======================================
| [  944.695595][T20855]  #1: ff110000100dc4d0 (k-sk_lock-AF_INET#2){+.+.}-{0:0}, at: __mptcp_retrans (net/mptcp/protocol.c:2766)
| [  944.695753][T20855]  #2: ff110000110b8b60 (&msk->fallback_lock){+.-.}-{3:3}, at: __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [  944.695909][T20855]
| [  944.695909][T20855] stack backtrace:
[  944.696013][T20855] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  944.696015][T20855] Call Trace:
[  944.696017][T20855]  <TASK>
[  944.696018][T20855]  dump_stack_lvl (lib/dump_stack.c:122)
[  944.696023][T20855]  print_deadlock_bug.cold (kernel/locking/lockdep.c:3044)
[  944.696027][T20855]  validate_chain (kernel/locking/lockdep.c:3898)
[  944.696032][T20855]  __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  944.696034][T20855]  lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  944.696035][T20855]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  944.696038][T20855]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[  944.696039][T20855]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[  944.696040][T20855]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  944.696042][T20855]  _raw_spin_lock_bh (./include/linux/spinlock_api_smp.h:127 kernel/locking/spinlock.c:178)
[  944.696045][T20855]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  944.696046][T20855]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  944.696048][T20855]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[  944.696051][T20855]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[  944.696053][T20855]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[  944.696055][T20855]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[  944.696057][T20855]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[  944.696060][T20855]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  944.696061][T20855]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[  944.696063][T20855]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[  944.696065][T20855]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[  944.696070][T20855]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[  944.696071][T20855]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  944.696074][T20855]  ? release_sock (net/core/sock.c:3794)
[  944.696076][T20855]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[  944.696077][T20855]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[  944.696080][T20855]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[  944.696083][T20855]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[  944.696085][T20855]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[  944.696089][T20855]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[  944.696092][T20855]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  944.696093][T20855]  ? ovl_llseek (fs/overlayfs/file.c:346)
[  944.696095][T20855]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[  944.696098][T20855]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[  944.696099][T20855]  ? ____sys_recvmsg (net/socket.c:1176)
[  944.696101][T20855]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[  944.696103][T20855]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[  944.696106][T20855]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[  944.696107][T20855]  ? ____sys_recvmsg (net/socket.c:1176)
[  944.696109][T20855]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[  944.696111][T20855]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  944.696112][T20855]  ? new_sync_read (fs/read_write.c:584)
[  944.696114][T20855]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  944.696115][T20855]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  944.696117][T20855]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[  944.696119][T20855]  vfs_write (fs/read_write.c:686)
[  944.696121][T20855]  ksys_write (fs/read_write.c:739)
[  944.696123][T20855]  ? __ia32_sys_read (fs/read_write.c:728)
[  944.696125][T20855]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  944.696127][T20855]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  944.696130][T20855]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  944.696132][T20855] RIP: 0033:0x7fe34bf6dc5e
[  944.696135][T20855] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  944.696137][T20855] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  944.696140][T20855] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[  944.696141][T20855] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[  944.696142][T20855] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[  944.696142][T20855] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[  944.696143][T20855] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [  944.696146][T20855]  </TASK>
| [  970.693073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [  970.693299][    C3] rcu: 3-....: (25994 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=5619
| [  970.693493][    C3] rcu: (t=26001 jiffies g=527745 q=4847 ncpus=4)
[  970.693628][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  970.693630][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[  970.693639][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[  970.693641][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[  970.693644][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[  970.693646][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[  970.693647][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[  970.693648][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[  970.693648][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[  970.693651][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[  970.693654][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  970.693655][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[  970.693656][    C3] PKRU: 55555554
[  970.693656][    C3] Call Trace:
[  970.693657][    C3]  <TASK>
[  970.693658][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[  970.693663][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[  970.693665][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[  970.693669][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[  970.693672][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[  970.693674][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  970.693677][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  970.693679][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[  970.693682][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[  970.693684][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[  970.693686][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[  970.693689][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[  970.693691][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  970.693692][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[  970.693694][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[  970.693696][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[  970.693701][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[  970.693702][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  970.693705][    C3]  ? release_sock (net/core/sock.c:3794)
[  970.693707][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[  970.693708][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[  970.693711][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[  970.693714][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[  970.693716][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[  970.693719][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[  970.693722][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  970.693723][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[  970.693725][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[  970.693728][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[  970.693729][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[  970.693731][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[  970.693733][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[  970.693735][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[  970.693737][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[  970.693738][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[  970.693740][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  970.693742][    C3]  ? new_sync_read (fs/read_write.c:584)
[  970.693743][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  970.693745][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  970.693746][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[  970.693749][    C3]  vfs_write (fs/read_write.c:686)
[  970.693751][    C3]  ksys_write (fs/read_write.c:739)
[  970.693752][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[  970.693754][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  970.693756][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  970.693765][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  970.693768][    C3] RIP: 0033:0x7fe34bf6dc5e
[  970.693772][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  970.693774][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  970.693776][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[  970.693777][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[  970.693778][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[  970.693779][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[  970.693780][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [  996.385106][    C3] hardirqs last  enabled at (23712): _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
| [  996.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [  996.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [  996.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[  996.385128][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  996.385130][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[  996.385133][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[  996.385135][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[  996.385137][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[  996.385139][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[  996.385139][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[  996.385140][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[  996.385141][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[  996.385144][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[  996.385147][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  996.385148][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[  996.385149][    C3] PKRU: 55555554
[  996.385149][    C3] Call Trace:
[  996.385153][    C3]  <TASK>
[  996.385157][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[  996.385162][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[  996.385164][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[  996.385167][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[  996.385171][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[  996.385173][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  996.385175][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[  996.385178][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[  996.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[  996.385183][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[  996.385185][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[  996.385188][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[  996.385190][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  996.385192][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[  996.385194][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[  996.385196][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[  996.385200][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[  996.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  996.385204][    C3]  ? release_sock (net/core/sock.c:3794)
[  996.385206][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[  996.385208][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[  996.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[  996.385214][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[  996.385216][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[  996.385220][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[  996.385222][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  996.385224][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[  996.385226][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[  996.385228][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[  996.385230][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[  996.385232][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[  996.385234][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[  996.385236][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[  996.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[  996.385239][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[  996.385242][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  996.385243][    C3]  ? new_sync_read (fs/read_write.c:584)
[  996.385245][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  996.385246][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  996.385248][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[  996.385250][    C3]  vfs_write (fs/read_write.c:686)
[  996.385252][    C3]  ksys_write (fs/read_write.c:739)
[  996.385254][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[  996.385256][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  996.385258][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  996.385262][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  996.385265][    C3] RIP: 0033:0x7fe34bf6dc5e
[  996.385269][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  996.385271][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[  996.385272][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[  996.385273][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[  996.385274][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[  996.385274][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[  996.385275][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1008.964519][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1008.964712][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1008.964865][    C3] NMI backtrace for cpu 3
| [ 1008.964883][    C3] Tainted: [L]=SOFTLOCKUP
[ 1008.964884][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1008.964887][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1008.964896][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1008.964898][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1008.964901][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1008.964903][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1008.964904][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1008.964904][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1008.964905][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1008.964907][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1008.964911][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1008.964912][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1008.964913][    C3] PKRU: 55555554
[ 1008.964913][    C3] Call Trace:
[ 1008.964915][    C3]  <TASK>
[ 1008.964918][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1008.964923][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1008.964925][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1008.964929][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1008.964932][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1008.964934][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1008.964938][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1008.964940][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1008.964943][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1008.964945][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1008.964947][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1008.964949][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1008.964951][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1008.964953][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1008.964955][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1008.964958][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1008.964962][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1008.964964][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1008.964966][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1008.964968][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1008.964969][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1008.964972][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1008.964976][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1008.964977][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1008.964981][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1008.964983][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1008.964985][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1008.964987][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1008.964989][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1008.964991][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1008.964993][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1008.964995][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1008.964997][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1008.964999][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1008.965000][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1008.965002][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1008.965004][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1008.965006][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1008.965007][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1008.965008][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1008.965011][    C3]  vfs_write (fs/read_write.c:686)
[ 1008.965013][    C3]  ksys_write (fs/read_write.c:739)
[ 1008.965015][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1008.965017][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1008.965019][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1008.965022][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1008.965025][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1008.965029][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1008.965030][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1008.965032][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1008.965033][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1008.965033][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1008.965034][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1008.965035][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1036.385113][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1036.385115][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1036.385118][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1036.385127][    C3] Tainted: [L]=SOFTLOCKUP
[ 1036.385128][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1036.385130][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1036.385133][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1036.385135][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1036.385137][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1036.385138][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1036.385139][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1036.385140][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1036.385140][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1036.385143][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1036.385146][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1036.385147][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1036.385148][    C3] PKRU: 55555554
[ 1036.385149][    C3] Call Trace:
[ 1036.385152][    C3]  <TASK>
[ 1036.385155][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1036.385160][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1036.385162][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1036.385166][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1036.385170][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1036.385172][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1036.385174][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1036.385177][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1036.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1036.385182][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1036.385184][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1036.385187][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1036.385189][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1036.385190][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1036.385192][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1036.385195][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1036.385199][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1036.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1036.385203][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1036.385205][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1036.385207][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1036.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1036.385213][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1036.385215][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1036.385219][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1036.385222][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1036.385223][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1036.385225][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1036.385228][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1036.385229][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1036.385232][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1036.385233][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1036.385235][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1036.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1036.385239][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1036.385241][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1036.385243][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1036.385245][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1036.385246][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1036.385248][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1036.385250][    C3]  vfs_write (fs/read_write.c:686)
[ 1036.385252][    C3]  ksys_write (fs/read_write.c:739)
[ 1036.385254][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1036.385256][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1036.385258][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1036.385262][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1036.385265][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1036.385268][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1036.385270][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1036.385271][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1036.385272][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1036.385273][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1036.385274][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1036.385274][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1048.697073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1048.697320][    C3] rcu: 3-....: (103965 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=22978
| [ 1048.697610][    C3] rcu: (t=104005 jiffies g=527745 q=7125 ncpus=4)
| [ 1048.697770][    C3] Tainted: [L]=SOFTLOCKUP
[ 1048.697771][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1048.697773][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1048.697781][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1048.697783][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1048.697786][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1048.697787][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1048.697788][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1048.697789][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1048.697789][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1048.697792][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1048.697795][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1048.697796][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1048.697797][    C3] PKRU: 55555554
[ 1048.697798][    C3] Call Trace:
[ 1048.697799][    C3]  <TASK>
[ 1048.697800][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1048.697804][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1048.697807][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1048.697810][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1048.697814][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1048.697815][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1048.697819][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1048.697821][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1048.697824][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1048.697826][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1048.697828][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1048.697830][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1048.697832][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1048.697834][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1048.697836][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1048.697838][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1048.697842][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1048.697844][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1048.697846][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1048.697848][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1048.697850][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1048.697853][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1048.697856][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1048.697858][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1048.697861][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1048.697864][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1048.697865][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1048.697867][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1048.697870][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1048.697871][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1048.697873][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1048.697875][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1048.697877][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1048.697879][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1048.697881][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1048.697882][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1048.697884][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1048.697886][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1048.697887][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1048.697889][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1048.697891][    C3]  vfs_write (fs/read_write.c:686)
[ 1048.697893][    C3]  ksys_write (fs/read_write.c:739)
[ 1048.697895][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1048.697897][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1048.697899][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1048.697902][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1048.697905][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1048.697907][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1048.697908][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1048.697910][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1048.697911][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1048.697911][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1048.697912][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1048.697913][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1076.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1076.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1076.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1076.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 1076.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1076.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1076.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1076.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1076.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1076.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1076.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1076.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1076.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1076.385147][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1076.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1076.385152][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1076.385153][    C3] PKRU: 55555554
[ 1076.385153][    C3] Call Trace:
[ 1076.385157][    C3]  <TASK>
[ 1076.385160][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1076.385166][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1076.385168][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1076.385172][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1076.385175][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1076.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1076.385179][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1076.385182][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1076.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1076.385187][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1076.385189][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1076.385192][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1076.385194][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1076.385195][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1076.385197][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1076.385200][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1076.385204][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1076.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1076.385208][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1076.385210][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1076.385212][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1076.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1076.385218][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1076.385220][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1076.385224][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1076.385226][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1076.385228][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1076.385230][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1076.385233][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1076.385234][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1076.385237][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1076.385238][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1076.385241][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1076.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1076.385244][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1076.385247][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1076.385248][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1076.385250][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1076.385251][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1076.385253][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1076.385255][    C3]  vfs_write (fs/read_write.c:686)
[ 1076.385258][    C3]  ksys_write (fs/read_write.c:739)
[ 1076.385259][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1076.385261][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1076.385264][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1076.385267][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1076.385271][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1076.385274][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1076.385275][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1076.385277][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1076.385278][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1076.385279][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1076.385279][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1076.385280][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1104.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1104.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1104.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1104.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 1104.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1104.385131][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1104.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1104.385136][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1104.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1104.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1104.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1104.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1104.385142][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1104.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1104.385148][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1104.385149][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1104.385150][    C3] PKRU: 55555554
[ 1104.385151][    C3] Call Trace:
[ 1104.385155][    C3]  <TASK>
[ 1104.385158][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1104.385163][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1104.385165][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1104.385169][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1104.385173][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1104.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1104.385177][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1104.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1104.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1104.385184][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1104.385186][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1104.385189][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1104.385191][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1104.385193][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1104.385195][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1104.385197][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1104.385201][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1104.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1104.385205][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1104.385207][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1104.385209][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1104.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1104.385215][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1104.385217][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1104.385221][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1104.385224][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1104.385225][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1104.385227][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1104.385229][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1104.385231][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1104.385233][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1104.385235][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1104.385237][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1104.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1104.385240][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1104.385242][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1104.385244][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1104.385246][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1104.385247][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1104.385249][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1104.385251][    C3]  vfs_write (fs/read_write.c:686)
[ 1104.385253][    C3]  ksys_write (fs/read_write.c:739)
[ 1104.385255][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1104.385257][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1104.385259][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1104.385263][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1104.385266][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1104.385270][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1104.385272][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1104.385273][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1104.385274][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1104.385275][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1104.385276][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1104.385276][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1107.269517][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1107.269681][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1107.269870][    C3] NMI backtrace for cpu 3
| [ 1107.269888][    C3] Tainted: [L]=SOFTLOCKUP
[ 1107.269889][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1107.269891][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1107.269900][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1107.269902][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1107.269906][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1107.269908][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1107.269909][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1107.269910][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1107.269910][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1107.269913][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1107.269916][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1107.269917][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1107.269918][    C3] PKRU: 55555554
[ 1107.269919][    C3] Call Trace:
[ 1107.269923][    C3]  <TASK>
[ 1107.269927][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1107.269932][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1107.269934][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1107.269938][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1107.269942][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1107.269944][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1107.269947][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1107.269950][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1107.269953][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1107.269955][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1107.269957][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1107.269960][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1107.269962][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1107.269964][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1107.269966][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1107.269968][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1107.269974][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1107.269976][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1107.269980][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1107.269982][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1107.269984][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1107.269988][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1107.269991][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1107.269993][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1107.269996][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1107.269999][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1107.270000][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1107.270002][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1107.270005][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1107.270006][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1107.270009][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1107.270010][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1107.270012][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1107.270014][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1107.270016][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1107.270018][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1107.270020][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1107.270021][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1107.270023][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1107.270024][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1107.270030][    C3]  vfs_write (fs/read_write.c:686)
[ 1107.270032][    C3]  ksys_write (fs/read_write.c:739)
[ 1107.270034][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1107.270036][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1107.270038][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1107.270042][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1107.270045][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1107.270049][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1107.270050][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1107.270051][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1107.270052][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1107.270053][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1107.270054][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1107.270055][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c




| [ 1107.270057][    C3]  </TASK>
[ 1107.271268][   T44] INFO: task mptcp_connect:20849 blocked for more than 122 seconds.
[ 1107.280987][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1107.281164][   T44]       Blocked by coredump.
[ 1107.281312][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1107.281497][   T44] task:mptcp_connect   state:D stack:25744 pid:20849 tgid:20849 ppid:201    task_flags:0x40010c flags:0x00080001
[ 1107.281753][   T44] Call Trace:
[ 1107.281861][   T44]  <TASK>
[ 1107.281948][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1107.282100][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1107.282229][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1107.282393][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1107.282534][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1107.282656][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1107.282790][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1107.282945][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1107.283088][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1107.283254][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1107.283379][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1107.283538][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1107.283642][   T44]  synchronize_rcu_expedited (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:972 (discriminator 2))
[ 1107.283765][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1107.283894][   T44]  ? complete (kernel/sched/wait.c:402)
[ 1107.284039][   T44]  ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1) ./include/trace/events/rcu.h:537 (discriminator 1))
[ 1107.284174][   T44]  ? sync_rcu_exp_select_cpus (kernel/rcu/tree_exp.h:488)
[ 1107.284298][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1107.284456][   T44]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1107.284612][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1107.284738][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1107.284864][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1107.284986][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1107.285162][   T44]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1107.285283][   T44]  free_nsproxy (kernel/nsproxy.c:189)
[ 1107.285417][   T44]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:966)
[ 1107.285523][   T44]  ? stack_not_used (kernel/exit.c:898)
[ 1107.285678][   T44]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1338)
[ 1107.285823][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1107.285945][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1107.286081][   T44]  do_group_exit (kernel/exit.c:1088)
[ 1107.286237][   T44]  __x64_sys_exit_group (kernel/exit.c:1116)
[ 1107.286362][   T44]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[ 1107.286489][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1107.286613][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1107.286785][   T44] RIP: 0033:0x7f88e7533008
[ 1107.286917][   T44] RSP: 002b:00007ffcb9b5b248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[ 1107.287134][   T44] RAX: ffffffffffffffda RBX: 00007f88e765efc8 RCX: 00007f88e7533008
[ 1107.287333][   T44] RDX: 00007f88e7470a48 RSI: ffffffffffffffa0 RDI: 0000000000000002
[ 1107.287504][   T44] RBP: 00007ffcb9b5b2a0 R08: 0000000000000000 R09: 0000000000000000
[ 1107.287669][   T44] R10: 00007ffcb9b5b0e0 R11: 0000000000000202 R12: 0000000000000001
[ 1107.287871][   T44] R13: 0000000000000002 R14: 00007f88e765d680 R15: 00007f88e765efe0
| [ 1126.701073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1126.701333][    C3] rcu: 3-....: (181944 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=40758
| [ 1126.701563][    C3] rcu: (t=182009 jiffies g=527745 q=8922 ncpus=4)
| [ 1126.701753][    C3] Tainted: [L]=SOFTLOCKUP
[ 1126.701754][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1126.701756][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1126.701765][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1126.701767][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1126.701770][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1126.701771][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1126.701772][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1126.701773][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1126.701774][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1126.701776][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1126.701779][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1126.701780][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1126.701781][    C3] PKRU: 55555554
[ 1126.701782][    C3] Call Trace:
[ 1126.701783][    C3]  <TASK>
[ 1126.701784][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1126.701789][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1126.701791][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1126.701795][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1126.701798][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1126.701800][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1126.701803][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1126.701805][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1126.701808][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1126.701809][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1126.701812][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1126.701814][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1126.701816][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1126.701818][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1126.701820][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1126.701822][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1126.701826][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1126.701828][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1126.701830][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1126.701832][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1126.701834][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1126.701836][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1126.701840][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1126.701841][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1126.701845][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1126.701847][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1126.701849][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1126.701851][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1126.701854][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1126.701855][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1126.701857][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1126.701859][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1126.701861][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1126.701863][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1126.701864][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1126.701866][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1126.701867][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1126.701869][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1126.701871][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1126.701872][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1126.701874][    C3]  vfs_write (fs/read_write.c:686)
[ 1126.701876][    C3]  ksys_write (fs/read_write.c:739)
[ 1126.701878][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1126.701880][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1126.701882][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1126.701885][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1126.701888][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1126.701891][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1126.701892][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1126.701893][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1126.701894][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1126.701895][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1126.701896][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1126.701896][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1152.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1152.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1152.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1152.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 1152.385129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1152.385130][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1152.385134][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1152.385135][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1152.385138][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1152.385139][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1152.385140][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1152.385141][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1152.385142][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1152.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1152.385148][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1152.385149][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1152.385150][    C3] PKRU: 55555554
[ 1152.385151][    C3] Call Trace:
[ 1152.385153][    C3]  <TASK>
[ 1152.385155][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1152.385160][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1152.385163][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1152.385166][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1152.385170][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1152.385172][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1152.385174][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1152.385177][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1152.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1152.385181][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1152.385184][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1152.385186][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1152.385188][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1152.385190][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1152.385192][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1152.385195][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1152.385199][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1152.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1152.385203][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1152.385205][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1152.385207][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1152.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1152.385213][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1152.385215][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1152.385219][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1152.385221][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1152.385223][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1152.385225][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1152.385228][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1152.385229][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1152.385232][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1152.385233][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1152.385235][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1152.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1152.385239][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1152.385241][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1152.385243][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1152.385244][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1152.385246][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1152.385247][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1152.385250][    C3]  vfs_write (fs/read_write.c:686)
[ 1152.385252][    C3]  ksys_write (fs/read_write.c:739)
[ 1152.385254][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1152.385256][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1152.385258][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1152.385261][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1152.385265][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1152.385268][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1152.385269][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1152.385271][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1152.385272][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1152.385272][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1152.385273][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1152.385274][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1180.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1180.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1180.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1180.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 1180.385129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1180.385131][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1180.385134][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1180.385136][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1180.385138][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1180.385139][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1180.385140][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1180.385141][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1180.385142][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1180.385144][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1180.385148][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1180.385149][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1180.385150][    C3] PKRU: 55555554
[ 1180.385150][    C3] Call Trace:
[ 1180.385153][    C3]  <TASK>
[ 1180.385155][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1180.385160][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1180.385162][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1180.385166][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1180.385170][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1180.385171][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1180.385174][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1180.385177][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1180.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1180.385182][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1180.385184][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1180.385187][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1180.385189][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1180.385190][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1180.385192][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1180.385195][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1180.385199][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1180.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1180.385203][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1180.385205][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1180.385207][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1180.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1180.385213][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1180.385215][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1180.385218][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1180.385221][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1180.385223][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1180.385225][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1180.385227][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1180.385229][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1180.385231][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1180.385233][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1180.385235][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1180.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1180.385238][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1180.385241][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1180.385242][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1180.385244][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1180.385245][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1180.385247][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1180.385249][    C3]  vfs_write (fs/read_write.c:686)
[ 1180.385251][    C3]  ksys_write (fs/read_write.c:739)
[ 1180.385253][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1180.385255][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1180.385257][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1180.385261][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1180.385264][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1180.385268][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1180.385269][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1180.385271][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1180.385272][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1180.385272][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1180.385273][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1180.385274][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1204.704073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1204.704299][    C3] rcu: 3-....: (259924 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=58434
| [ 1204.704549][    C3] rcu: (t=260012 jiffies g=527745 q=10087 ncpus=4)
| [ 1204.704694][    C3] Tainted: [L]=SOFTLOCKUP
[ 1204.704696][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1204.704698][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1204.704706][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1204.704708][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1204.704712][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1204.704713][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1204.704714][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1204.704715][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1204.704715][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1204.704718][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1204.704721][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1204.704722][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1204.704723][    C3] PKRU: 55555554
[ 1204.704723][    C3] Call Trace:
[ 1204.704724][    C3]  <TASK>
[ 1204.704725][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1204.704730][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1204.704732][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1204.704736][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1204.704739][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1204.704741][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1204.704744][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1204.704746][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1204.704749][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1204.704751][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1204.704753][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1204.704756][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1204.704758][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1204.704759][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1204.704762][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1204.704763][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1204.704768][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1204.704770][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1204.704772][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1204.704774][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1204.704775][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1204.704778][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1204.704781][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1204.704783][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1204.704786][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1204.704789][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1204.704791][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1204.704793][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1204.704795][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1204.704796][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1204.704798][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1204.704800][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1204.704802][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1204.704804][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1204.704805][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1204.704807][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1204.704813][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1204.704815][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1204.704816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1204.704818][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1204.704820][    C3]  vfs_write (fs/read_write.c:686)
[ 1204.704822][    C3]  ksys_write (fs/read_write.c:739)
[ 1204.704824][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1204.704826][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1204.704828][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1204.704831][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1204.704833][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1204.704837][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1204.704838][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1204.704840][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1204.704841][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1204.704842][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1204.704842][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1204.704843][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1205.573409][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1205.573608][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1205.573762][    C3] NMI backtrace for cpu 3
| [ 1205.573767][    C3] Tainted: [L]=SOFTLOCKUP
[ 1205.573767][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1205.573768][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1205.573770][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1205.573771][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1205.573772][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1205.573773][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1205.573773][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1205.573774][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1205.573775][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1205.573776][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1205.573778][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1205.573779][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1205.573780][    C3] PKRU: 55555554
[ 1205.573780][    C3] Call Trace:
[ 1205.573781][    C3]  <TASK>
[ 1205.573782][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1205.573784][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1205.573786][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1205.573788][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1205.573790][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1205.573792][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1205.573794][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1205.573796][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1205.573799][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1205.573801][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1205.573803][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1205.573805][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1205.573807][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1205.573809][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1205.573811][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1205.573817][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1205.573819][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1205.573821][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1205.573823][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1205.573824][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1205.573826][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1205.573829][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1205.573831][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1205.573832][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1205.573834][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1205.573836][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1205.573837][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1205.573839][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1205.573840][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1205.573841][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1205.573844][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1205.573845][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1205.573847][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1205.573848][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1205.573850][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1205.573851][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1205.573853][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1205.573855][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1205.573856][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1205.573857][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1205.573860][    C3]  vfs_write (fs/read_write.c:686)
[ 1205.573862][    C3]  ksys_write (fs/read_write.c:739)
[ 1205.573863][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1205.573865][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1205.573867][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1205.573869][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1205.573871][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1205.573872][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1205.573873][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1205.573874][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1205.573875][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1205.573875][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1205.573876][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1205.573877][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c




| [ 1205.573879][    C3]  </TASK>
[ 1230.148152][   T44] INFO: task mptcp_connect:20849 blocked for more than 245 seconds.
[ 1230.148445][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1230.148656][   T44]       Blocked by coredump.
[ 1230.148786][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1230.148985][   T44] task:mptcp_connect   state:D stack:25744 pid:20849 tgid:20849 ppid:201    task_flags:0x40010c flags:0x00080001
[ 1230.149269][   T44] Call Trace:
[ 1230.149379][   T44]  <TASK>
[ 1230.149471][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1230.149607][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1230.149767][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1230.149896][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1230.150041][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1230.150176][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.150335][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.150458][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1230.150580][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1230.150728][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1230.150884][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.151018][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1230.151156][   T44]  synchronize_rcu_expedited (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:972 (discriminator 2))
[ 1230.151283][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1230.151445][   T44]  ? complete (kernel/sched/wait.c:402)
[ 1230.151552][   T44]  ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1) ./include/trace/events/rcu.h:537 (discriminator 1))
[ 1230.151679][   T44]  ? sync_rcu_exp_select_cpus (kernel/rcu/tree_exp.h:488)
[ 1230.151803][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1230.151979][   T44]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1230.152115][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1230.152243][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1230.152373][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1230.152546][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1230.152669][   T44]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1230.152793][   T44]  free_nsproxy (kernel/nsproxy.c:189)
[ 1230.152926][   T44]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:966)
[ 1230.153064][   T44]  ? stack_not_used (kernel/exit.c:898)
[ 1230.153202][   T44]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1338)
[ 1230.153347][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.153476][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.153633][   T44]  do_group_exit (kernel/exit.c:1088)
[ 1230.153757][   T44]  __x64_sys_exit_group (kernel/exit.c:1116)
[ 1230.153880][   T44]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[ 1230.154010][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1230.154182][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1230.154328][   T44] RIP: 0033:0x7f88e7533008
[ 1230.154455][   T44] RSP: 002b:00007ffcb9b5b248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[ 1230.154658][   T44] RAX: ffffffffffffffda RBX: 00007f88e765efc8 RCX: 00007f88e7533008
[ 1230.154819][   T44] RDX: 00007f88e7470a48 RSI: ffffffffffffffa0 RDI: 0000000000000002
[ 1230.154988][   T44] RBP: 00007ffcb9b5b2a0 R08: 0000000000000000 R09: 0000000000000000
[ 1230.155196][   T44] R10: 00007ffcb9b5b0e0 R11: 0000000000000202 R12: 0000000000000001
[ 1230.155365][   T44] R13: 0000000000000002 R14: 00007f88e765d680 R15: 00007f88e765efe0




| [ 1230.155528][   T44]  </TASK>
[ 1230.155667][   T44] INFO: task ip:20858 blocked for more than 122 seconds.
[ 1230.155804][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1230.155967][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1230.156189][   T44] task:ip              state:D stack:25336 pid:20858 tgid:20858 ppid:20856  task_flags:0x400100 flags:0x00080001
[ 1230.156404][   T44] Call Trace:
[ 1230.156538][   T44]  <TASK>
[ 1230.156628][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1230.156753][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1230.156877][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1230.157014][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.157183][   T44]  ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 33))
[ 1230.157305][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.157430][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1230.157556][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.157709][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1230.157831][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1230.157957][   T44]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[ 1230.158095][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1230.158255][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.158381][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1230.158487][   T44]  schedule_preempt_disabled (kernel/sched/core.c:7084)
[ 1230.158610][   T44]  __mutex_lock (kernel/locking/mutex.c:183 kernel/locking/mutex.c:678 kernel/locking/mutex.c:760)
[ 1230.158765][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1230.158889][   T44]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[ 1230.159018][   T44]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:27)
[ 1230.159153][   T44]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:91)
[ 1230.159314][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.159443][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1230.159566][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.159690][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1230.159842][   T44]  exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1230.159972][   T44]  ? stack_depot_save_flags (lib/stackdepot.c:601 (discriminator 1) lib/stackdepot.c:668 (discriminator 1))
[ 1230.160110][   T44]  ? trace_rcu_exp_funnel_lock (kernel/rcu/tree_exp.h:302)
[ 1230.160262][   T44]  ? kasan_save_stack (mm/kasan/common.c:58)
[ 1230.160418][   T44]  ? kasan_save_track (mm/kasan/common.c:69 (discriminator 1) mm/kasan/common.c:78 (discriminator 1))
[ 1230.160542][   T44]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1230.160666][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1230.160789][   T44]  ? __x64_sys_umount (fs/namespace.c:2053 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1230.160949][   T44]  synchronize_rcu_expedited (kernel/rcu/tree_exp.h:957 (discriminator 1))
[ 1230.161091][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1230.161224][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1230.161348][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1230.161505][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1230.161629][   T44]  ? umount_tree (fs/namespace.c:1813)
[ 1230.161752][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1230.161879][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1230.162039][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.162172][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1230.162296][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.162425][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1230.162579][   T44]  do_umount (fs/namespace.c:1954)
[ 1230.162685][   T44]  path_umount (fs/namespace.c:2035)
[ 1230.162815][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1230.162946][   T44]  __x64_sys_umount (fs/namespace.c:2055 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1230.163115][   T44]  ? path_umount (fs/namespace.c:2058)
[ 1230.163240][   T44]  ? switch_fpu_return (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 ./include/linux/thread_info.h:102 arch/x86/kernel/fpu/context.h:79 arch/x86/kernel/fpu/core.c:858)
[ 1230.163364][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1230.163493][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1230.163668][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1230.163792][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1230.163938][   T44] RIP: 0033:0x7f98acf0e11b
[ 1230.164085][   T44] RSP: 002b:00007ffffc4d00f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 1230.164246][   T44] RAX: ffffffffffffffda RBX: 00007ffffc4d45b1 RCX: 00007f98acf0e11b
[ 1230.164410][   T44] RDX: 00000000004728bd RSI: 0000000000000002 RDI: 000000000047967b
[ 1230.164606][   T44] RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
[ 1230.164766][   T44] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[ 1230.164931][   T44] R13: 0000000000000065 R14: 00007ffffc4d45bc R15: 00007ffffc4d35e8
| [ 1232.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1232.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1232.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1232.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 1232.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1232.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1232.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1232.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1232.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1232.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1232.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1232.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1232.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1232.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1232.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1232.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1232.385151][    C3] PKRU: 55555554
[ 1232.385152][    C3] Call Trace:
[ 1232.385155][    C3]  <TASK>
[ 1232.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1232.385164][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1232.385166][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1232.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1232.385174][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1232.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1232.385178][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1232.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1232.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1232.385185][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1232.385187][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1232.385190][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1232.385192][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1232.385194][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1232.385196][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1232.385198][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1232.385202][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1232.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1232.385206][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1232.385208][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1232.385210][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1232.385213][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1232.385216][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1232.385218][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1232.385221][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1232.385224][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1232.385225][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1232.385227][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1232.385230][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1232.385231][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1232.385234][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1232.385235][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1232.385238][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1232.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1232.385241][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1232.385244][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1232.385245][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1232.385247][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1232.385248][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1232.385250][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1232.385252][    C3]  vfs_write (fs/read_write.c:686)
[ 1232.385255][    C3]  ksys_write (fs/read_write.c:739)
[ 1232.385257][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1232.385258][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1232.385261][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1232.385264][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1232.385268][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1232.385271][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1232.385272][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1232.385274][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1232.385275][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1232.385276][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1232.385276][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1232.385277][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1260.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1260.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1260.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1260.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 1260.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1260.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1260.385136][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1260.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1260.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1260.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1260.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1260.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1260.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1260.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1260.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1260.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1260.385151][    C3] PKRU: 55555554
[ 1260.385152][    C3] Call Trace:
[ 1260.385155][    C3]  <TASK>
[ 1260.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1260.385164][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1260.385166][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1260.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1260.385173][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1260.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1260.385177][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1260.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1260.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1260.385185][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1260.385187][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1260.385190][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1260.385192][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1260.385193][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1260.385196][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1260.385198][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1260.385202][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1260.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1260.385206][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1260.385208][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1260.385210][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1260.385213][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1260.385216][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1260.385218][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1260.385221][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1260.385224][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1260.385226][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1260.385228][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1260.385231][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1260.385232][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1260.385234][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1260.385236][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1260.385239][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1260.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1260.385242][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1260.385244][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1260.385246][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1260.385247][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1260.385249][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1260.385250][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1260.385253][    C3]  vfs_write (fs/read_write.c:686)
[ 1260.385255][    C3]  ksys_write (fs/read_write.c:739)
[ 1260.385257][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1260.385259][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1260.385261][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1260.385265][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1260.385268][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1260.385272][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1260.385273][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1260.385275][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1260.385275][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1260.385276][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1260.385277][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1260.385278][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1282.708073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1282.708339][    C3] rcu: 3-....: (337896 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=75727
| [ 1282.708629][    C3] rcu: (t=338016 jiffies g=527745 q=12121 ncpus=4)
| [ 1282.708774][    C3] Tainted: [L]=SOFTLOCKUP
[ 1282.708775][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1282.708777][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1282.708786][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1282.708788][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1282.708791][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1282.708793][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1282.708794][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1282.708795][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1282.708795][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1282.708798][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1282.708801][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1282.708802][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1282.708803][    C3] PKRU: 55555554
[ 1282.708804][    C3] Call Trace:
[ 1282.708805][    C3]  <TASK>
[ 1282.708806][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1282.708811][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1282.708813][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1282.708817][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1282.708820][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1282.708822][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1282.708825][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1282.708827][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1282.708830][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1282.708832][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1282.708834][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1282.708836][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1282.708838][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1282.708840][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1282.708842][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1282.708844][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1282.708849][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1282.708851][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1282.708853][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1282.708855][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1282.708856][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1282.708859][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1282.708863][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1282.708864][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1282.708868][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1282.708871][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1282.708872][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1282.708875][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1282.708877][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1282.708878][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1282.708881][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1282.708882][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1282.708885][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1282.708887][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1282.708888][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1282.708890][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1282.708891][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1282.708893][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1282.708895][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1282.708896][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1282.708898][    C3]  vfs_write (fs/read_write.c:686)
[ 1282.708901][    C3]  ksys_write (fs/read_write.c:739)
[ 1282.708902][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1282.708904][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1282.708906][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1282.708910][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1282.708912][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1282.708915][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1282.708916][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1282.708918][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1282.708918][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1282.708919][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1282.708920][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1282.708921][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1303.876517][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1303.876686][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1303.876903][    C3] NMI backtrace for cpu 3
| [ 1303.876913][    C3] Tainted: [L]=SOFTLOCKUP
[ 1303.876914][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1303.876916][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1303.876925][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1303.876927][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1303.876930][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1303.876931][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1303.876932][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1303.876933][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1303.876933][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1303.876936][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1303.876939][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1303.876940][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1303.876941][    C3] PKRU: 55555554
[ 1303.876942][    C3] Call Trace:
[ 1303.876944][    C3]  <TASK>
[ 1303.876948][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1303.876953][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1303.876955][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1303.876959][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1303.876962][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1303.876964][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1303.876967][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1303.876970][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1303.876973][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1303.876975][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1303.876977][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1303.876980][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1303.876982][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1303.876983][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1303.876985][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1303.876988][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1303.876992][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1303.876994][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1303.876996][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1303.876998][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1303.877000][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1303.877003][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1303.877006][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1303.877008][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1303.877011][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1303.877014][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1303.877016][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1303.877018][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1303.877021][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1303.877022][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1303.877024][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1303.877026][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1303.877028][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1303.877030][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1303.877031][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1303.877034][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1303.877035][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1303.877037][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1303.877038][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1303.877040][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1303.877042][    C3]  vfs_write (fs/read_write.c:686)
[ 1303.877044][    C3]  ksys_write (fs/read_write.c:739)
[ 1303.877046][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1303.877048][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1303.877050][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1303.877054][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1303.877057][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1303.877060][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1303.877061][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1303.877063][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1303.877064][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1303.877065][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1303.877066][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1303.877066][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1328.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1328.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1328.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1328.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 1328.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1328.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1328.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1328.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1328.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1328.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1328.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1328.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1328.385142][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1328.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1328.385148][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1328.385149][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1328.385150][    C3] PKRU: 55555554
[ 1328.385151][    C3] Call Trace:
[ 1328.385154][    C3]  <TASK>
[ 1328.385158][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1328.385163][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1328.385165][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1328.385169][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1328.385173][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1328.385174][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1328.385177][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1328.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1328.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1328.385185][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1328.385187][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1328.385190][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1328.385192][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1328.385194][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1328.385196][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1328.385198][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1328.385202][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1328.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1328.385206][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1328.385208][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1328.385210][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1328.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1328.385217][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1328.385219][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1328.385222][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1328.385225][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1328.385226][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1328.385228][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1328.385231][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1328.385232][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1328.385235][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1328.385236][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1328.385239][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1328.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1328.385242][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1328.385245][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1328.385246][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1328.385248][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1328.385249][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1328.385251][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1328.385253][    C3]  vfs_write (fs/read_write.c:686)
[ 1328.385255][    C3]  ksys_write (fs/read_write.c:739)
[ 1328.385257][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1328.385259][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1328.385262][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1328.385265][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1328.385269][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1328.385272][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1328.385273][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1328.385275][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1328.385276][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1328.385277][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1328.385277][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1328.385278][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c




| [ 1328.385280][    C3]  </TASK>
[ 1353.029159][   T44] INFO: task mptcp_connect:20849 blocked for more than 368 seconds.
[ 1353.029435][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1353.029632][   T44]       Blocked by coredump.
[ 1353.029794][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1353.029979][   T44] task:mptcp_connect   state:D stack:25744 pid:20849 tgid:20849 ppid:201    task_flags:0x40010c flags:0x00080001
[ 1353.030260][   T44] Call Trace:
[ 1353.030369][   T44]  <TASK>
[ 1353.030464][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1353.030597][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1353.030760][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1353.030888][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1353.031038][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1353.031199][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.031357][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.031484][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1353.031610][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1353.031760][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1353.031912][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.032031][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1353.032169][   T44]  synchronize_rcu_expedited (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:972 (discriminator 2))
[ 1353.032304][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1353.032466][   T44]  ? complete (kernel/sched/wait.c:402)
[ 1353.032582][   T44]  ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1) ./include/trace/events/rcu.h:537 (discriminator 1))
[ 1353.032704][   T44]  ? sync_rcu_exp_select_cpus (kernel/rcu/tree_exp.h:488)
[ 1353.032826][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1353.032997][   T44]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1353.033140][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1353.033278][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1353.033400][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1353.033565][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1353.033687][   T44]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1353.033810][   T44]  free_nsproxy (kernel/nsproxy.c:189)
[ 1353.033936][   T44]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:966)
[ 1353.034063][   T44]  ? stack_not_used (kernel/exit.c:898)
[ 1353.034189][   T44]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1338)
[ 1353.034323][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.034434][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.034585][   T44]  do_group_exit (kernel/exit.c:1088)
[ 1353.034699][   T44]  __x64_sys_exit_group (kernel/exit.c:1116)
[ 1353.034809][   T44]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[ 1353.034921][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1353.035064][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1353.035207][   T44] RIP: 0033:0x7f88e7533008
[ 1353.035330][   T44] RSP: 002b:00007ffcb9b5b248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[ 1353.035514][   T44] RAX: ffffffffffffffda RBX: 00007f88e765efc8 RCX: 00007f88e7533008
[ 1353.035658][   T44] RDX: 00007f88e7470a48 RSI: ffffffffffffffa0 RDI: 0000000000000002
[ 1353.035803][   T44] RBP: 00007ffcb9b5b2a0 R08: 0000000000000000 R09: 0000000000000000
[ 1353.035982][   T44] R10: 00007ffcb9b5b0e0 R11: 0000000000000202 R12: 0000000000000001
[ 1353.036139][   T44] R13: 0000000000000002 R14: 00007f88e765d680 R15: 00007f88e765efe0




| [ 1353.036284][   T44]  </TASK>
[ 1353.036409][   T44] INFO: task ip:20858 blocked for more than 245 seconds.
[ 1353.036541][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1353.036682][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1353.036861][   T44] task:ip              state:D stack:25336 pid:20858 tgid:20858 ppid:20856  task_flags:0x400100 flags:0x00080001
[ 1353.037049][   T44] Call Trace:
[ 1353.037189][   T44]  <TASK>
[ 1353.037270][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1353.037383][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1353.037503][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1353.037614][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.037755][   T44]  ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 33))
[ 1353.037865][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.037975][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1353.038103][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.038245][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1353.038356][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1353.038472][   T44]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[ 1353.038588][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1353.038727][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.038842][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1353.038938][   T44]  schedule_preempt_disabled (kernel/sched/core.c:7084)
[ 1353.039048][   T44]  __mutex_lock (kernel/locking/mutex.c:183 kernel/locking/mutex.c:678 kernel/locking/mutex.c:760)
[ 1353.039203][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1353.039316][   T44]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[ 1353.039426][   T44]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:27)
[ 1353.039551][   T44]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:91)
[ 1353.039697][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.039808][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1353.039918][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.040029][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1353.040182][   T44]  exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1353.040292][   T44]  ? stack_depot_save_flags (lib/stackdepot.c:601 (discriminator 1) lib/stackdepot.c:668 (discriminator 1))
[ 1353.040412][   T44]  ? trace_rcu_exp_funnel_lock (kernel/rcu/tree_exp.h:302)
[ 1353.040545][   T44]  ? kasan_save_stack (mm/kasan/common.c:58)
[ 1353.040686][   T44]  ? kasan_save_track (mm/kasan/common.c:69 (discriminator 1) mm/kasan/common.c:78 (discriminator 1))
[ 1353.040797][   T44]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1353.040908][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1353.041019][   T44]  ? __x64_sys_umount (fs/namespace.c:2053 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1353.041145][   T44]  synchronize_rcu_expedited (kernel/rcu/tree_exp.h:957 (discriminator 1))
[ 1353.041259][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1353.041377][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1353.041495][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1353.041639][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1353.041752][   T44]  ? umount_tree (fs/namespace.c:1813)
[ 1353.041864][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1353.041978][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1353.042133][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.042246][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1353.042360][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.042477][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1353.042621][   T44]  do_umount (fs/namespace.c:1954)
[ 1353.042718][   T44]  path_umount (fs/namespace.c:2035)
[ 1353.042832][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1353.042944][   T44]  __x64_sys_umount (fs/namespace.c:2055 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1353.043099][   T44]  ? path_umount (fs/namespace.c:2058)
[ 1353.043213][   T44]  ? switch_fpu_return (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 ./include/linux/thread_info.h:102 arch/x86/kernel/fpu/context.h:79 arch/x86/kernel/fpu/core.c:858)
[ 1353.043329][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1353.043452][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1353.043612][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1353.043724][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1353.043849][   T44] RIP: 0033:0x7f98acf0e11b
[ 1353.043961][   T44] RSP: 002b:00007ffffc4d00f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 1353.044155][   T44] RAX: ffffffffffffffda RBX: 00007ffffc4d45b1 RCX: 00007f98acf0e11b
[ 1353.044302][   T44] RDX: 00000000004728bd RSI: 0000000000000002 RDI: 000000000047967b
[ 1353.044481][   T44] RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
[ 1353.044623][   T44] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[ 1353.044765][   T44] R13: 0000000000000065 R14: 00007ffffc4d45bc R15: 00007ffffc4d35e8
| [ 1356.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1356.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1356.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1356.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 1356.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1356.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1356.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1356.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1356.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1356.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1356.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1356.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1356.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1356.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1356.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1356.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1356.385151][    C3] PKRU: 55555554
[ 1356.385151][    C3] Call Trace:
[ 1356.385155][    C3]  <TASK>
[ 1356.385158][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1356.385164][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1356.385166][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1356.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1356.385173][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1356.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1356.385178][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1356.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1356.385184][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1356.385185][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1356.385187][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1356.385190][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1356.385192][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1356.385194][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1356.385196][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1356.385198][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1356.385202][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1356.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1356.385206][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1356.385208][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1356.385210][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1356.385213][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1356.385216][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1356.385218][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1356.385222][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1356.385224][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1356.385226][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1356.385228][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1356.385231][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1356.385232][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1356.385235][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1356.385236][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1356.385239][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1356.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1356.385242][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1356.385245][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1356.385246][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1356.385248][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1356.385249][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1356.385251][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1356.385253][    C3]  vfs_write (fs/read_write.c:686)
[ 1356.385256][    C3]  ksys_write (fs/read_write.c:739)
[ 1356.385257][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1356.385259][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1356.385261][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1356.385265][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1356.385268][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1356.385272][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1356.385274][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1356.385275][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1356.385276][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1356.385277][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1356.385278][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1356.385278][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1360.712073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1360.712292][    C3] rcu: 3-....: (415867 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=92888
| [ 1360.712493][    C3] rcu: (t=416020 jiffies g=527745 q=14143 ncpus=4)
| [ 1360.712668][    C3] Tainted: [L]=SOFTLOCKUP
[ 1360.712669][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1360.712671][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1360.712680][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1360.712682][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1360.712685][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1360.712686][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1360.712687][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1360.712688][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1360.712689][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1360.712691][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1360.712695][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1360.712696][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1360.712696][    C3] PKRU: 55555554
[ 1360.712697][    C3] Call Trace:
[ 1360.712698][    C3]  <TASK>
[ 1360.712699][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1360.712704][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1360.712706][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1360.712710][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1360.712714][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1360.712715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1360.712719][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1360.712721][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1360.712723][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1360.712725][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1360.712727][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1360.712730][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1360.712732][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1360.712734][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1360.712736][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1360.712738][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1360.712742][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1360.712744][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1360.712746][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1360.712748][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1360.712749][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1360.712752][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1360.712755][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1360.712757][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1360.712760][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1360.712763][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1360.712764][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1360.712766][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1360.712769][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1360.712770][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1360.712773][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1360.712774][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1360.712776][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1360.712778][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1360.712780][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1360.712781][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1360.712783][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1360.712785][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1360.712786][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1360.712788][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1360.712790][    C3]  vfs_write (fs/read_write.c:686)
[ 1360.712792][    C3]  ksys_write (fs/read_write.c:739)
[ 1360.712793][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1360.712795][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1360.712797][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1360.712801][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1360.712803][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1360.712807][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1360.712808][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1360.712810][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1360.712811][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1360.712811][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1360.712812][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1360.712813][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1388.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1388.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1388.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1388.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 1388.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1388.385131][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1388.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1388.385136][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1388.385138][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1388.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1388.385140][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1388.385141][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1388.385142][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1388.385144][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1388.385148][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1388.385149][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1388.385150][    C3] PKRU: 55555554
[ 1388.385151][    C3] Call Trace:
[ 1388.385154][    C3]  <TASK>
[ 1388.385158][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1388.385163][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1388.385165][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1388.385168][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1388.385172][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1388.385174][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1388.385176][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1388.385179][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1388.385182][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1388.385184][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1388.385186][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1388.385189][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1388.385191][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1388.385193][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1388.385195][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1388.385197][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1388.385201][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1388.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1388.385205][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1388.385207][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1388.385209][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1388.385213][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1388.385216][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1388.385217][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1388.385221][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1388.385224][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1388.385225][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1388.385227][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1388.385230][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1388.385231][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1388.385234][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1388.385235][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1388.385237][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1388.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1388.385241][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1388.385243][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1388.385245][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1388.385246][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1388.385248][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1388.385249][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1388.385252][    C3]  vfs_write (fs/read_write.c:686)
[ 1388.385254][    C3]  ksys_write (fs/read_write.c:739)
[ 1388.385256][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1388.385258][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1388.385260][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1388.385263][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1388.385267][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1388.385270][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1388.385271][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1388.385273][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1388.385274][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1388.385275][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1388.385275][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1388.385276][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1402.180479][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1402.180651][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1402.180871][    C3] NMI backtrace for cpu 3
| [ 1402.180888][    C3] Tainted: [L]=SOFTLOCKUP
[ 1402.180889][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1402.180891][    C3] RIP: 0010:kasan_check_range (./include/linux/kasan.h:65 mm/kasan/generic.c:141 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 1402.180900][    C3] Code: 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff 48 39 c7 0f 82 d1 00 00 00 4c 8d 4c 37 ff 48 89 f9 4c 8d 74 37 ff <48> b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	00 ff                	add    %bh,%bh
   8:	eb 0a                	jmp    0x14
   a:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  11:	80 ff ff 
  14:	48 39 c7             	cmp    %rax,%rdi
  17:	0f 82 d1 00 00 00    	jb     0xee
  1d:	4c 8d 4c 37 ff       	lea    -0x1(%rdi,%rsi,1),%r9
  22:	48 89 f9             	mov    %rdi,%rcx
  25:	4c 8d 74 37 ff       	lea    -0x1(%rdi,%rsi,1),%r14
  2a:*	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax		<-- trapping instruction
  31:	fc ff df 
  34:	49 c1 e9 03          	shr    $0x3,%r9
  38:	48 c1 e9 03          	shr    $0x3,%rcx
  3c:	4e                   	rex.WRX
  3d:	8d                   	.byte 0x8d
  3e:	54                   	push   %rsp
  3f:	08                   	.byte 0x8

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df 
   a:	49 c1 e9 03          	shr    $0x3,%r9
   e:	48 c1 e9 03          	shr    $0x3,%rcx
  12:	4e                   	rex.WRX
  13:	8d                   	.byte 0x8d
  14:	54                   	push   %rsp
  15:	08                   	.byte 0x8
[ 1402.180901][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000206
[ 1402.180905][    C3] RAX: ff00000000000000 RBX: ff110000110b8b48 RCX: ff110000110b8b48
[ 1402.180906][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1402.180907][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ff110000110b8b4b
[ 1402.180908][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1402.180909][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 1402.180912][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1402.180915][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1402.180916][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1402.180917][    C3] PKRU: 55555554
[ 1402.180918][    C3] Call Trace:
[ 1402.180920][    C3]  <TASK>
[ 1402.180921][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 1402.180927][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1402.180931][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1402.180933][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1402.180938][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1402.180941][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1402.180943][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1402.180947][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1402.180949][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1402.180952][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1402.180954][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1402.180956][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1402.180959][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1402.180961][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1402.180962][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1402.180964][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1402.180967][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1402.180971][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1402.180973][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1402.180975][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1402.180977][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1402.180979][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1402.180982][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1402.180985][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1402.180987][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1402.180990][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1402.180992][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1402.180994][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1402.180996][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1402.180999][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1402.181000][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1402.181003][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1402.181004][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1402.181006][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1402.181008][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1402.181010][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1402.181012][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1402.181014][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1402.181015][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1402.181017][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1402.181018][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1402.181021][    C3]  vfs_write (fs/read_write.c:686)
[ 1402.181023][    C3]  ksys_write (fs/read_write.c:739)
[ 1402.181025][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1402.181027][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1402.181029][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1402.181033][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1402.181036][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1402.181039][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1402.181040][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1402.181042][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1402.181043][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1402.181043][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1402.181044][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1402.181045][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1428.385118][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1428.385120][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1428.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1428.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 1428.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1428.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1428.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1428.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1428.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1428.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1428.385145][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1428.385146][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1428.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1428.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1428.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1428.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1428.385154][    C3] PKRU: 55555554
[ 1428.385155][    C3] Call Trace:
[ 1428.385159][    C3]  <TASK>
[ 1428.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1428.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1428.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1428.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1428.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1428.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1428.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1428.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1428.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1428.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1428.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1428.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1428.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1428.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1428.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1428.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1428.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1428.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1428.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1428.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1428.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1428.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1428.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1428.385224][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1428.385227][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1428.385230][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1428.385231][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1428.385233][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1428.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1428.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1428.385240][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1428.385242][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1428.385244][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1428.385246][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1428.385247][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1428.385250][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1428.385252][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1428.385253][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1428.385255][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1428.385256][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1428.385259][    C3]  vfs_write (fs/read_write.c:686)
[ 1428.385261][    C3]  ksys_write (fs/read_write.c:739)
[ 1428.385263][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1428.385265][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1428.385267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1428.385271][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1428.385274][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1428.385279][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1428.385280][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1428.385282][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1428.385283][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1428.385283][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1428.385284][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1428.385285][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1438.715074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1438.715393][    C3] rcu: 3-....: (493838 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=110514
| [ 1438.715640][    C3] rcu: (t=494023 jiffies g=527745 q=15652 ncpus=4)
| [ 1438.715798][    C3] Tainted: [L]=SOFTLOCKUP
[ 1438.715799][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1438.715801][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1438.715814][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1438.715816][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1438.715819][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1438.715821][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1438.715822][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1438.715823][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1438.715823][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1438.715826][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1438.715829][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1438.715830][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1438.715831][    C3] PKRU: 55555554
[ 1438.715832][    C3] Call Trace:
[ 1438.715833][    C3]  <TASK>
[ 1438.715834][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1438.715839][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1438.715841][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1438.715845][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1438.715848][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1438.715850][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1438.715853][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1438.715855][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1438.715858][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1438.715860][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1438.715862][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1438.715864][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1438.715867][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1438.715868][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1438.715870][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1438.715872][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1438.715877][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1438.715878][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1438.715880][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1438.715883][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1438.715884][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1438.715887][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1438.715890][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1438.715892][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1438.715896][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1438.715898][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1438.715900][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1438.715902][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1438.715904][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1438.715905][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1438.715908][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1438.715909][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1438.715912][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1438.715913][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1438.715915][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1438.715917][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1438.715918][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1438.715920][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1438.715921][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1438.715923][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1438.715925][    C3]  vfs_write (fs/read_write.c:686)
[ 1438.715927][    C3]  ksys_write (fs/read_write.c:739)
[ 1438.715929][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1438.715930][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1438.715933][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1438.715936][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1438.715938][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1438.715942][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1438.715943][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1438.715944][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1438.715945][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1438.715946][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1438.715947][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1438.715947][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1464.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1464.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1464.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1464.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 1464.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1464.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1464.385136][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1464.385138][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1464.385140][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1464.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1464.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1464.385143][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1464.385144][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1464.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1464.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1464.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1464.385151][    C3] PKRU: 55555554
[ 1464.385152][    C3] Call Trace:
[ 1464.385156][    C3]  <TASK>
[ 1464.385160][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1464.385165][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1464.385167][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1464.385171][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1464.385175][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1464.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1464.385179][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1464.385182][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1464.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1464.385187][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1464.385189][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1464.385191][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1464.385193][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1464.385195][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1464.385197][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1464.385199][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1464.385204][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1464.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1464.385207][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1464.385209][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1464.385211][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1464.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1464.385218][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1464.385220][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1464.385223][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1464.385226][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1464.385227][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1464.385229][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1464.385232][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1464.385233][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1464.385236][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1464.385237][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1464.385240][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1464.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1464.385243][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1464.385245][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1464.385247][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1464.385249][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1464.385250][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1464.385251][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1464.385254][    C3]  vfs_write (fs/read_write.c:686)
[ 1464.385256][    C3]  ksys_write (fs/read_write.c:739)
[ 1464.385258][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1464.385260][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1464.385262][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1464.385265][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1464.385269][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1464.385273][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1464.385274][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1464.385276][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1464.385277][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1464.385278][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1464.385279][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1464.385279][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c




| [ 1464.385282][    C3]  </TASK>
[ 1475.909154][   T44] INFO: task mptcp_connect:20849 blocked for more than 491 seconds.
[ 1475.909452][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1475.909670][   T44]       Blocked by coredump.
[ 1475.909852][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1475.910106][   T44] task:mptcp_connect   state:D stack:25744 pid:20849 tgid:20849 ppid:201    task_flags:0x40010c flags:0x00080001
[ 1475.910392][   T44] Call Trace:
[ 1475.910497][   T44]  <TASK>
[ 1475.910586][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1475.910719][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1475.910843][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1475.911007][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1475.911171][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1475.911313][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.911466][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.911596][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1475.911720][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1475.911864][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1475.912023][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.912182][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1475.912293][   T44]  synchronize_rcu_expedited (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:972 (discriminator 2))
[ 1475.912427][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1475.912589][   T44]  ? complete (kernel/sched/wait.c:402)
[ 1475.912700][   T44]  ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1) ./include/trace/events/rcu.h:537 (discriminator 1))
[ 1475.912828][   T44]  ? sync_rcu_exp_select_cpus (kernel/rcu/tree_exp.h:488)
[ 1475.912949][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1475.913143][   T44]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1475.913260][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1475.913380][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1475.913491][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1475.913635][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1475.913757][   T44]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1475.913867][   T44]  free_nsproxy (kernel/nsproxy.c:189)
[ 1475.913986][   T44]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:966)
[ 1475.914101][   T44]  ? stack_not_used (kernel/exit.c:898)
[ 1475.914212][   T44]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1338)
[ 1475.914348][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.914462][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.914603][   T44]  do_group_exit (kernel/exit.c:1088)
[ 1475.914714][   T44]  __x64_sys_exit_group (kernel/exit.c:1116)
[ 1475.914824][   T44]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[ 1475.914935][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1475.915098][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1475.915226][   T44] RIP: 0033:0x7f88e7533008
[ 1475.915345][   T44] RSP: 002b:00007ffcb9b5b248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[ 1475.915490][   T44] RAX: ffffffffffffffda RBX: 00007f88e765efc8 RCX: 00007f88e7533008
[ 1475.915667][   T44] RDX: 00007f88e7470a48 RSI: ffffffffffffffa0 RDI: 0000000000000002
[ 1475.915808][   T44] RBP: 00007ffcb9b5b2a0 R08: 0000000000000000 R09: 0000000000000000
[ 1475.915995][   T44] R10: 00007ffcb9b5b0e0 R11: 0000000000000202 R12: 0000000000000001
[ 1475.916150][   T44] R13: 0000000000000002 R14: 00007f88e765d680 R15: 00007f88e765efe0




| [ 1475.916294][   T44]  </TASK>
[ 1475.916420][   T44] INFO: task ip:20858 blocked for more than 368 seconds.
[ 1475.916541][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1475.916683][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1475.916862][   T44] task:ip              state:D stack:25336 pid:20858 tgid:20858 ppid:20856  task_flags:0x400100 flags:0x00080001
[ 1475.917055][   T44] Call Trace:
[ 1475.917161][   T44]  <TASK>
[ 1475.917270][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1475.917385][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1475.917501][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1475.917612][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.917752][   T44]  ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 33))
[ 1475.917861][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.917977][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1475.918101][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.918244][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1475.918355][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1475.918464][   T44]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[ 1475.918580][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1475.918728][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.918840][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1475.918942][   T44]  schedule_preempt_disabled (kernel/sched/core.c:7084)
[ 1475.919057][   T44]  __mutex_lock (kernel/locking/mutex.c:183 kernel/locking/mutex.c:678 kernel/locking/mutex.c:760)
[ 1475.919218][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1475.919329][   T44]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[ 1475.919451][   T44]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:27)
[ 1475.919569][   T44]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:91)
[ 1475.919681][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.919824][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1475.919934][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.920050][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1475.920204][   T44]  exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1475.920314][   T44]  ? stack_depot_save_flags (lib/stackdepot.c:601 (discriminator 1) lib/stackdepot.c:668 (discriminator 1))
[ 1475.920431][   T44]  ? trace_rcu_exp_funnel_lock (kernel/rcu/tree_exp.h:302)
[ 1475.920561][   T44]  ? kasan_save_stack (mm/kasan/common.c:58)
[ 1475.920704][   T44]  ? kasan_save_track (mm/kasan/common.c:69 (discriminator 1) mm/kasan/common.c:78 (discriminator 1))
[ 1475.920814][   T44]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1475.920925][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1475.921037][   T44]  ? __x64_sys_umount (fs/namespace.c:2053 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1475.921192][   T44]  synchronize_rcu_expedited (kernel/rcu/tree_exp.h:957 (discriminator 1))
[ 1475.921303][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1475.921418][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1475.921528][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1475.921670][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1475.921782][   T44]  ? umount_tree (fs/namespace.c:1813)
[ 1475.921893][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1475.922007][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1475.922132][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.922243][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1475.922356][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.922466][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1475.922608][   T44]  do_umount (fs/namespace.c:1954)
[ 1475.922704][   T44]  path_umount (fs/namespace.c:2035)
[ 1475.922815][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1475.922929][   T44]  __x64_sys_umount (fs/namespace.c:2055 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1475.923047][   T44]  ? path_umount (fs/namespace.c:2058)
[ 1475.923168][   T44]  ? switch_fpu_return (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 ./include/linux/thread_info.h:102 arch/x86/kernel/fpu/context.h:79 arch/x86/kernel/fpu/core.c:858)
[ 1475.923285][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1475.923396][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1475.923555][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1475.923673][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1475.923805][   T44] RIP: 0033:0x7f98acf0e11b
[ 1475.923917][   T44] RSP: 002b:00007ffffc4d00f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 1475.924115][   T44] RAX: ffffffffffffffda RBX: 00007ffffc4d45b1 RCX: 00007f98acf0e11b
[ 1475.924256][   T44] RDX: 00000000004728bd RSI: 0000000000000002 RDI: 000000000047967b
[ 1475.924400][   T44] RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
[ 1475.924571][   T44] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[ 1475.924712][   T44] R13: 0000000000000065 R14: 00007ffffc4d45bc R15: 00007ffffc4d35e8
| [ 1492.385103][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1492.385105][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1492.385108][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1492.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 1492.385116][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1492.385117][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1492.385120][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1492.385122][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1492.385123][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1492.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1492.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1492.385126][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1492.385127][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1492.385129][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1492.385132][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1492.385133][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1492.385139][    C3] PKRU: 55555554
[ 1492.385139][    C3] Call Trace:
[ 1492.385142][    C3]  <TASK>
[ 1492.385145][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1492.385150][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1492.385152][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1492.385156][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1492.385159][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1492.385161][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1492.385163][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1492.385166][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1492.385169][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1492.385170][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1492.385173][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1492.385175][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1492.385177][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1492.385179][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1492.385181][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1492.385183][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1492.385186][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1492.385188][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1492.385190][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1492.385192][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1492.385193][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1492.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1492.385199][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1492.385201][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1492.385204][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1492.385206][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1492.385207][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1492.385209][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1492.385211][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1492.385212][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1492.385215][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1492.385216][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1492.385219][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1492.385220][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1492.385222][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1492.385224][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1492.385225][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1492.385227][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1492.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1492.385230][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1492.385232][    C3]  vfs_write (fs/read_write.c:686)
[ 1492.385234][    C3]  ksys_write (fs/read_write.c:739)
[ 1492.385236][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1492.385238][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1492.385240][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1492.385243][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1492.385246][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1492.385249][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1492.385250][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1492.385252][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1492.385253][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1492.385253][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1492.385254][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1492.385254][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1500.485469][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1500.485664][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1500.485875][    C3] NMI backtrace for cpu 3
| [ 1500.485883][    C3] Tainted: [L]=SOFTLOCKUP
[ 1500.485883][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1500.485885][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1500.485888][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1500.485890][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1500.485892][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1500.485893][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1500.485893][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1500.485894][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1500.485895][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1500.485897][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1500.485900][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1500.485901][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1500.485901][    C3] PKRU: 55555554
[ 1500.485902][    C3] Call Trace:
[ 1500.485904][    C3]  <TASK>
[ 1500.485906][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1500.485909][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1500.485911][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1500.485914][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1500.485916][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1500.485918][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1500.485920][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1500.485923][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1500.485925][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1500.485927][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1500.485929][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1500.485932][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1500.485934][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1500.485935][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1500.485937][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1500.485939][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1500.485942][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1500.485944][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1500.485946][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1500.485947][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1500.485949][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1500.485952][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1500.485954][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1500.485956][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1500.485958][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1500.485959][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1500.485961][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1500.485963][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1500.485964][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1500.485966][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1500.485968][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1500.485970][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1500.485971][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1500.485973][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1500.485974][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1500.485976][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1500.485978][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1500.485979][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1500.485981][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1500.485982][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1500.485984][    C3]  vfs_write (fs/read_write.c:686)
[ 1500.485986][    C3]  ksys_write (fs/read_write.c:739)
[ 1500.485988][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1500.485990][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1500.485992][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1500.485995][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1500.485997][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1500.485999][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1500.486000][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1500.486001][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1500.486002][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1500.486003][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1500.486003][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1500.486004][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1516.719073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1516.719337][    C3] rcu: 3-....: (571809 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=127897
| [ 1516.719588][    C3] rcu: (t=572027 jiffies g=527745 q=17686 ncpus=4)
| [ 1516.719739][    C3] Tainted: [L]=SOFTLOCKUP
[ 1516.719740][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1516.719742][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1516.719747][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1516.719748][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1516.719751][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1516.719752][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1516.719753][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1516.719754][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1516.719755][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1516.719757][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1516.719760][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1516.719761][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1516.719762][    C3] PKRU: 55555554
[ 1516.719763][    C3] Call Trace:
[ 1516.719764][    C3]  <TASK>
[ 1516.719765][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1516.719767][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1516.719770][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1516.719772][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1516.719774][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1516.719776][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1516.719778][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1516.719780][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1516.719783][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1516.719785][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1516.719787][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1516.719789][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1516.719791][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1516.719793][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1516.719795][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1516.719796][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1516.719799][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1516.719801][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1516.719803][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1516.719805][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1516.719806][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1516.719809][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1516.719811][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1516.719813][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1516.719815][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1516.719816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1516.719818][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1516.719819][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1516.719821][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1516.719822][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1516.719825][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1516.719826][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1516.719827][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1516.719829][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1516.719831][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1516.719832][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1516.719834][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1516.719835][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1516.719837][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1516.719838][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1516.719841][    C3]  vfs_write (fs/read_write.c:686)
[ 1516.719842][    C3]  ksys_write (fs/read_write.c:739)
[ 1516.719844][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1516.719846][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1516.719848][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1516.719850][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1516.719852][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1516.719854][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1516.719855][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1516.719856][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1516.719857][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1516.719858][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1516.719859][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1516.719859][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1544.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1544.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1544.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1544.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 1544.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1544.385106][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1544.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1544.385110][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1544.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1544.385112][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1544.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1544.385114][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1544.385114][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1544.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1544.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1544.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1544.385122][    C3] PKRU: 55555554
[ 1544.385122][    C3] Call Trace:
[ 1544.385124][    C3]  <TASK>
[ 1544.385126][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1544.385129][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1544.385131][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1544.385133][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1544.385135][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1544.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1544.385139][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1544.385141][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1544.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1544.385146][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1544.385148][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1544.385150][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1544.385153][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1544.385154][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1544.385156][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1544.385158][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1544.385161][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1544.385162][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1544.385164][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1544.385166][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1544.385168][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1544.385171][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1544.385173][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1544.385175][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1544.385177][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1544.385178][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1544.385180][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1544.385182][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1544.385183][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1544.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1544.385187][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1544.385188][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1544.385190][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1544.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1544.385193][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1544.385195][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1544.385196][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1544.385198][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1544.385199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1544.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1544.385203][    C3]  vfs_write (fs/read_write.c:686)
[ 1544.385205][    C3]  ksys_write (fs/read_write.c:739)
[ 1544.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1544.385209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1544.385211][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1544.385213][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1544.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1544.385217][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1544.385218][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1544.385220][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1544.385220][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1544.385221][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1544.385222][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1544.385222][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1572.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1572.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1572.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1572.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 1572.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1572.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1572.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1572.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1572.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1572.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1572.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1572.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1572.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1572.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1572.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1572.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1572.385115][    C3] PKRU: 55555554
[ 1572.385116][    C3] Call Trace:
[ 1572.385118][    C3]  <TASK>
[ 1572.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1572.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1572.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1572.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1572.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1572.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1572.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1572.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1572.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1572.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1572.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1572.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1572.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1572.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1572.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1572.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1572.385155][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1572.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1572.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1572.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1572.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1572.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1572.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1572.385169][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1572.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1572.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1572.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1572.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1572.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1572.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1572.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1572.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1572.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1572.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1572.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1572.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1572.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1572.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1572.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1572.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1572.385197][    C3]  vfs_write (fs/read_write.c:686)
[ 1572.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 1572.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1572.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1572.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1572.385206][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1572.385208][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1572.385210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1572.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1572.385212][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1572.385213][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1572.385213][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1572.385214][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1572.385214][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1594.722072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1594.722295][    C3] rcu: 3-....: (649788 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=145149
| [ 1594.722570][    C3] rcu: (t=650030 jiffies g=527745 q=18826 ncpus=4)
| [ 1594.722709][    C3] Tainted: [L]=SOFTLOCKUP
[ 1594.722710][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1594.722711][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1594.722715][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1594.722716][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1594.722718][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1594.722719][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1594.722719][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1594.722720][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1594.722721][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1594.722723][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1594.722726][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1594.722726][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1594.722727][    C3] PKRU: 55555554
[ 1594.722728][    C3] Call Trace:
[ 1594.722729][    C3]  <TASK>
[ 1594.722730][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1594.722732][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1594.722734][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1594.722737][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1594.722739][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1594.722740][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1594.722743][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1594.722745][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1594.722748][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1594.722749][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1594.722751][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1594.722754][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1594.722756][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1594.722758][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1594.722759][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1594.722761][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1594.722764][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1594.722766][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1594.722768][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1594.722770][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1594.722771][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1594.722774][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1594.722777][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1594.722778][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1594.722780][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1594.722782][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1594.722783][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1594.722785][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1594.722786][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1594.722788][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1594.722790][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1594.722792][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1594.722793][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1594.722795][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1594.722796][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1594.722798][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1594.722799][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1594.722801][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1594.722803][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1594.722804][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1594.722806][    C3]  vfs_write (fs/read_write.c:686)
[ 1594.722808][    C3]  ksys_write (fs/read_write.c:739)
[ 1594.722810][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1594.722812][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1594.722814][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1594.722816][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1594.722818][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1594.722819][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1594.722820][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1594.722822][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1594.722822][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1594.722823][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1594.722824][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1594.722824][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1598.788506][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1598.788684][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1598.788883][    C3] NMI backtrace for cpu 3
| [ 1598.788889][    C3] Tainted: [L]=SOFTLOCKUP
[ 1598.788890][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1598.788891][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1598.788893][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1598.788894][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1598.788896][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1598.788897][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1598.788897][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1598.788898][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1598.788899][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1598.788900][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1598.788903][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1598.788904][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1598.788904][    C3] PKRU: 55555554
[ 1598.788905][    C3] Call Trace:
[ 1598.788906][    C3]  <TASK>
[ 1598.788907][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1598.788909][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1598.788911][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1598.788914][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1598.788916][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1598.788917][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1598.788920][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1598.788922][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1598.788925][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1598.788926][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1598.788929][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1598.788931][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1598.788933][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1598.788935][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1598.788937][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1598.788939][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1598.788941][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1598.788943][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1598.788945][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1598.788947][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1598.788949][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1598.788952][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1598.788954][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1598.788955][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1598.788957][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1598.788959][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1598.788960][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1598.788962][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1598.788963][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1598.788965][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1598.788967][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1598.788969][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1598.788970][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1598.788972][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1598.788973][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1598.788975][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1598.788977][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1598.788978][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1598.788980][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1598.788981][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1598.788984][    C3]  vfs_write (fs/read_write.c:686)
[ 1598.788986][    C3]  ksys_write (fs/read_write.c:739)
[ 1598.788987][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1598.788989][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.788991][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1598.788994][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1598.788995][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1598.788997][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1598.788998][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1598.788999][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1598.788999][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1598.789000][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1598.789001][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1598.789001][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c




| [ 1598.789003][    C3]  </TASK>
[ 1598.790241][   T44] INFO: task mptcp_connect:20849 blocked for more than 614 seconds.
[ 1598.799432][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1598.799586][   T44]       Blocked by coredump.
[ 1598.799703][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1598.799900][   T44] task:mptcp_connect   state:D stack:25744 pid:20849 tgid:20849 ppid:201    task_flags:0x40010c flags:0x00080001
[ 1598.800131][   T44] Call Trace:
[ 1598.800273][   T44]  <TASK>
[ 1598.800369][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1598.800498][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1598.800621][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1598.800744][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1598.800916][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1598.801036][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.801171][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.801296][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1598.801453][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1598.801590][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1598.801711][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.801866][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1598.801970][   T44]  synchronize_rcu_expedited (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:972 (discriminator 2))
[ 1598.802105][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1598.802226][   T44]  ? complete (kernel/sched/wait.c:402)
[ 1598.802341][   T44]  ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1) ./include/trace/events/rcu.h:537 (discriminator 1))
[ 1598.802493][   T44]  ? sync_rcu_exp_select_cpus (kernel/rcu/tree_exp.h:488)
[ 1598.802613][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1598.802756][   T44]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1598.802877][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1598.803033][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1598.803167][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1598.803299][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1598.803420][   T44]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1598.803574][   T44]  free_nsproxy (kernel/nsproxy.c:189)
[ 1598.803696][   T44]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:966)
[ 1598.803801][   T44]  ? stack_not_used (kernel/exit.c:898)
[ 1598.803922][   T44]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1338)
[ 1598.804104][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.804224][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.804359][   T44]  do_group_exit (kernel/exit.c:1088)
[ 1598.804487][   T44]  __x64_sys_exit_group (kernel/exit.c:1116)
[ 1598.804639][   T44]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[ 1598.804760][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1598.804883][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1598.805052][   T44] RIP: 0033:0x7f88e7533008
[ 1598.805190][   T44] RSP: 002b:00007ffcb9b5b248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[ 1598.805364][   T44] RAX: ffffffffffffffda RBX: 00007f88e765efc8 RCX: 00007f88e7533008
[ 1598.805554][   T44] RDX: 00007f88e7470a48 RSI: ffffffffffffffa0 RDI: 0000000000000002
[ 1598.805713][   T44] RBP: 00007ffcb9b5b2a0 R08: 0000000000000000 R09: 0000000000000000
[ 1598.805872][   T44] R10: 00007ffcb9b5b0e0 R11: 0000000000000202 R12: 0000000000000001
[ 1598.806083][   T44] R13: 0000000000000002 R14: 00007f88e765d680 R15: 00007f88e765efe0




| [ 1598.806246][   T44]  </TASK>
[ 1598.806357][   T44] INFO: task ip:20858 blocked for more than 491 seconds.
[ 1598.806519][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1598.806670][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1598.806841][   T44] task:ip              state:D stack:25336 pid:20858 tgid:20858 ppid:20856  task_flags:0x400100 flags:0x00080001
[ 1598.807099][   T44] Call Trace:
[ 1598.807200][   T44]  <TASK>
[ 1598.807288][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1598.807412][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1598.807567][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1598.807689][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.807810][   T44]  ? trace_lock_release (./include/trace/events/lock.h:69 (discriminator 33))
[ 1598.807933][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.808097][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1598.808219][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.808347][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1598.808472][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1598.808622][   T44]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[ 1598.808743][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1598.808863][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.808987][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1598.809133][   T44]  schedule_preempt_disabled (kernel/sched/core.c:7084)
[ 1598.809254][   T44]  __mutex_lock (kernel/locking/mutex.c:183 kernel/locking/mutex.c:678 kernel/locking/mutex.c:760)
[ 1598.809385][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1598.809507][   T44]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[ 1598.809658][   T44]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:27)
[ 1598.809780][   T44]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:91)
[ 1598.809901][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.810027][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1598.810168][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.810296][   T44]  ? exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1598.810416][   T44]  exp_funnel_lock (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:345 (discriminator 2))
[ 1598.810536][   T44]  ? stack_depot_save_flags (lib/stackdepot.c:601 (discriminator 1) lib/stackdepot.c:668 (discriminator 1))
[ 1598.810692][   T44]  ? trace_rcu_exp_funnel_lock (kernel/rcu/tree_exp.h:302)
[ 1598.810831][   T44]  ? kasan_save_stack (mm/kasan/common.c:58)
[ 1598.810959][   T44]  ? kasan_save_track (mm/kasan/common.c:69 (discriminator 1) mm/kasan/common.c:78 (discriminator 1))
[ 1598.811093][   T44]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1598.811214][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1598.811341][   T44]  ? __x64_sys_umount (fs/namespace.c:2053 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1598.811463][   T44]  synchronize_rcu_expedited (kernel/rcu/tree_exp.h:957 (discriminator 1))
[ 1598.811585][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1598.811738][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1598.811862][   T44]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1598.811989][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1598.812159][   T44]  ? umount_tree (fs/namespace.c:1813)
[ 1598.812287][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1598.812410][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1598.812530][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.812653][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1598.812802][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.812921][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1598.813047][   T44]  do_umount (fs/namespace.c:1954)
[ 1598.813162][   T44]  path_umount (fs/namespace.c:2035)
[ 1598.813318][   T44]  ? user_path_at (fs/namei.c:3219)
[ 1598.813439][   T44]  __x64_sys_umount (fs/namespace.c:2055 fs/namespace.c:2060 fs/namespace.c:2058 fs/namespace.c:2058)
[ 1598.813564][   T44]  ? path_umount (fs/namespace.c:2058)
[ 1598.813684][   T44]  ? switch_fpu_return (./arch/x86/include/asm/bitops.h:75 ./include/asm-generic/bitops/instrumented-atomic.h:42 ./include/linux/thread_info.h:102 arch/x86/kernel/fpu/context.h:79 arch/x86/kernel/fpu/core.c:858)
[ 1598.813838][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1598.813958][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1598.814111][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1598.814233][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1598.814406][   T44] RIP: 0033:0x7f98acf0e11b
[ 1598.814528][   T44] RSP: 002b:00007ffffc4d00f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
[ 1598.814685][   T44] RAX: ffffffffffffffda RBX: 00007ffffc4d45b1 RCX: 00007f98acf0e11b
[ 1598.814876][   T44] RDX: 00000000004728bd RSI: 0000000000000002 RDI: 000000000047967b
[ 1598.815037][   T44] RBP: 0000000000000007 R08: 0000000000000000 R09: 0000000000000000
[ 1598.815242][   T44] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
[ 1598.815406][   T44] R13: 0000000000000065 R14: 00007ffffc4d45bc R15: 00007ffffc4d35e8
| [ 1624.385105][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1624.385107][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1624.385109][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1624.385117][    C3] Tainted: [L]=SOFTLOCKUP
[ 1624.385118][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1624.385119][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1624.385122][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1624.385124][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1624.385126][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1624.385127][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1624.385128][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1624.385129][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1624.385130][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1624.385132][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1624.385135][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1624.385135][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1624.385136][    C3] PKRU: 55555554
[ 1624.385137][    C3] Call Trace:
[ 1624.385139][    C3]  <TASK>
[ 1624.385141][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1624.385146][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1624.385148][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1624.385152][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1624.385156][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1624.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1624.385160][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1624.385162][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1624.385165][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1624.385167][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1624.385169][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1624.385172][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1624.385174][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1624.385175][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1624.385177][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1624.385180][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1624.385182][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1624.385184][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1624.385186][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1624.385188][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1624.385190][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1624.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1624.385196][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1624.385198][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1624.385200][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1624.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1624.385204][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1624.385206][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1624.385208][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1624.385209][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1624.385211][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1624.385213][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1624.385215][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1624.385217][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1624.385218][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1624.385220][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1624.385222][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1624.385224][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1624.385225][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1624.385226][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1624.385229][    C3]  vfs_write (fs/read_write.c:686)
[ 1624.385231][    C3]  ksys_write (fs/read_write.c:739)
[ 1624.385232][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1624.385234][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1624.385237][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1624.385240][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1624.385243][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1624.385245][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1624.385246][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1624.385248][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1624.385248][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1624.385249][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1624.385250][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1624.385250][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1652.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1652.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1652.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1652.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 1652.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1652.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1652.385105][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1652.385106][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1652.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1652.385108][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1652.385109][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1652.385110][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1652.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1652.385112][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1652.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1652.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1652.385117][    C3] PKRU: 55555554
[ 1652.385117][    C3] Call Trace:
[ 1652.385119][    C3]  <TASK>
[ 1652.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1652.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1652.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1652.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1652.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1652.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1652.385136][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1652.385138][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1652.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1652.385143][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1652.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1652.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1652.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1652.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1652.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1652.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1652.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1652.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1652.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1652.385164][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1652.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1652.385169][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1652.385171][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1652.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1652.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1652.385176][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1652.385178][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1652.385179][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1652.385181][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1652.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1652.385185][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1652.385186][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1652.385188][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1652.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1652.385191][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1652.385193][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1652.385194][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1652.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1652.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1652.385199][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1652.385201][    C3]  vfs_write (fs/read_write.c:686)
[ 1652.385203][    C3]  ksys_write (fs/read_write.c:739)
[ 1652.385205][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1652.385207][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1652.385209][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1652.385211][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1652.385214][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1652.385215][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1652.385216][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1652.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1652.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1652.385219][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1652.385219][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1652.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1672.725072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1672.725290][    C3] rcu: 3-....: (727766 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=162169
| [ 1672.725508][    C3] rcu: (t=728033 jiffies g=527745 q=20848 ncpus=4)
| [ 1672.725702][    C3] Tainted: [L]=SOFTLOCKUP
[ 1672.725702][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1672.725704][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1672.725707][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1672.725708][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1672.725710][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1672.725711][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1672.725712][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1672.725713][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1672.725713][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1672.725715][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1672.725718][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1672.725719][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1672.725720][    C3] PKRU: 55555554
[ 1672.725720][    C3] Call Trace:
[ 1672.725721][    C3]  <TASK>
[ 1672.725722][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1672.725724][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1672.725726][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1672.725729][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1672.725731][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1672.725732][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1672.725735][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1672.725737][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1672.725740][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1672.725742][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1672.725744][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1672.725746][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1672.725748][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1672.725750][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1672.725752][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1672.725754][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1672.725756][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1672.725758][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1672.725760][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1672.725762][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1672.725763][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1672.725766][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1672.725768][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1672.725770][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1672.725772][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1672.725774][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1672.725775][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1672.725777][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1672.725778][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1672.725779][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1672.725782][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1672.725783][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1672.725785][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1672.725787][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1672.725788][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1672.725790][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1672.725791][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1672.725793][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1672.725794][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1672.725796][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1672.725798][    C3]  vfs_write (fs/read_write.c:686)
[ 1672.725800][    C3]  ksys_write (fs/read_write.c:739)
[ 1672.725801][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1672.725803][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1672.725805][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1672.725808][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1672.725809][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1672.725811][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1672.725811][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1672.725813][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1672.725813][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1672.725814][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1672.725815][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1672.725815][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1697.093548][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1697.093722][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1697.093889][    C3] NMI backtrace for cpu 3
| [ 1697.093907][    C3] Tainted: [L]=SOFTLOCKUP
[ 1697.093908][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1697.093911][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1697.093920][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1697.093922][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1697.093926][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1697.093927][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1697.093928][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1697.093929][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1697.093930][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1697.093932][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1697.093935][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1697.093937][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1697.093938][    C3] PKRU: 55555554
[ 1697.093938][    C3] Call Trace:
[ 1697.093942][    C3]  <TASK>
[ 1697.093946][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1697.093951][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1697.093953][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1697.093957][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1697.093961][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1697.093963][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1697.093967][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1697.093970][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1697.093973][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1697.093974][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1697.093977][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1697.093979][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1697.093981][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1697.093987][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1697.093989][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1697.093991][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1697.093995][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1697.093997][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1697.093999][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1697.094001][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1697.094003][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1697.094006][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1697.094010][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1697.094011][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1697.094015][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1697.094017][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1697.094019][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1697.094021][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1697.094024][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1697.094025][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1697.094027][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1697.094029][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1697.094031][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1697.094033][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1697.094034][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1697.094037][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1697.094038][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1697.094040][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1697.094041][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1697.094042][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1697.094045][    C3]  vfs_write (fs/read_write.c:686)
[ 1697.094047][    C3]  ksys_write (fs/read_write.c:739)
[ 1697.094049][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1697.094051][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1697.094053][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1697.094057][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1697.094060][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1697.094064][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1697.094065][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1697.094066][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1697.094067][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1697.094068][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1697.094071][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1697.094072][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c




| [ 1697.094074][    C3]  </TASK>
[ 1721.668138][   T44] INFO: task mptcp_connect:20849 blocked for more than 737 seconds.
[ 1721.668476][   T44]       Tainted: G             L      6.18.0-rc6-virtme #1
[ 1721.668685][   T44]       Blocked by coredump.
[ 1721.668828][   T44] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1721.669090][   T44] task:mptcp_connect   state:D stack:25744 pid:20849 tgid:20849 ppid:201    task_flags:0x40010c flags:0x00080001
[ 1721.669364][   T44] Call Trace:
[ 1721.669494][   T44]  <TASK>
[ 1721.669632][   T44]  __schedule (kernel/sched/core.c:5328 kernel/sched/core.c:6929)
[ 1721.669783][   T44]  ? io_schedule_timeout (kernel/sched/core.c:6785)
[ 1721.669913][   T44]  ? do_raw_spin_lock (./arch/x86/include/asm/atomic.h:107 (discriminator 5) ./include/linux/atomic/atomic-arch-fallback.h:2170 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:1302 (discriminator 5) ./include/asm-generic/qspinlock.h:111 (discriminator 5) kernel/locking/spinlock_debug.c:116 (discriminator 5))
[ 1721.670045][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1721.670256][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1721.670396][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1721.670555][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1721.670684][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1721.670841][   T44]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 (discriminator 3) kernel/locking/spinlock.c:194 (discriminator 3))
[ 1721.670984][   T44]  ? lock_acquire (kernel/locking/lockdep.c:5833)
[ 1721.671125][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1721.671253][   T44]  schedule (kernel/sched/core.c:7012 kernel/sched/core.c:7026)
[ 1721.671396][   T44]  synchronize_rcu_expedited (kernel/rcu/rcu.h:156 (discriminator 2) kernel/rcu/tree_exp.h:67 (discriminator 2) kernel/rcu/tree_exp.h:281 (discriminator 2) kernel/rcu/tree_exp.h:972 (discriminator 2))
[ 1721.671527][   T44]  ? synchronize_rcu_normal (kernel/rcu/tree_exp.h:921)
[ 1721.671660][   T44]  ? complete (kernel/sched/wait.c:402)
[ 1721.671769][   T44]  ? trace_rcu_segcb_stats (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1) ./include/trace/events/rcu.h:537 (discriminator 1))
[ 1721.671924][   T44]  ? sync_rcu_exp_select_cpus (kernel/rcu/tree_exp.h:488)
[ 1721.672048][   T44]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33))
[ 1721.672209][   T44]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1721.672334][   T44]  namespace_unlock (fs/namespace.c:1711)
[ 1721.672498][   T44]  ? kern_unmount (fs/namespace.c:1675)
[ 1721.672628][   T44]  ? attach_mnt (fs/namespace.c:1762)
[ 1721.672753][   T44]  ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 33))
[ 1721.672875][   T44]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[ 1721.673031][   T44]  free_nsproxy (kernel/nsproxy.c:189)
[ 1721.673171][   T44]  do_exit (./include/linux/task_work.h:40 kernel/exit.c:966)
[ 1721.673278][   T44]  ? stack_not_used (kernel/exit.c:898)
[ 1721.673401][   T44]  ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1338)
[ 1721.673580][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1721.673710][   T44]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1721.673833][   T44]  do_group_exit (kernel/exit.c:1088)
[ 1721.673960][   T44]  __x64_sys_exit_group (kernel/exit.c:1116)
[ 1721.674126][   T44]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[ 1721.674251][   T44]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1721.674377][   T44]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1721.674523][   T44] RIP: 0033:0x7f88e7533008
[ 1721.674685][   T44] RSP: 002b:00007ffcb9b5b248 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7
[ 1721.674855][   T44] RAX: ffffffffffffffda RBX: 00007f88e765efc8 RCX: 00007f88e7533008
[ 1721.675016][   T44] RDX: 00007f88e7470a48 RSI: ffffffffffffffa0 RDI: 0000000000000002
[ 1721.675222][   T44] RBP: 00007ffcb9b5b2a0 R08: 0000000000000000 R09: 0000000000000000
[ 1721.675383][   T44] R10: 00007ffcb9b5b0e0 R11: 0000000000000202 R12: 0000000000000001
[ 1721.675588][   T44] R13: 0000000000000002 R14: 00007f88e765d680 R15: 00007f88e765efe0
| [ 1724.385111][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1724.385112][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1724.385115][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1724.385123][    C3] Tainted: [L]=SOFTLOCKUP
[ 1724.385124][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1724.385126][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1724.385129][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1724.385131][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1724.385133][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1724.385134][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1724.385135][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1724.385135][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1724.385136][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1724.385139][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1724.385142][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1724.385143][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1724.385144][    C3] PKRU: 55555554
[ 1724.385145][    C3] Call Trace:
[ 1724.385147][    C3]  <TASK>
[ 1724.385150][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1724.385156][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1724.385158][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1724.385162][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1724.385165][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1724.385167][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1724.385169][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1724.385172][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1724.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1724.385176][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1724.385179][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1724.385181][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1724.385184][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1724.385185][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1724.385187][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1724.385190][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1724.385194][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1724.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1724.385198][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1724.385200][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1724.385202][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1724.385205][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1724.385208][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1724.385210][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1724.385213][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1724.385215][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1724.385217][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1724.385219][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1724.385222][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1724.385223][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1724.385225][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1724.385227][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1724.385229][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1724.385231][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1724.385233][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1724.385235][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1724.385236][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1724.385238][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1724.385240][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1724.385241][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1724.385243][    C3]  vfs_write (fs/read_write.c:686)
[ 1724.385246][    C3]  ksys_write (fs/read_write.c:739)
[ 1724.385248][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1724.385249][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1724.385252][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1724.385255][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1724.385258][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1724.385261][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1724.385262][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1724.385264][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1724.385265][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1724.385265][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1724.385266][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1724.385266][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1750.728073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1750.728324][    C3] rcu: 3-....: (805745 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=179222
| [ 1750.728542][    C3] rcu: (t=806036 jiffies g=527745 q=22188 ncpus=4)
| [ 1750.728731][    C3] Tainted: [L]=SOFTLOCKUP
[ 1750.728733][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1750.728734][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1750.728742][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1750.728743][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1750.728747][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1750.728748][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1750.728749][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1750.728750][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1750.728751][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1750.728753][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1750.728756][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1750.728757][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1750.728758][    C3] PKRU: 55555554
[ 1750.728759][    C3] Call Trace:
[ 1750.728760][    C3]  <TASK>
[ 1750.728760][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1750.728765][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1750.728767][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1750.728771][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1750.728774][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1750.728776][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1750.728779][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1750.728781][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1750.728784][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1750.728786][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1750.728788][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1750.728790][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1750.728792][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1750.728794][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1750.728796][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1750.728798][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1750.728802][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1750.728804][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1750.728806][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1750.728808][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1750.728809][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1750.728812][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1750.728815][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1750.728817][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1750.728820][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1750.728822][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1750.728824][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1750.728826][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1750.728828][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1750.728829][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1750.728832][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1750.728833][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1750.728835][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1750.728837][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1750.728839][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1750.728840][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1750.728842][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1750.728844][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1750.728845][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1750.728846][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1750.728849][    C3]  vfs_write (fs/read_write.c:686)
[ 1750.728851][    C3]  ksys_write (fs/read_write.c:739)
[ 1750.728852][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1750.728854][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1750.728856][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1750.728860][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1750.728862][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1750.728864][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1750.728865][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1750.728867][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1750.728867][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1750.728868][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1750.728869][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1750.728870][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1776.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1776.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1776.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1776.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 1776.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1776.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1776.385111][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1776.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1776.385114][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1776.385115][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1776.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1776.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1776.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1776.385119][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1776.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1776.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1776.385123][    C3] PKRU: 55555554
[ 1776.385124][    C3] Call Trace:
[ 1776.385126][    C3]  <TASK>
[ 1776.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1776.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1776.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1776.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1776.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1776.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1776.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1776.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1776.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1776.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1776.385150][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1776.385153][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1776.385155][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1776.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1776.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1776.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1776.385163][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1776.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1776.385167][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1776.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1776.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1776.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1776.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1776.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1776.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1776.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1776.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1776.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1776.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1776.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1776.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1776.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1776.385191][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1776.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1776.385194][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1776.385196][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1776.385198][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1776.385199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1776.385201][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1776.385202][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1776.385205][    C3]  vfs_write (fs/read_write.c:686)
[ 1776.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 1776.385208][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1776.385210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1776.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1776.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1776.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1776.385218][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1776.385219][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1776.385220][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1776.385221][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1776.385222][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1776.385222][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1776.385223][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1795.396502][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1795.396748][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1795.396911][    C3] NMI backtrace for cpu 3
| [ 1795.396921][    C3] Tainted: [L]=SOFTLOCKUP
[ 1795.396922][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1795.396924][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1795.396929][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1795.396931][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1795.396933][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1795.396934][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1795.396935][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1795.396936][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1795.396937][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1795.396939][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1795.396942][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1795.396943][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1795.396943][    C3] PKRU: 55555554
[ 1795.396944][    C3] Call Trace:
[ 1795.396947][    C3]  <TASK>
[ 1795.396949][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1795.396952][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1795.396954][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1795.396957][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1795.396960][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1795.396962][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1795.396965][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1795.396967][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1795.396970][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1795.396971][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1795.396973][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1795.396976][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1795.396978][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1795.396980][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1795.396982][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1795.396984][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1795.396987][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1795.396989][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1795.396990][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1795.396992][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1795.396994][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1795.396997][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1795.397000][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1795.397001][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1795.397004][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1795.397006][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1795.397007][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1795.397009][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1795.397011][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1795.397012][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1795.397015][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1795.397016][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1795.397018][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1795.397019][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1795.397021][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1795.397023][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1795.397025][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1795.397026][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1795.397028][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1795.397029][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1795.397032][    C3]  vfs_write (fs/read_write.c:686)
[ 1795.397034][    C3]  ksys_write (fs/read_write.c:739)
[ 1795.397036][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1795.397037][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1795.397039][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1795.397042][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1795.397045][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1795.397047][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1795.397048][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1795.397049][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1795.397050][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1795.397051][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1795.397051][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1795.397052][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1820.385113][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1820.385115][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1820.385118][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1820.385127][    C3] Tainted: [L]=SOFTLOCKUP
[ 1820.385128][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1820.385130][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1820.385134][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1820.385135][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1820.385138][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1820.385139][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1820.385140][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1820.385141][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1820.385142][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1820.385144][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1820.385148][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1820.385149][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1820.385150][    C3] PKRU: 55555554
[ 1820.385151][    C3] Call Trace:
[ 1820.385153][    C3]  <TASK>
[ 1820.385156][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1820.385161][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1820.385163][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1820.385167][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1820.385171][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1820.385173][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1820.385175][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1820.385178][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1820.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1820.385183][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1820.385185][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1820.385187][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1820.385189][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1820.385191][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1820.385193][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1820.385195][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1820.385200][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1820.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1820.385203][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1820.385206][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1820.385208][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1820.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1820.385214][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1820.385216][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1820.385220][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1820.385222][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1820.385224][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1820.385226][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1820.385229][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1820.385230][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1820.385233][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1820.385234][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1820.385236][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1820.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1820.385240][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1820.385242][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1820.385243][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1820.385245][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1820.385247][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1820.385248][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1820.385250][    C3]  vfs_write (fs/read_write.c:686)
[ 1820.385253][    C3]  ksys_write (fs/read_write.c:739)
[ 1820.385255][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1820.385256][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1820.385259][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1820.385262][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1820.385266][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1820.385269][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1820.385271][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1820.385273][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1820.385273][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1820.385274][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1820.385275][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1820.385276][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1828.731071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1828.731260][    C3] rcu: 3-....: (883716 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=196289
| [ 1828.731529][    C3] rcu: (t=884039 jiffies g=527745 q=23688 ncpus=4)
| [ 1828.731676][    C3] Tainted: [L]=SOFTLOCKUP
[ 1828.731677][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1828.731678][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1828.731684][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1828.731685][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1828.731690][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1828.731691][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1828.731691][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1828.731692][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1828.731693][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1828.731695][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1828.731698][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1828.731699][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1828.731700][    C3] PKRU: 55555554
[ 1828.731700][    C3] Call Trace:
[ 1828.731701][    C3]  <TASK>
[ 1828.731702][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1828.731706][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1828.731708][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1828.731711][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1828.731715][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1828.731716][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1828.731719][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1828.731721][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1828.731724][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1828.731726][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1828.731728][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1828.731731][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1828.731733][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1828.731735][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1828.731737][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1828.731739][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1828.731743][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1828.731744][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1828.731746][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1828.731749][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1828.731750][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1828.731753][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1828.731756][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1828.731758][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1828.731761][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1828.731763][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1828.731765][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1828.731767][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1828.731769][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1828.731771][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1828.731773][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1828.731775][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1828.731777][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1828.731779][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1828.731780][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1828.731782][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1828.731783][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1828.731785][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1828.731787][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1828.731788][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1828.731790][    C3]  vfs_write (fs/read_write.c:686)
[ 1828.731792][    C3]  ksys_write (fs/read_write.c:739)
[ 1828.731794][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1828.731796][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1828.731799][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1828.731801][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1828.731804][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1828.731805][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1828.731806][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1828.731808][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1828.731808][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1828.731809][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1828.731810][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1828.731810][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1856.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1856.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1856.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1856.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 1856.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1856.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1856.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1856.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1856.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1856.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1856.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1856.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1856.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1856.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1856.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1856.385118][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1856.385118][    C3] PKRU: 55555554
[ 1856.385119][    C3] Call Trace:
[ 1856.385120][    C3]  <TASK>
[ 1856.385121][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1856.385123][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1856.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1856.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1856.385130][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1856.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1856.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1856.385136][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1856.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1856.385140][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1856.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1856.385145][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1856.385147][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1856.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1856.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1856.385153][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1856.385155][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1856.385157][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1856.385159][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1856.385161][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1856.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1856.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1856.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1856.385169][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1856.385172][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1856.385174][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1856.385175][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1856.385177][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1856.385179][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1856.385180][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1856.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1856.385184][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1856.385186][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1856.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1856.385189][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1856.385190][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1856.385192][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1856.385194][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1856.385195][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1856.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1856.385199][    C3]  vfs_write (fs/read_write.c:686)
[ 1856.385201][    C3]  ksys_write (fs/read_write.c:739)
[ 1856.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1856.385204][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1856.385206][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1856.385209][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1856.385211][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1856.385212][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1856.385213][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1856.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1856.385215][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1856.385216][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1856.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1856.385217][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1884.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1884.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1884.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1884.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 1884.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1884.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1884.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1884.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1884.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1884.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1884.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1884.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1884.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1884.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1884.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1884.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1884.385154][    C3] PKRU: 55555554
[ 1884.385155][    C3] Call Trace:
[ 1884.385158][    C3]  <TASK>
[ 1884.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1884.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1884.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1884.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1884.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1884.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1884.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1884.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1884.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1884.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1884.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1884.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1884.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1884.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1884.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1884.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1884.385207][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1884.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1884.385211][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1884.385213][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1884.385215][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1884.385218][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1884.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1884.385223][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1884.385227][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1884.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1884.385237][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1884.385239][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1884.385242][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1884.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1884.385245][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1884.385247][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1884.385249][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1884.385251][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1884.385252][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1884.385255][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1884.385256][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1884.385258][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1884.385259][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1884.385261][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1884.385263][    C3]  vfs_write (fs/read_write.c:686)
[ 1884.385265][    C3]  ksys_write (fs/read_write.c:739)
[ 1884.385267][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1884.385269][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1884.385271][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1884.385275][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1884.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1884.385282][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1884.385284][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1884.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1884.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1884.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1884.385288][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1884.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1893.700533][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1893.700706][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1893.700877][    C3] NMI backtrace for cpu 3
| [ 1893.700891][    C3] Tainted: [L]=SOFTLOCKUP
[ 1893.700892][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1893.700893][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:97 mm/kasan/generic.c:115 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 1893.700901][    C3] Code: 4c 89 d1 4c 89 d8 4c 29 d9 e9 19 ff ff ff 48 85 c9 74 8c 4c 01 c9 eb 1b 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 48 83 c0 01 <48> 39 c8 0f 84 6c ff ff ff 80 38 00 74 ee e9 47 ff ff ff b8 01 00
All code
========
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 89 d8             	mov    %r11,%rax
   6:	4c 29 d9             	sub    %r11,%rcx
   9:	e9 19 ff ff ff       	jmp    0xffffffffffffff27
   e:	48 85 c9             	test   %rcx,%rcx
  11:	74 8c                	je     0xffffffffffffff9f
  13:	4c 01 c9             	add    %r9,%rcx
  16:	eb 1b                	jmp    0x33
  18:	0f 1f 00             	nopl   (%rax)
  1b:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  22:	00 00 00 00 
  26:	48 83 c0 01          	add    $0x1,%rax
  2a:*	48 39 c8             	cmp    %rcx,%rax		<-- trapping instruction
  2d:	0f 84 6c ff ff ff    	je     0xffffffffffffff9f
  33:	80 38 00             	cmpb   $0x0,(%rax)
  36:	74 ee                	je     0x26
  38:	e9 47 ff ff ff       	jmp    0xffffffffffffff84
  3d:	b8                   	.byte 0xb8
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 39 c8             	cmp    %rcx,%rax
   3:	0f 84 6c ff ff ff    	je     0xffffffffffffff75
   9:	80 38 00             	cmpb   $0x0,(%rax)
   c:	74 ee                	je     0xfffffffffffffffc
   e:	e9 47 ff ff ff       	jmp    0xffffffffffffff5a
  13:	b8                   	.byte 0xb8
  14:	01 00                	add    %eax,(%rax)
[ 1893.700902][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000286
[ 1893.700905][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: ffe21c000221716a
[ 1893.700906][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1893.700907][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1893.700908][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1893.700909][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 1893.700911][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1893.700914][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1893.700915][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1893.700915][    C3] PKRU: 55555554
[ 1893.700916][    C3] Call Trace:
[ 1893.700919][    C3]  <TASK>
[ 1893.700921][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 1893.700925][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1893.700929][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1893.700931][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1893.700935][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1893.700938][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1893.700940][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1893.700943][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1893.700945][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1893.700948][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1893.700950][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1893.700952][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1893.700954][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1893.700957][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1893.700958][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1893.700960][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1893.700962][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1893.700966][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1893.700968][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1893.700970][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1893.700972][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1893.700973][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1893.700977][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1893.700980][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1893.700982][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1893.700985][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1893.700987][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1893.700988][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1893.700991][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1893.700993][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1893.700995][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1893.700997][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1893.700999][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1893.701001][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1893.701003][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1893.701004][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1893.701006][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1893.701008][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1893.701009][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1893.701011][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1893.701012][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1893.701015][    C3]  vfs_write (fs/read_write.c:686)
[ 1893.701017][    C3]  ksys_write (fs/read_write.c:739)
[ 1893.701019][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1893.701021][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1893.701023][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1893.701027][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1893.701029][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1893.701031][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1893.701032][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1893.701034][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1893.701035][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1893.701035][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1893.701036][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1893.701037][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1906.735072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1906.735306][    C3] rcu: 3-....: (961689 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=213607
| [ 1906.735540][    C3] rcu: (t=962043 jiffies g=527745 q=25204 ncpus=4)
| [ 1906.735728][    C3] Tainted: [L]=SOFTLOCKUP
[ 1906.735729][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1906.735731][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1906.735735][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1906.735736][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1906.735739][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1906.735740][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1906.735741][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1906.735741][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1906.735742][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1906.735744][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1906.735747][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1906.735748][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1906.735749][    C3] PKRU: 55555554
[ 1906.735750][    C3] Call Trace:
[ 1906.735750][    C3]  <TASK>
[ 1906.735751][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1906.735754][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1906.735756][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1906.735758][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1906.735761][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1906.735762][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1906.735765][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1906.735767][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1906.735770][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1906.735771][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1906.735774][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1906.735776][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1906.735778][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1906.735780][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1906.735782][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1906.735784][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1906.735786][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1906.735788][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1906.735790][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1906.735792][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1906.735793][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1906.735796][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1906.735798][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1906.735800][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1906.735802][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1906.735803][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1906.735804][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1906.735806][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1906.735808][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1906.735809][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1906.735811][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1906.735813][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1906.735814][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1906.735816][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1906.735818][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1906.735819][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1906.735821][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1906.735823][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1906.735824][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1906.735825][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1906.735828][    C3]  vfs_write (fs/read_write.c:686)
[ 1906.735830][    C3]  ksys_write (fs/read_write.c:739)
[ 1906.735831][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1906.735833][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1906.735835][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1906.735837][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1906.735839][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1906.735840][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1906.735841][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1906.735843][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1906.735843][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1906.735844][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1906.735845][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1906.735846][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1932.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1932.385098][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1932.385100][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1932.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 1932.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1932.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1932.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1932.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1932.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1932.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1932.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1932.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1932.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1932.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1932.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1932.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1932.385123][    C3] PKRU: 55555554
[ 1932.385123][    C3] Call Trace:
[ 1932.385125][    C3]  <TASK>
[ 1932.385128][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1932.385130][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1932.385132][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1932.385135][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1932.385137][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1932.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1932.385141][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1932.385143][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1932.385146][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1932.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1932.385150][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1932.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1932.385154][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1932.385156][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1932.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1932.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1932.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1932.385164][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1932.385166][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1932.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1932.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1932.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1932.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1932.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1932.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1932.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1932.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1932.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1932.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1932.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1932.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1932.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1932.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1932.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1932.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1932.385196][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1932.385198][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1932.385199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1932.385201][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1932.385202][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1932.385205][    C3]  vfs_write (fs/read_write.c:686)
[ 1932.385207][    C3]  ksys_write (fs/read_write.c:739)
[ 1932.385208][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1932.385210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1932.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1932.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1932.385217][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1932.385219][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1932.385220][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1932.385221][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1932.385222][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1932.385223][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1932.385224][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1932.385224][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1960.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 1960.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 1960.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 1960.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 1960.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1960.385102][    C3] RIP: 0010:kasan_check_range (./include/linux/kasan.h:65 mm/kasan/generic.c:141 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 1960.385105][    C3] Code: 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff 48 39 c7 0f 82 d1 00 00 00 4c 8d 4c 37 ff 48 89 f9 4c 8d 74 37 ff <48> b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	00 ff                	add    %bh,%bh
   8:	eb 0a                	jmp    0x14
   a:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  11:	80 ff ff 
  14:	48 39 c7             	cmp    %rax,%rdi
  17:	0f 82 d1 00 00 00    	jb     0xee
  1d:	4c 8d 4c 37 ff       	lea    -0x1(%rdi,%rsi,1),%r9
  22:	48 89 f9             	mov    %rdi,%rcx
  25:	4c 8d 74 37 ff       	lea    -0x1(%rdi,%rsi,1),%r14
  2a:*	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax		<-- trapping instruction
  31:	fc ff df 
  34:	49 c1 e9 03          	shr    $0x3,%r9
  38:	48 c1 e9 03          	shr    $0x3,%rcx
  3c:	4e                   	rex.WRX
  3d:	8d                   	.byte 0x8d
  3e:	54                   	push   %rsp
  3f:	08                   	.byte 0x8

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df 
   a:	49 c1 e9 03          	shr    $0x3,%r9
   e:	48 c1 e9 03          	shr    $0x3,%rcx
  12:	4e                   	rex.WRX
  13:	8d                   	.byte 0x8d
  14:	54                   	push   %rsp
  15:	08                   	.byte 0x8
[ 1960.385106][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000206
[ 1960.385108][    C3] RAX: ff00000000000000 RBX: ff110000110b8b48 RCX: ff110000110b8b48
[ 1960.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1960.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ff110000110b8b4b
[ 1960.385110][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1960.385111][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 1960.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1960.385116][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1960.385117][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1960.385118][    C3] PKRU: 55555554
[ 1960.385118][    C3] Call Trace:
[ 1960.385121][    C3]  <TASK>
[ 1960.385123][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 1960.385125][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1960.385127][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1960.385129][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1960.385131][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1960.385133][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1960.385135][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1960.385137][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1960.385139][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1960.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1960.385144][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1960.385146][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1960.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1960.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1960.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1960.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1960.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1960.385159][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1960.385161][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1960.385163][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1960.385165][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1960.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1960.385169][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1960.385172][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1960.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1960.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1960.385176][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1960.385178][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1960.385180][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1960.385181][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1960.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1960.385185][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1960.385186][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1960.385188][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1960.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1960.385191][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1960.385193][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1960.385194][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1960.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1960.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1960.385199][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1960.385201][    C3]  vfs_write (fs/read_write.c:686)
[ 1960.385203][    C3]  ksys_write (fs/read_write.c:739)
[ 1960.385205][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1960.385206][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1960.385208][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1960.385211][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1960.385213][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1960.385214][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1960.385215][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1960.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1960.385217][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1960.385218][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1960.385219][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1960.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1984.739073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 1984.739356][    C3] rcu: 3-....: (1039668 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=231176
| [ 1984.739627][    C3] rcu: (t=1040047 jiffies g=527745 q=26353 ncpus=4)
| [ 1984.739768][    C3] Tainted: [L]=SOFTLOCKUP
[ 1984.739769][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1984.739771][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1984.739780][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1984.739783][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1984.739786][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1984.739787][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1984.739789][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1984.739790][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1984.739791][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1984.739793][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1984.739797][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1984.739799][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1984.739800][    C3] PKRU: 55555554
[ 1984.739800][    C3] Call Trace:
[ 1984.739801][    C3]  <TASK>
[ 1984.739803][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1984.739807][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1984.739810][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1984.739813][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1984.739817][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1984.739818][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1984.739822][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1984.739824][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1984.739827][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1984.739829][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1984.739831][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1984.739833][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1984.739836][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1984.739838][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1984.739840][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1984.739842][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1984.739846][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1984.739848][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1984.739850][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1984.739852][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1984.739853][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1984.739856][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1984.739860][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1984.739862][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1984.739865][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1984.739868][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1984.739869][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1984.739871][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1984.739873][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1984.739874][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1984.739877][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1984.739878][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1984.739881][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1984.739882][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1984.739884][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1984.739885][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1984.739887][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1984.739888][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1984.739890][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1984.739891][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1984.739894][    C3]  vfs_write (fs/read_write.c:686)
[ 1984.739896][    C3]  ksys_write (fs/read_write.c:739)
[ 1984.739897][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1984.739899][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1984.739901][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1984.739905][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1984.739907][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1984.739910][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1984.739911][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1984.739913][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1984.739914][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1984.739915][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1984.739915][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1984.739916][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 1992.005503][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 1992.005687][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 1992.005852][    C3] NMI backtrace for cpu 3
| [ 1992.005864][    C3] Tainted: [L]=SOFTLOCKUP
[ 1992.005865][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 1992.005866][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 1992.005872][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 1992.005874][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 1992.005876][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 1992.005877][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 1992.005877][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 1992.005878][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 1992.005879][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 1992.005881][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 1992.005884][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1992.005885][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 1992.005886][    C3] PKRU: 55555554
[ 1992.005886][    C3] Call Trace:
[ 1992.005889][    C3]  <TASK>
[ 1992.005891][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 1992.005894][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 1992.005897][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 1992.005899][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 1992.005902][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 1992.005904][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1992.005907][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 1992.005909][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 1992.005912][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 1992.005914][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 1992.005916][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 1992.005919][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 1992.005921][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 1992.005922][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 1992.005924][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 1992.005926][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 1992.005930][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 1992.005932][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1992.005934][    C3]  ? release_sock (net/core/sock.c:3794)
[ 1992.005936][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 1992.005938][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 1992.005941][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1992.005944][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 1992.005945][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 1992.005948][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 1992.005951][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1992.005952][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 1992.005954][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 1992.005957][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 1992.005958][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1992.005960][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 1992.005962][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 1992.005964][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 1992.005966][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 1992.005967][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 1992.005969][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 1992.005971][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 1992.005973][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 1992.005974][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 1992.005975][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 1992.005978][    C3]  vfs_write (fs/read_write.c:686)
[ 1992.005980][    C3]  ksys_write (fs/read_write.c:739)
[ 1992.005982][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 1992.005983][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 1992.005986][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 1992.005989][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 1992.005991][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 1992.005994][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 1992.005995][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 1992.005996][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 1992.005997][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 1992.005997][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 1992.005998][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 1992.005999][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2016.385109][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2016.385110][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2016.385113][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2016.385120][    C3] Tainted: [L]=SOFTLOCKUP
[ 2016.385121][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2016.385122][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2016.385124][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2016.385126][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2016.385128][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2016.385129][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2016.385129][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2016.385130][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2016.385131][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2016.385133][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2016.385136][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2016.385137][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2016.385138][    C3] PKRU: 55555554
[ 2016.385138][    C3] Call Trace:
[ 2016.385141][    C3]  <TASK>
[ 2016.385144][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2016.385147][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2016.385149][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2016.385152][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2016.385155][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2016.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2016.385159][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2016.385162][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2016.385164][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2016.385166][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2016.385168][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2016.385171][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2016.385173][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2016.385175][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2016.385177][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2016.385179][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2016.385182][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2016.385183][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2016.385185][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2016.385187][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2016.385189][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2016.385192][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2016.385195][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2016.385197][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2016.385199][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2016.385201][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2016.385202][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2016.385204][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2016.385206][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2016.385207][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2016.385210][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2016.385211][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2016.385213][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2016.385215][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2016.385216][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2016.385218][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2016.385220][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2016.385222][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2016.385223][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2016.385225][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2016.385227][    C3]  vfs_write (fs/read_write.c:686)
[ 2016.385229][    C3]  ksys_write (fs/read_write.c:739)
[ 2016.385231][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2016.385233][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2016.385235][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2016.385238][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2016.385240][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2016.385242][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2016.385243][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2016.385245][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2016.385246][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2016.385246][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2016.385247][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2016.385248][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2044.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2044.385098][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2044.385100][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2044.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 2044.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2044.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2044.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2044.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2044.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2044.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2044.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2044.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2044.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2044.385119][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2044.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2044.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2044.385124][    C3] PKRU: 55555554
[ 2044.385125][    C3] Call Trace:
[ 2044.385127][    C3]  <TASK>
[ 2044.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2044.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2044.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2044.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2044.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2044.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2044.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2044.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2044.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2044.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2044.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2044.385153][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2044.385155][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2044.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2044.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2044.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2044.385163][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2044.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2044.385167][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2044.385169][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2044.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2044.385174][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2044.385176][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2044.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2044.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2044.385181][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2044.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2044.385184][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2044.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2044.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2044.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2044.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2044.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2044.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2044.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2044.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2044.385198][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2044.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2044.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2044.385203][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2044.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 2044.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 2044.385209][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2044.385211][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2044.385213][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2044.385215][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2044.385217][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2044.385219][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2044.385220][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2044.385222][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2044.385223][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2044.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2044.385224][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2044.385225][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2062.743072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2062.743382][    C3] rcu: 3-....: (1117640 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=248462
| [ 2062.743632][    C3] rcu: (t=1118051 jiffies g=527745 q=27850 ncpus=4)
| [ 2062.743794][    C3] Tainted: [L]=SOFTLOCKUP
[ 2062.743795][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2062.743797][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2062.743800][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2062.743802][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2062.743803][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2062.743805][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2062.743805][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2062.743806][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2062.743807][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2062.743809][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2062.743812][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2062.743813][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2062.743814][    C3] PKRU: 55555554
[ 2062.743815][    C3] Call Trace:
[ 2062.743815][    C3]  <TASK>
[ 2062.743816][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2062.743818][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2062.743820][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2062.743823][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2062.743825][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2062.743827][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2062.743829][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2062.743831][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2062.743834][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2062.743835][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2062.743838][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2062.743840][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2062.743842][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2062.743844][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2062.743846][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2062.743848][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2062.743850][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2062.743852][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2062.743854][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2062.743856][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2062.743857][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2062.743860][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2062.743862][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2062.743864][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2062.743866][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2062.743867][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2062.743869][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2062.743871][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2062.743872][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2062.743873][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2062.743876][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2062.743877][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2062.743879][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2062.743880][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2062.743882][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2062.743883][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2062.743885][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2062.743886][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2062.743888][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2062.743889][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2062.743892][    C3]  vfs_write (fs/read_write.c:686)
[ 2062.743894][    C3]  ksys_write (fs/read_write.c:739)
[ 2062.743895][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2062.743897][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2062.743899][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2062.743901][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2062.743903][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2062.743904][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2062.743905][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2062.743907][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2062.743907][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2062.743908][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2062.743909][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2062.743910][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2088.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2088.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2088.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2088.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 2088.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2088.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2088.385114][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2088.385115][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2088.385117][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2088.385118][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2088.385118][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2088.385119][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2088.385120][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2088.385122][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2088.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2088.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2088.385127][    C3] PKRU: 55555554
[ 2088.385128][    C3] Call Trace:
[ 2088.385131][    C3]  <TASK>
[ 2088.385134][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2088.385137][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2088.385139][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2088.385141][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2088.385144][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2088.385146][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2088.385148][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2088.385151][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2088.385153][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2088.385155][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2088.385157][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2088.385160][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2088.385162][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2088.385164][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2088.385166][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2088.385168][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2088.385170][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2088.385172][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2088.385174][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2088.385176][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2088.385178][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2088.385181][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2088.385183][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2088.385185][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2088.385187][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2088.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2088.385190][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2088.385192][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2088.385193][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2088.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2088.385197][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2088.385199][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2088.385200][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2088.385202][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2088.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2088.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2088.385207][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2088.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2088.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2088.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2088.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 2088.385216][    C3]  ksys_write (fs/read_write.c:739)
[ 2088.385218][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2088.385223][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2088.385225][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2088.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2088.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2088.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2088.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2088.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2088.385235][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2088.385236][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2088.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2088.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2090.309524][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2090.309700][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2090.309869][    C3] NMI backtrace for cpu 3
| [ 2090.309875][    C3] Tainted: [L]=SOFTLOCKUP
[ 2090.309876][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2090.309877][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2090.309880][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2090.309881][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2090.309882][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2090.309883][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2090.309884][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2090.309885][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2090.309885][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2090.309887][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2090.309890][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2090.309890][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2090.309891][    C3] PKRU: 55555554
[ 2090.309892][    C3] Call Trace:
[ 2090.309893][    C3]  <TASK>
[ 2090.309895][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2090.309897][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2090.309899][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2090.309901][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2090.309903][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2090.309905][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2090.309907][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2090.309909][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2090.309912][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2090.309914][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2090.309916][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2090.309918][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2090.309920][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2090.309922][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2090.309924][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2090.309926][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2090.309928][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2090.309930][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2090.309932][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2090.309934][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2090.309935][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2090.309938][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2090.309940][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2090.309942][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2090.309944][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2090.309945][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2090.309946][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2090.309948][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2090.309950][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2090.309951][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2090.309953][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2090.309955][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2090.309956][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2090.309958][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2090.309959][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2090.309961][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2090.309963][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2090.309964][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2090.309966][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2090.309967][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2090.309970][    C3]  vfs_write (fs/read_write.c:686)
[ 2090.309972][    C3]  ksys_write (fs/read_write.c:739)
[ 2090.309973][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2090.309975][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2090.309977][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2090.309979][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2090.309981][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2090.309982][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2090.309983][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2090.309985][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2090.309985][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2090.309986][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2090.309987][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2090.309987][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2116.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2116.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2116.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2116.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 2116.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2116.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2116.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2116.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2116.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2116.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2116.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2116.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2116.385147][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2116.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2116.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2116.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2116.385155][    C3] PKRU: 55555554
[ 2116.385156][    C3] Call Trace:
[ 2116.385160][    C3]  <TASK>
[ 2116.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2116.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2116.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2116.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2116.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2116.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2116.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2116.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2116.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2116.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2116.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2116.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2116.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2116.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2116.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2116.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2116.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2116.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2116.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2116.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2116.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2116.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2116.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2116.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2116.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2116.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2116.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2116.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2116.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2116.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2116.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2116.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2116.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2116.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2116.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2116.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2116.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2116.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2116.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2116.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2116.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 2116.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 2116.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2116.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2116.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2116.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2116.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2116.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2116.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2116.385284][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2116.385285][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2116.385286][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2116.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2116.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2140.747073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2140.747351][    C3] rcu: 3-....: (1195611 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=273723
| [ 2140.747622][    C3] rcu: (t=1196055 jiffies g=527745 q=29350 ncpus=4)
| [ 2140.747765][    C3] Tainted: [L]=SOFTLOCKUP
[ 2140.747766][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2140.747768][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2140.747777][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2140.747779][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2140.747782][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2140.747784][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2140.747785][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2140.747786][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2140.747787][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2140.747790][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2140.747793][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2140.747794][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2140.747795][    C3] PKRU: 55555554
[ 2140.747796][    C3] Call Trace:
[ 2140.747797][    C3]  <TASK>
[ 2140.747798][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2140.747803][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2140.747805][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2140.747809][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2140.747812][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2140.747813][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2140.747817][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2140.747819][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2140.747822][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2140.747824][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2140.747826][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2140.747828][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2140.747830][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2140.747832][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2140.747834][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2140.747836][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2140.747840][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2140.747842][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2140.747844][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2140.747846][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2140.747848][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2140.747851][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2140.747854][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2140.747856][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2140.747859][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2140.747862][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2140.747863][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2140.747865][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2140.747867][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2140.747869][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2140.747871][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2140.747873][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2140.747875][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2140.747877][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2140.747878][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2140.747880][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2140.747881][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2140.747883][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2140.747884][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2140.747886][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2140.747888][    C3]  vfs_write (fs/read_write.c:686)
[ 2140.747890][    C3]  ksys_write (fs/read_write.c:739)
[ 2140.747892][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2140.747894][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2140.747896][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2140.747899][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2140.747902][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2140.747905][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2140.747906][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2140.747907][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2140.747908][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2140.747909][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2140.747910][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2140.747911][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2168.385109][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2168.385111][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2168.385113][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2168.385121][    C3] Tainted: [L]=SOFTLOCKUP
[ 2168.385122][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2168.385124][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2168.385127][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2168.385128][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2168.385130][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2168.385131][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2168.385132][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2168.385133][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2168.385134][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2168.385136][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2168.385139][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2168.385140][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2168.385141][    C3] PKRU: 55555554
[ 2168.385142][    C3] Call Trace:
[ 2168.385144][    C3]  <TASK>
[ 2168.385147][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2168.385150][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2168.385152][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2168.385154][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2168.385157][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2168.385158][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2168.385161][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2168.385163][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2168.385166][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2168.385167][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2168.385169][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2168.385172][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2168.385174][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2168.385176][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2168.385178][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2168.385180][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2168.385183][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2168.385184][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2168.385186][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2168.385188][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2168.385190][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2168.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2168.385195][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2168.385197][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2168.385199][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2168.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2168.385203][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2168.385205][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2168.385206][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2168.385208][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2168.385210][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2168.385212][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2168.385213][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2168.385215][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2168.385216][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2168.385218][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2168.385220][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2168.385222][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2168.385223][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2168.385225][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2168.385227][    C3]  vfs_write (fs/read_write.c:686)
[ 2168.385229][    C3]  ksys_write (fs/read_write.c:739)
[ 2168.385231][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2168.385233][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2168.385235][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2168.385238][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2168.385241][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2168.385243][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2168.385244][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2168.385246][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2168.385246][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2168.385247][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2168.385248][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2168.385249][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2188.613557][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2188.613739][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2188.613907][    C3] NMI backtrace for cpu 3
| [ 2188.613919][    C3] Tainted: [L]=SOFTLOCKUP
[ 2188.613919][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2188.613921][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2188.613925][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2188.613927][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2188.613930][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2188.613931][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2188.613932][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2188.613933][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2188.613933][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2188.613935][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2188.613938][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2188.613940][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2188.613940][    C3] PKRU: 55555554
[ 2188.613941][    C3] Call Trace:
[ 2188.613944][    C3]  <TASK>
[ 2188.613948][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2188.613951][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2188.613953][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2188.613955][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2188.613958][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2188.613960][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2188.613962][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2188.613964][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2188.613967][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2188.613969][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2188.613971][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2188.613973][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2188.613975][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2188.613977][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2188.613979][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2188.613981][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2188.613984][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2188.613985][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2188.613987][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2188.613989][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2188.613991][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2188.613994][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2188.613996][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2188.613998][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2188.614000][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2188.614001][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2188.614003][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2188.614005][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2188.614007][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2188.614008][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2188.614010][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2188.614012][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2188.614013][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2188.614015][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2188.614016][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2188.614018][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2188.614020][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2188.614021][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2188.614023][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2188.614024][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2188.614027][    C3]  vfs_write (fs/read_write.c:686)
[ 2188.614029][    C3]  ksys_write (fs/read_write.c:739)
[ 2188.614030][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2188.614032][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2188.614034][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2188.614037][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2188.614039][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2188.614041][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2188.614042][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2188.614044][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2188.614045][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2188.614046][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2188.614047][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2188.614047][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2216.385105][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2216.385106][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2216.385108][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2216.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 2216.385116][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2216.385118][    C3] RIP: 0010:kasan_check_range (./include/linux/kasan.h:65 mm/kasan/generic.c:141 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 2216.385122][    C3] Code: 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff 48 39 c7 0f 82 d1 00 00 00 4c 8d 4c 37 ff 48 89 f9 4c 8d 74 37 ff <48> b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	00 ff                	add    %bh,%bh
   8:	eb 0a                	jmp    0x14
   a:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  11:	80 ff ff 
  14:	48 39 c7             	cmp    %rax,%rdi
  17:	0f 82 d1 00 00 00    	jb     0xee
  1d:	4c 8d 4c 37 ff       	lea    -0x1(%rdi,%rsi,1),%r9
  22:	48 89 f9             	mov    %rdi,%rcx
  25:	4c 8d 74 37 ff       	lea    -0x1(%rdi,%rsi,1),%r14
  2a:*	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax		<-- trapping instruction
  31:	fc ff df 
  34:	49 c1 e9 03          	shr    $0x3,%r9
  38:	48 c1 e9 03          	shr    $0x3,%rcx
  3c:	4e                   	rex.WRX
  3d:	8d                   	.byte 0x8d
  3e:	54                   	push   %rsp
  3f:	08                   	.byte 0x8

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df 
   a:	49 c1 e9 03          	shr    $0x3,%r9
   e:	48 c1 e9 03          	shr    $0x3,%rcx
  12:	4e                   	rex.WRX
  13:	8d                   	.byte 0x8d
  14:	54                   	push   %rsp
  15:	08                   	.byte 0x8
[ 2216.385123][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000206
[ 2216.385125][    C3] RAX: ff00000000000000 RBX: ff110000110b8b48 RCX: ff110000110b8b48
[ 2216.385126][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2216.385127][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ff110000110b8b4b
[ 2216.385128][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2216.385128][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 2216.385131][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2216.385134][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2216.385135][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2216.385135][    C3] PKRU: 55555554
[ 2216.385136][    C3] Call Trace:
[ 2216.385139][    C3]  <TASK>
[ 2216.385142][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 2216.385145][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2216.385147][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2216.385149][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2216.385151][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2216.385154][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2216.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2216.385158][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2216.385160][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2216.385163][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2216.385164][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2216.385166][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2216.385169][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2216.385171][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2216.385172][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2216.385174][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2216.385176][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2216.385179][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2216.385180][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2216.385183][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2216.385184][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2216.385186][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2216.385189][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2216.385191][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2216.385193][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2216.385195][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2216.385196][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2216.385198][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2216.385200][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2216.385202][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2216.385203][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2216.385205][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2216.385207][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2216.385208][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2216.385210][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2216.385211][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2216.385213][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2216.385214][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2216.385216][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2216.385218][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2216.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2216.385221][    C3]  vfs_write (fs/read_write.c:686)
[ 2216.385223][    C3]  ksys_write (fs/read_write.c:739)
[ 2216.385225][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2216.385227][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2216.385229][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2216.385231][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2216.385234][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2216.385236][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2216.385237][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2216.385238][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2216.385239][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2216.385240][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2216.385241][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2216.385241][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2218.751071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2218.751307][    C3] rcu: 3-....: (1273584 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=303797
| [ 2218.751537][    C3] rcu: (t=1274059 jiffies g=527745 q=30853 ncpus=4)
| [ 2218.751716][    C3] Tainted: [L]=SOFTLOCKUP
[ 2218.751717][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2218.751717][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2218.751720][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2218.751721][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2218.751723][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2218.751723][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2218.751724][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2218.751725][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2218.751726][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2218.751727][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2218.751729][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2218.751730][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2218.751731][    C3] PKRU: 55555554
[ 2218.751732][    C3] Call Trace:
[ 2218.751732][    C3]  <TASK>
[ 2218.751733][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2218.751735][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2218.751737][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2218.751739][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2218.751741][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2218.751743][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2218.751745][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2218.751747][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2218.751750][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2218.751752][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2218.751754][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2218.751756][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2218.751758][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2218.751760][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2218.751762][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2218.751764][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2218.751766][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2218.751768][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2218.751770][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2218.751772][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2218.751773][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2218.751776][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2218.751778][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2218.751780][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2218.751782][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2218.751783][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2218.751784][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2218.751786][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2218.751788][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2218.751789][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2218.751791][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2218.751793][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2218.751794][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2218.751796][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2218.751797][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2218.751799][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2218.751800][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2218.751802][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2218.751803][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2218.751805][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2218.751807][    C3]  vfs_write (fs/read_write.c:686)
[ 2218.751809][    C3]  ksys_write (fs/read_write.c:739)
[ 2218.751811][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2218.751812][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2218.751814][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2218.751817][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2218.751818][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2218.751819][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2218.751820][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2218.751822][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2218.751822][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2218.751823][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2218.751824][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2218.751824][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2244.385103][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2244.385104][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2244.385107][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2244.385114][    C3] Tainted: [L]=SOFTLOCKUP
[ 2244.385114][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2244.385116][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2244.385119][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2244.385120][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2244.385122][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2244.385123][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2244.385124][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2244.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2244.385125][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2244.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2244.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2244.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2244.385133][    C3] PKRU: 55555554
[ 2244.385134][    C3] Call Trace:
[ 2244.385137][    C3]  <TASK>
[ 2244.385141][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2244.385144][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2244.385146][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2244.385148][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2244.385151][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2244.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2244.385155][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2244.385157][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2244.385160][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2244.385162][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2244.385164][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2244.385167][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2244.385169][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2244.385170][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2244.385172][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2244.385174][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2244.385177][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2244.385179][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2244.385181][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2244.385183][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2244.385185][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2244.385188][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2244.385190][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2244.385192][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2244.385194][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2244.385195][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2244.385196][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2244.385198][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2244.385200][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2244.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2244.385204][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2244.385205][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2244.385207][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2244.385209][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2244.385210][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2244.385212][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2244.385214][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2244.385215][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2244.385217][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2244.385218][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2244.385221][    C3]  vfs_write (fs/read_write.c:686)
[ 2244.385223][    C3]  ksys_write (fs/read_write.c:739)
[ 2244.385224][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2244.385226][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2244.385228][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2244.385231][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2244.385233][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2244.385236][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2244.385237][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2244.385239][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2244.385240][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2244.385241][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2244.385241][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2244.385242][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2272.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2272.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2272.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2272.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 2272.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2272.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2272.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2272.385106][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2272.385107][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2272.385108][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2272.385109][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2272.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2272.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2272.385112][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2272.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2272.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2272.385117][    C3] PKRU: 55555554
[ 2272.385117][    C3] Call Trace:
[ 2272.385120][    C3]  <TASK>
[ 2272.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2272.385124][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2272.385126][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2272.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2272.385130][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2272.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2272.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2272.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2272.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2272.385141][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2272.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2272.385146][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2272.385148][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2272.385150][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2272.385152][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2272.385154][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2272.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2272.385158][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2272.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2272.385162][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2272.385163][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2272.385166][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2272.385168][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2272.385170][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2272.385172][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2272.385173][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2272.385175][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2272.385176][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2272.385178][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2272.385179][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2272.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2272.385183][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2272.385185][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2272.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2272.385188][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2272.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2272.385191][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2272.385193][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2272.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2272.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2272.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 2272.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 2272.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2272.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2272.385205][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2272.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2272.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2272.385212][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2272.385213][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2272.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2272.385215][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2272.385216][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2272.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2272.385217][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2286.917476][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2286.917648][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2286.917842][    C3] NMI backtrace for cpu 3
| [ 2286.917849][    C3] Tainted: [L]=SOFTLOCKUP
[ 2286.917850][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2286.917852][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2286.917854][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2286.917856][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2286.917857][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2286.917858][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2286.917859][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2286.917860][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2286.917860][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2286.917862][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2286.917865][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2286.917866][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2286.917867][    C3] PKRU: 55555554
[ 2286.917867][    C3] Call Trace:
[ 2286.917869][    C3]  <TASK>
[ 2286.917871][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2286.917873][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2286.917875][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2286.917878][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2286.917880][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2286.917881][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2286.917884][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2286.917886][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2286.917889][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2286.917890][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2286.917892][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2286.917895][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2286.917897][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2286.917899][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2286.917901][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2286.917902][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2286.917905][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2286.917907][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2286.917909][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2286.917910][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2286.917912][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2286.917915][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2286.917917][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2286.917919][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2286.917920][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2286.917922][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2286.917923][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2286.917925][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2286.917926][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2286.917928][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2286.917930][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2286.917931][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2286.917933][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2286.917935][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2286.917936][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2286.917938][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2286.917939][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2286.917941][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2286.917943][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2286.917944][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2286.917946][    C3]  vfs_write (fs/read_write.c:686)
[ 2286.917948][    C3]  ksys_write (fs/read_write.c:739)
[ 2286.917950][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2286.917952][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2286.917954][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2286.917956][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2286.917958][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2286.917960][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2286.917961][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2286.917962][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2286.917963][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2286.917963][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2286.917964][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2286.917965][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2296.755072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2296.755299][    C3] rcu: 3-....: (1351557 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=333857
| [ 2296.755573][    C3] rcu: (t=1352063 jiffies g=527745 q=32350 ncpus=4)
| [ 2296.755715][    C3] Tainted: [L]=SOFTLOCKUP
[ 2296.755716][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2296.755717][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2296.755720][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2296.755721][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2296.755724][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2296.755725][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2296.755725][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2296.755726][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2296.755727][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2296.755728][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2296.755731][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2296.755732][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2296.755732][    C3] PKRU: 55555554
[ 2296.755733][    C3] Call Trace:
[ 2296.755734][    C3]  <TASK>
[ 2296.755735][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2296.755737][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2296.755739][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2296.755741][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2296.755743][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2296.755745][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2296.755747][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2296.755749][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2296.755752][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2296.755754][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2296.755756][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2296.755759][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2296.755761][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2296.755762][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2296.755764][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2296.755766][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2296.755769][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2296.755770][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2296.755772][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2296.755774][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2296.755776][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2296.755778][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2296.755780][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2296.755782][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2296.755784][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2296.755786][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2296.755787][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2296.755789][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2296.755790][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2296.755792][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2296.755794][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2296.755795][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2296.755797][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2296.755799][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2296.755800][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2296.755802][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2296.755803][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2296.755805][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2296.755806][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2296.755808][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2296.755810][    C3]  vfs_write (fs/read_write.c:686)
[ 2296.755812][    C3]  ksys_write (fs/read_write.c:739)
[ 2296.755814][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2296.755815][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2296.755817][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2296.755820][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2296.755821][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2296.755822][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2296.755824][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2296.755825][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2296.755826][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2296.755826][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2296.755827][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2296.755827][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2324.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2324.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2324.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2324.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 2324.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2324.385103][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2324.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2324.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2324.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2324.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2324.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2324.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2324.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2324.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2324.385116][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2324.385117][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2324.385117][    C3] PKRU: 55555554
[ 2324.385118][    C3] Call Trace:
[ 2324.385120][    C3]  <TASK>
[ 2324.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2324.385124][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2324.385126][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2324.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2324.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2324.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2324.385135][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2324.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2324.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2324.385141][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2324.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2324.385146][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2324.385148][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2324.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2324.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2324.385153][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2324.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2324.385157][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2324.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2324.385161][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2324.385163][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2324.385166][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2324.385168][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2324.385170][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2324.385172][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2324.385173][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2324.385174][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2324.385176][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2324.385178][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2324.385179][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2324.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2324.385183][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2324.385184][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2324.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2324.385188][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2324.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2324.385191][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2324.385193][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2324.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2324.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2324.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 2324.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 2324.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2324.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2324.385205][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2324.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2324.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2324.385212][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2324.385213][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2324.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2324.385214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2324.385215][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2324.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2324.385216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2352.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2352.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2352.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2352.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 2352.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2352.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2352.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2352.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2352.385107][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2352.385108][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2352.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2352.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2352.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2352.385112][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2352.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2352.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2352.385116][    C3] PKRU: 55555554
[ 2352.385116][    C3] Call Trace:
[ 2352.385118][    C3]  <TASK>
[ 2352.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2352.385123][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2352.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2352.385127][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2352.385129][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2352.385131][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2352.385133][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2352.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2352.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2352.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2352.385142][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2352.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2352.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2352.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2352.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2352.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2352.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2352.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2352.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2352.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2352.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2352.385164][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2352.385166][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2352.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2352.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2352.385171][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2352.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2352.385174][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2352.385176][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2352.385177][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2352.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2352.385181][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2352.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2352.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2352.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2352.385187][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2352.385189][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2352.385190][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2352.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2352.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2352.385196][    C3]  vfs_write (fs/read_write.c:686)
[ 2352.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 2352.385199][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2352.385201][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2352.385203][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2352.385205][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2352.385208][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2352.385209][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2352.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2352.385212][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2352.385212][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2352.385213][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2352.385214][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2352.385214][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2374.759071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2374.759275][    C3] rcu: 3-....: (1429536 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=363823
| [ 2374.759551][    C3] rcu: (t=1430067 jiffies g=527745 q=33487 ncpus=4)
| [ 2374.759689][    C3] Tainted: [L]=SOFTLOCKUP
[ 2374.759689][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2374.759690][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2374.759693][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2374.759695][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2374.759696][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2374.759697][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2374.759698][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2374.759699][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2374.759699][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2374.759701][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2374.759704][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2374.759704][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2374.759705][    C3] PKRU: 55555554
[ 2374.759706][    C3] Call Trace:
[ 2374.759707][    C3]  <TASK>
[ 2374.759708][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2374.759710][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2374.759712][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2374.759714][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2374.759716][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2374.759718][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2374.759720][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2374.759722][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2374.759725][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2374.759726][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2374.759729][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2374.759731][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2374.759733][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2374.759735][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2374.759737][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2374.759739][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2374.759741][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2374.759743][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2374.759745][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2374.759747][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2374.759748][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2374.759751][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2374.759753][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2374.759755][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2374.759757][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2374.759758][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2374.759759][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2374.759761][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2374.759763][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2374.759764][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2374.759766][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2374.759768][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2374.759769][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2374.759771][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2374.759772][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2374.759774][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2374.759775][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2374.759777][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2374.759779][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2374.759780][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2374.759782][    C3]  vfs_write (fs/read_write.c:686)
[ 2374.759784][    C3]  ksys_write (fs/read_write.c:739)
[ 2374.759786][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2374.759788][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2374.759790][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2374.759792][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2374.759794][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2374.759795][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2374.759796][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2374.759797][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2374.759798][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2374.759799][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2374.759799][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2374.759800][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2385.221520][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2385.221726][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2385.221938][    C3] NMI backtrace for cpu 3
| [ 2385.221944][    C3] Tainted: [L]=SOFTLOCKUP
[ 2385.221945][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2385.221946][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 2385.221949][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 2385.221951][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 2385.221953][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 2385.221953][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2385.221954][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2385.221955][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2385.221956][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2385.221958][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2385.221960][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2385.221961][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2385.221961][    C3] PKRU: 55555554
[ 2385.221962][    C3] Call Trace:
[ 2385.221964][    C3]  <TASK>
[ 2385.221966][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 2385.221968][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2385.221970][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2385.221972][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2385.221974][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2385.221976][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2385.221978][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2385.221980][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2385.221982][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2385.221985][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2385.221987][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2385.221989][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2385.221991][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2385.221993][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2385.221995][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2385.221997][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2385.221999][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2385.222001][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2385.222003][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2385.222005][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2385.222007][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2385.222008][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2385.222011][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2385.222013][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2385.222015][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2385.222017][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2385.222018][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2385.222019][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2385.222021][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2385.222023][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2385.222024][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2385.222026][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2385.222028][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2385.222029][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2385.222031][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2385.222032][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2385.222034][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2385.222036][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2385.222037][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2385.222039][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2385.222040][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2385.222043][    C3]  vfs_write (fs/read_write.c:686)
[ 2385.222044][    C3]  ksys_write (fs/read_write.c:739)
[ 2385.222046][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2385.222048][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2385.222050][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2385.222052][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2385.222054][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2385.222056][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2385.222057][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2385.222058][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2385.222059][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2385.222060][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2385.222060][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2385.222061][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2412.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2412.385104][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2412.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2412.385113][    C3] Tainted: [L]=SOFTLOCKUP
[ 2412.385114][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2412.385115][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2412.385118][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2412.385119][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2412.385121][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2412.385122][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2412.385123][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2412.385124][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2412.385124][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2412.385127][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2412.385130][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2412.385131][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2412.385132][    C3] PKRU: 55555554
[ 2412.385132][    C3] Call Trace:
[ 2412.385135][    C3]  <TASK>
[ 2412.385136][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2412.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2412.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2412.385143][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2412.385146][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2412.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2412.385150][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2412.385152][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2412.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2412.385157][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2412.385159][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2412.385161][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2412.385163][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2412.385165][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2412.385167][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2412.385169][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2412.385171][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2412.385173][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2412.385175][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2412.385177][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2412.385179][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2412.385182][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2412.385184][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2412.385186][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2412.385188][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2412.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2412.385190][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2412.385192][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2412.385194][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2412.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2412.385197][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2412.385199][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2412.385200][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2412.385202][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2412.385204][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2412.385206][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2412.385207][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2412.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2412.385211][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2412.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2412.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 2412.385217][    C3]  ksys_write (fs/read_write.c:739)
[ 2412.385218][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2412.385220][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2412.385222][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2412.385224][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2412.385227][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2412.385229][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2412.385230][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2412.385231][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2412.385232][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2412.385233][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2412.385234][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2412.385234][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2440.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2440.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2440.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2440.385103][    C3] Tainted: [L]=SOFTLOCKUP
[ 2440.385104][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2440.385105][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2440.385107][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2440.385109][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2440.385110][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2440.385111][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2440.385112][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2440.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2440.385113][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2440.385116][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2440.385118][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2440.385119][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2440.385120][    C3] PKRU: 55555554
[ 2440.385121][    C3] Call Trace:
[ 2440.385123][    C3]  <TASK>
[ 2440.385125][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2440.385127][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2440.385129][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2440.385132][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2440.385134][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2440.385136][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2440.385138][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2440.385140][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2440.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2440.385145][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2440.385147][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2440.385149][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2440.385151][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2440.385153][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2440.385155][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2440.385157][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2440.385160][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2440.385162][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2440.385164][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2440.385165][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2440.385167][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2440.385170][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2440.385172][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2440.385174][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2440.385176][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2440.385177][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2440.385179][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2440.385181][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2440.385182][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2440.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2440.385186][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2440.385187][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2440.385189][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2440.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2440.385192][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2440.385194][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2440.385196][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2440.385197][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2440.385199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2440.385200][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2440.385203][    C3]  vfs_write (fs/read_write.c:686)
[ 2440.385205][    C3]  ksys_write (fs/read_write.c:739)
[ 2440.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2440.385208][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2440.385211][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2440.385213][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2440.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2440.385218][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2440.385219][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2440.385220][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2440.385221][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2440.385222][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2440.385223][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2440.385224][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2452.763071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2452.763271][    C3] rcu: 3-....: (1507509 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=395434
| [ 2452.763487][    C3] rcu: (t=1508071 jiffies g=527745 q=34987 ncpus=4)
| [ 2452.763679][    C3] Tainted: [L]=SOFTLOCKUP
[ 2452.763680][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2452.763681][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2452.763683][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2452.763685][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2452.763686][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2452.763687][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2452.763688][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2452.763689][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2452.763690][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2452.763692][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2452.763694][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2452.763695][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2452.763696][    C3] PKRU: 55555554
[ 2452.763697][    C3] Call Trace:
[ 2452.763697][    C3]  <TASK>
[ 2452.763698][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2452.763700][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2452.763702][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2452.763704][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2452.763706][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2452.763708][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2452.763711][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2452.763713][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2452.763715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2452.763717][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2452.763719][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2452.763722][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2452.763724][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2452.763725][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2452.763727][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2452.763729][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2452.763732][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2452.763734][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2452.763736][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2452.763738][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2452.763739][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2452.763742][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2452.763744][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2452.763746][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2452.763748][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2452.763749][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2452.763751][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2452.763753][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2452.763754][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2452.763755][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2452.763758][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2452.763759][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2452.763761][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2452.763763][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2452.763764][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2452.763766][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2452.763767][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2452.763769][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2452.763770][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2452.763772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2452.763774][    C3]  vfs_write (fs/read_write.c:686)
[ 2452.763776][    C3]  ksys_write (fs/read_write.c:739)
[ 2452.763778][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2452.763780][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2452.763782][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2452.763784][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2452.763785][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2452.763787][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2452.763788][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2452.763789][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2452.763790][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2452.763790][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2452.763791][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2452.763792][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2480.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2480.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2480.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2480.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 2480.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2480.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2480.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2480.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2480.385145][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2480.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2480.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2480.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2480.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2480.385152][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2480.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2480.385157][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2480.385158][    C3] PKRU: 55555554
[ 2480.385158][    C3] Call Trace:
[ 2480.385166][    C3]  <TASK>
[ 2480.385170][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2480.385176][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2480.385178][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2480.385182][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2480.385186][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2480.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2480.385190][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2480.385193][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2480.385196][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2480.385198][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2480.385200][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2480.385202][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2480.385204][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2480.385206][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2480.385208][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2480.385210][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2480.385215][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2480.385217][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2480.385219][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2480.385221][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2480.385223][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2480.385226][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2480.385229][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2480.385231][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2480.385234][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2480.385237][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2480.385239][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2480.385241][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2480.385244][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2480.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2480.385248][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2480.385249][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2480.385251][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2480.385254][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2480.385255][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2480.385257][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2480.385259][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2480.385261][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2480.385262][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2480.385264][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2480.385266][    C3]  vfs_write (fs/read_write.c:686)
[ 2480.385269][    C3]  ksys_write (fs/read_write.c:739)
[ 2480.385271][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2480.385272][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2480.385275][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2480.385278][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2480.385282][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2480.385287][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2480.385288][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2480.385290][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2480.385291][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2480.385292][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2480.385292][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2480.385293][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2483.525462][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2483.525674][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2483.525836][    C3] NMI backtrace for cpu 3
| [ 2483.525845][    C3] Tainted: [L]=SOFTLOCKUP
[ 2483.525846][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2483.525847][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2483.525851][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2483.525852][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2483.525854][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2483.525855][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2483.525856][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2483.525857][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2483.525858][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2483.525860][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2483.525863][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2483.525863][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2483.525864][    C3] PKRU: 55555554
[ 2483.525865][    C3] Call Trace:
[ 2483.525866][    C3]  <TASK>
[ 2483.525868][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2483.525871][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2483.525873][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2483.525876][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2483.525878][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2483.525880][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2483.525882][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2483.525884][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2483.525887][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2483.525889][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2483.525891][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2483.525894][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2483.525896][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2483.525898][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2483.525900][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2483.525902][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2483.525905][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2483.525907][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2483.525909][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2483.525911][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2483.525913][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2483.525916][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2483.525918][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2483.525920][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2483.525922][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2483.525924][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2483.525925][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2483.525928][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2483.525929][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2483.525931][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2483.525933][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2483.525934][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2483.525936][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2483.525938][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2483.525939][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2483.525941][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2483.525942][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2483.525944][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2483.525946][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2483.525947][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2483.525950][    C3]  vfs_write (fs/read_write.c:686)
[ 2483.525952][    C3]  ksys_write (fs/read_write.c:739)
[ 2483.525953][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2483.525955][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2483.525957][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2483.525960][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2483.525962][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2483.525964][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2483.525965][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2483.525966][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2483.525967][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2483.525968][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2483.525968][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2483.525969][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2508.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2508.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2508.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2508.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 2508.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2508.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2508.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2508.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2508.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2508.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2508.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2508.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2508.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2508.385152][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2508.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2508.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2508.385157][    C3] PKRU: 55555554
[ 2508.385158][    C3] Call Trace:
[ 2508.385162][    C3]  <TASK>
[ 2508.385166][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2508.385171][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2508.385173][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2508.385177][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2508.385181][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2508.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2508.385185][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2508.385188][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2508.385191][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2508.385193][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2508.385195][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2508.385198][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2508.385200][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2508.385202][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2508.385204][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2508.385206][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2508.385210][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2508.385212][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2508.385214][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2508.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2508.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2508.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2508.385225][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2508.385227][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2508.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2508.385233][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2508.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2508.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2508.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2508.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2508.385243][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2508.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2508.385247][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2508.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2508.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2508.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2508.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2508.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2508.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2508.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2508.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 2508.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 2508.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2508.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2508.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2508.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2508.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2508.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2508.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2508.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2508.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2508.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2508.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2508.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2530.767072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2530.767292][    C3] rcu: 3-....: (1585481 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=425553
| [ 2530.767562][    C3] rcu: (t=1586075 jiffies g=527745 q=36484 ncpus=4)
| [ 2530.767701][    C3] Tainted: [L]=SOFTLOCKUP
[ 2530.767702][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2530.767704][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2530.767708][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2530.767710][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2530.767712][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2530.767713][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2530.767714][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2530.767715][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2530.767716][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2530.767718][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2530.767722][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2530.767722][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2530.767723][    C3] PKRU: 55555554
[ 2530.767724][    C3] Call Trace:
[ 2530.767726][    C3]  <TASK>
[ 2530.767727][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2530.767730][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2530.767732][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2530.767735][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2530.767737][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2530.767739][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2530.767742][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2530.767744][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2530.767747][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2530.767748][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2530.767751][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2530.767753][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2530.767755][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2530.767757][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2530.767759][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2530.767761][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2530.767764][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2530.767766][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2530.767768][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2530.767770][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2530.767771][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2530.767774][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2530.767776][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2530.767778][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2530.767781][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2530.767783][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2530.767784][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2530.767786][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2530.767788][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2530.767789][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2530.767791][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2530.767793][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2530.767795][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2530.767796][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2530.767798][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2530.767799][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2530.767801][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2530.767803][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2530.767804][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2530.767805][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2530.767808][    C3]  vfs_write (fs/read_write.c:686)
[ 2530.767810][    C3]  ksys_write (fs/read_write.c:739)
[ 2530.767811][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2530.767813][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2530.767815][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2530.767818][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2530.767820][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2530.767822][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2530.767823][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2530.767825][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2530.767826][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2530.767826][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2530.767827][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2530.767828][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2556.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2556.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2556.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2556.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 2556.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2556.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2556.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2556.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2556.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2556.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2556.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2556.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2556.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2556.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2556.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2556.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2556.385123][    C3] PKRU: 55555554
[ 2556.385124][    C3] Call Trace:
[ 2556.385127][    C3]  <TASK>
[ 2556.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2556.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2556.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2556.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2556.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2556.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2556.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2556.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2556.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2556.385149][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2556.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2556.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2556.385156][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2556.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2556.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2556.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2556.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2556.385166][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2556.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2556.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2556.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2556.385174][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2556.385176][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2556.385178][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2556.385180][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2556.385181][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2556.385183][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2556.385185][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2556.385186][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2556.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2556.385190][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2556.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2556.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2556.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2556.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2556.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2556.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2556.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2556.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2556.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2556.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 2556.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 2556.385210][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2556.385212][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2556.385214][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2556.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2556.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2556.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2556.385221][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2556.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2556.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2556.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2556.385225][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2556.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2581.828518][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2581.828725][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2581.828883][    C3] NMI backtrace for cpu 3
| [ 2581.828891][    C3] Tainted: [L]=SOFTLOCKUP
[ 2581.828892][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2581.828893][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2581.828897][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2581.828898][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2581.828900][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2581.828901][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2581.828906][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2581.828907][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2581.828907][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2581.828909][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2581.828912][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2581.828913][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2581.828913][    C3] PKRU: 55555554
[ 2581.828914][    C3] Call Trace:
[ 2581.828917][    C3]  <TASK>
[ 2581.828919][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2581.828922][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2581.828924][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2581.828926][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2581.828928][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2581.828930][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2581.828932][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2581.828935][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2581.828937][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2581.828939][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2581.828941][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2581.828944][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2581.828946][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2581.828947][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2581.828949][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2581.828951][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2581.828954][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2581.828955][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2581.828958][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2581.828959][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2581.828961][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2581.828964][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2581.828966][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2581.828968][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2581.828970][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2581.828971][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2581.828972][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2581.828974][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2581.828976][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2581.828977][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2581.828979][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2581.828981][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2581.828982][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2581.828984][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2581.828985][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2581.828987][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2581.828989][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2581.828990][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2581.828992][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2581.828993][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2581.828996][    C3]  vfs_write (fs/read_write.c:686)
[ 2581.828998][    C3]  ksys_write (fs/read_write.c:739)
[ 2581.828999][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2581.829001][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2581.829003][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2581.829006][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2581.829007][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2581.829009][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2581.829010][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2581.829012][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2581.829012][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2581.829013][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2581.829014][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2581.829014][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2608.385105][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2608.385107][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2608.385109][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2608.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 2608.385116][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2608.385117][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2608.385120][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2608.385122][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2608.385123][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2608.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2608.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2608.385126][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2608.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2608.385129][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2608.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2608.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2608.385133][    C3] PKRU: 55555554
[ 2608.385134][    C3] Call Trace:
[ 2608.385136][    C3]  <TASK>
[ 2608.385139][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2608.385141][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2608.385143][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2608.385146][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2608.385148][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2608.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2608.385152][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2608.385154][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2608.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2608.385159][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2608.385161][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2608.385163][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2608.385166][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2608.385167][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2608.385169][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2608.385171][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2608.385174][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2608.385175][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2608.385177][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2608.385179][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2608.385181][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2608.385184][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2608.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2608.385188][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2608.385190][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2608.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2608.385192][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2608.385194][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2608.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2608.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2608.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2608.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2608.385202][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2608.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2608.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2608.385207][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2608.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2608.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2608.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2608.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2608.385216][    C3]  vfs_write (fs/read_write.c:686)
[ 2608.385218][    C3]  ksys_write (fs/read_write.c:739)
[ 2608.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2608.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2608.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2608.385226][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2608.385228][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2608.385230][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2608.385231][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2608.385233][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2608.385233][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2608.385234][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2608.385235][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2608.385236][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2608.771071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2608.771303][    C3] rcu: 3-....: (1663453 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=456254
| [ 2608.771526][    C3] rcu: (t=1664079 jiffies g=527745 q=37981 ncpus=4)
| [ 2608.771706][    C3] Tainted: [L]=SOFTLOCKUP
[ 2608.771707][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2608.771707][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2608.771710][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2608.771711][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2608.771712][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2608.771713][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2608.771714][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2608.771715][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2608.771716][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2608.771717][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2608.771719][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2608.771720][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2608.771721][    C3] PKRU: 55555554
[ 2608.771721][    C3] Call Trace:
[ 2608.771722][    C3]  <TASK>
[ 2608.771722][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2608.771724][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2608.771726][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2608.771729][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2608.771731][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2608.771732][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2608.771735][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2608.771737][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2608.771739][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2608.771741][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2608.771743][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2608.771746][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2608.771748][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2608.771749][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2608.771751][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2608.771753][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2608.771756][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2608.771757][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2608.771759][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2608.771761][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2608.771763][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2608.771766][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2608.771768][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2608.771769][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2608.771771][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2608.771773][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2608.771774][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2608.771776][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2608.771777][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2608.771778][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2608.771781][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2608.771782][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2608.771784][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2608.771785][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2608.771787][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2608.771788][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2608.771790][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2608.771792][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2608.771793][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2608.771795][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2608.771797][    C3]  vfs_write (fs/read_write.c:686)
[ 2608.771799][    C3]  ksys_write (fs/read_write.c:739)
[ 2608.771800][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2608.771802][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2608.771804][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2608.771806][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2608.771808][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2608.771809][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2608.771810][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2608.771811][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2608.771812][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2608.771812][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2608.771813][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2608.771813][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2636.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2636.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2636.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2636.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 2636.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2636.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2636.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2636.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2636.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2636.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2636.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2636.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2636.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2636.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2636.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2636.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2636.385157][    C3] PKRU: 55555554
[ 2636.385158][    C3] Call Trace:
[ 2636.385161][    C3]  <TASK>
[ 2636.385165][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2636.385170][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2636.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2636.385176][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2636.385180][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2636.385182][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2636.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2636.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2636.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2636.385192][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2636.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2636.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2636.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2636.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2636.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2636.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2636.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2636.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2636.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2636.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2636.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2636.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2636.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2636.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2636.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2636.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2636.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2636.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2636.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2636.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2636.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2636.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2636.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2636.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2636.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2636.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2636.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2636.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2636.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2636.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2636.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 2636.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 2636.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2636.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2636.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2636.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2636.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2636.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2636.385282][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2636.385284][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2636.385285][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2636.385286][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2636.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2636.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2664.385108][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2664.385110][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2664.385113][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2664.385121][    C3] Tainted: [L]=SOFTLOCKUP
[ 2664.385122][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2664.385124][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2664.385126][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2664.385128][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2664.385130][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2664.385131][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2664.385132][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2664.385133][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2664.385134][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2664.385136][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2664.385139][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2664.385140][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2664.385141][    C3] PKRU: 55555554
[ 2664.385142][    C3] Call Trace:
[ 2664.385144][    C3]  <TASK>
[ 2664.385147][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2664.385152][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2664.385154][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2664.385158][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2664.385161][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2664.385163][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2664.385166][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2664.385168][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2664.385171][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2664.385173][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2664.385175][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2664.385178][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2664.385180][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2664.385181][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2664.385183][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2664.385186][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2664.385190][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2664.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2664.385194][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2664.385196][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2664.385198][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2664.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2664.385204][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2664.385206][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2664.385209][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2664.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2664.385214][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2664.385216][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2664.385219][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2664.385220][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2664.385223][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2664.385224][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2664.385226][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2664.385228][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2664.385230][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2664.385232][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2664.385234][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2664.385236][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2664.385237][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2664.385239][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2664.385241][    C3]  vfs_write (fs/read_write.c:686)
[ 2664.385243][    C3]  ksys_write (fs/read_write.c:739)
[ 2664.385245][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2664.385247][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2664.385249][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2664.385253][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2664.385256][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2664.385259][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2664.385260][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2664.385261][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2664.385262][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2664.385263][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2664.385264][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2664.385265][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2680.132520][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2680.132707][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2680.132874][    C3] NMI backtrace for cpu 3
| [ 2680.132893][    C3] Tainted: [L]=SOFTLOCKUP
[ 2680.132894][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2680.132896][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2680.132905][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2680.132907][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2680.132911][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2680.132912][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2680.132913][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2680.132914][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2680.132915][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2680.132918][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2680.132921][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2680.132922][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2680.132923][    C3] PKRU: 55555554
[ 2680.132924][    C3] Call Trace:
[ 2680.132928][    C3]  <TASK>
[ 2680.132931][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2680.132936][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2680.132938][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2680.132942][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2680.132946][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2680.132948][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2680.132952][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2680.132954][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2680.132958][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2680.132959][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2680.132962][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2680.132964][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2680.132966][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2680.132968][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2680.132970][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2680.132972][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2680.132976][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2680.132978][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2680.132981][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2680.132983][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2680.132985][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2680.132988][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2680.132991][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2680.132993][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2680.132996][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2680.132999][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2680.133001][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2680.133003][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2680.133006][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2680.133007][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2680.133010][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2680.133011][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2680.133014][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2680.133015][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2680.133017][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2680.133019][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2680.133021][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2680.133023][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2680.133024][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2680.133026][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2680.133028][    C3]  vfs_write (fs/read_write.c:686)
[ 2680.133030][    C3]  ksys_write (fs/read_write.c:739)
[ 2680.133032][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2680.133034][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2680.133036][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2680.133040][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2680.133043][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2680.133047][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2680.133048][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2680.133050][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2680.133051][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2680.133051][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2680.133052][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2680.133053][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2686.774073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2686.774278][    C3] rcu: 3-....: (1741424 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=487418
| [ 2686.774545][    C3] rcu: (t=1742082 jiffies g=527745 q=39478 ncpus=4)
| [ 2686.774689][    C3] Tainted: [L]=SOFTLOCKUP
[ 2686.774690][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2686.774691][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2686.774696][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2686.774698][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2686.774701][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2686.774702][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2686.774703][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2686.774704][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2686.774705][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2686.774707][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2686.774710][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2686.774710][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2686.774711][    C3] PKRU: 55555554
[ 2686.774712][    C3] Call Trace:
[ 2686.774713][    C3]  <TASK>
[ 2686.774713][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2686.774718][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2686.774720][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2686.774724][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2686.774727][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2686.774728][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2686.774731][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2686.774733][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2686.774736][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2686.774738][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2686.774740][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2686.774742][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2686.774744][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2686.774746][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2686.774748][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2686.774750][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2686.774754][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2686.774756][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2686.774758][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2686.774760][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2686.774762][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2686.774765][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2686.774768][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2686.774769][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2686.774772][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2686.774774][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2686.774776][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2686.774778][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2686.774780][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2686.774781][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2686.774784][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2686.774785][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2686.774788][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2686.774789][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2686.774791][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2686.774793][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2686.774794][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2686.774796][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2686.774797][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2686.774799][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2686.774801][    C3]  vfs_write (fs/read_write.c:686)
[ 2686.774803][    C3]  ksys_write (fs/read_write.c:739)
[ 2686.774805][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2686.774807][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2686.774809][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2686.774812][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2686.774814][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2686.774816][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2686.774817][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2686.774819][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2686.774820][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2686.774820][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2686.774821][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2686.774822][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2712.385103][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2712.385105][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2712.385107][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2712.385114][    C3] Tainted: [L]=SOFTLOCKUP
[ 2712.385115][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2712.385116][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:201)
[ 2712.385120][    C3] Code: 48 39 c1 74 20 80 38 00 74 f2 b9 01 00 00 00 48 85 c0 74 2e 48 39 c3 75 19 45 89 f2 41 83 e2 07 44 3a 13 7d 0d b9 01 00 00 00 <5b> 41 5e 89 c8 41 5f c3 4c 89 c1 0f b6 d2 e8 df e9 ff ff 83 f0 01
All code
========
   0:	48 39 c1             	cmp    %rax,%rcx
   3:	74 20                	je     0x25
   5:	80 38 00             	cmpb   $0x0,(%rax)
   8:	74 f2                	je     0xfffffffffffffffc
   a:	b9 01 00 00 00       	mov    $0x1,%ecx
   f:	48 85 c0             	test   %rax,%rax
  12:	74 2e                	je     0x42
  14:	48 39 c3             	cmp    %rax,%rbx
  17:	75 19                	jne    0x32
  19:	45 89 f2             	mov    %r14d,%r10d
  1c:	41 83 e2 07          	and    $0x7,%r10d
  20:	44 3a 13             	cmp    (%rbx),%r10b
  23:	7d 0d                	jge    0x32
  25:	b9 01 00 00 00       	mov    $0x1,%ecx
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	41 5e                	pop    %r14
  2d:	89 c8                	mov    %ecx,%eax
  2f:	41 5f                	pop    %r15
  31:	c3                   	ret
  32:	4c 89 c1             	mov    %r8,%rcx
  35:	0f b6 d2             	movzbl %dl,%edx
  38:	e8 df e9 ff ff       	call   0xffffffffffffea1c
  3d:	83 f0 01             	xor    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	41 5e                	pop    %r14
   3:	89 c8                	mov    %ecx,%eax
   5:	41 5f                	pop    %r15
   7:	c3                   	ret
   8:	4c 89 c1             	mov    %r8,%rcx
   b:	0f b6 d2             	movzbl %dl,%edx
   e:	e8 df e9 ff ff       	call   0xffffffffffffe9f2
  13:	83 f0 01             	xor    $0x1,%eax
[ 2712.385122][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000246
[ 2712.385123][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: 0000000000000001
[ 2712.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2712.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2712.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2712.385126][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 2712.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2712.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2712.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2712.385133][    C3] PKRU: 55555554
[ 2712.385134][    C3] Call Trace:
[ 2712.385136][    C3]  <TASK>
[ 2712.385139][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 2712.385142][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2712.385145][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2712.385147][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2712.385149][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2712.385152][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2712.385154][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2712.385156][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2712.385158][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2712.385161][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2712.385163][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2712.385165][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2712.385168][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2712.385170][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2712.385171][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2712.385174][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2712.385176][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2712.385178][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2712.385180][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2712.385182][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2712.385184][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2712.385186][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2712.385189][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2712.385192][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2712.385193][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2712.385196][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2712.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2712.385199][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2712.385201][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2712.385202][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2712.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2712.385206][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2712.385208][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2712.385209][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2712.385211][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2712.385212][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2712.385214][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2712.385216][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2712.385217][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2712.385219][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2712.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2712.385223][    C3]  vfs_write (fs/read_write.c:686)
[ 2712.385225][    C3]  ksys_write (fs/read_write.c:739)
[ 2712.385226][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2712.385228][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2712.385230][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2712.385233][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2712.385235][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2712.385238][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2712.385239][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2712.385240][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2712.385241][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2712.385242][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2712.385243][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2712.385243][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2740.385107][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2740.385109][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2740.385111][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2740.385118][    C3] Tainted: [L]=SOFTLOCKUP
[ 2740.385119][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2740.385121][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2740.385123][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2740.385125][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2740.385127][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2740.385128][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2740.385129][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2740.385130][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2740.385130][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2740.385133][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2740.385136][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2740.385137][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2740.385138][    C3] PKRU: 55555554
[ 2740.385139][    C3] Call Trace:
[ 2740.385142][    C3]  <TASK>
[ 2740.385146][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2740.385148][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2740.385151][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2740.385153][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2740.385156][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2740.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2740.385160][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2740.385162][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2740.385165][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2740.385167][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2740.385169][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2740.385172][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2740.385174][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2740.385176][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2740.385178][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2740.385180][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2740.385182][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2740.385184][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2740.385186][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2740.385188][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2740.385190][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2740.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2740.385196][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2740.385198][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2740.385200][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2740.385201][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2740.385202][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2740.385204][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2740.385206][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2740.385207][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2740.385210][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2740.385211][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2740.385213][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2740.385215][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2740.385216][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2740.385218][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2740.385220][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2740.385222][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2740.385223][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2740.385224][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2740.385227][    C3]  vfs_write (fs/read_write.c:686)
[ 2740.385229][    C3]  ksys_write (fs/read_write.c:739)
[ 2740.385231][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2740.385232][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2740.385235][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2740.385237][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2740.385240][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2740.385242][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2740.385244][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2740.385246][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2740.385247][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2740.385248][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2740.385248][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2740.385249][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2764.778072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2764.778274][    C3] rcu: 3-....: (1819403 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=518323
| [ 2764.778545][    C3] rcu: (t=1820086 jiffies g=527745 q=40621 ncpus=4)
| [ 2764.778683][    C3] Tainted: [L]=SOFTLOCKUP
[ 2764.778684][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2764.778685][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2764.778688][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2764.778689][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2764.778691][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2764.778692][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2764.778693][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2764.778694][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2764.778695][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2764.778697][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2764.778700][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2764.778701][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2764.778702][    C3] PKRU: 55555554
[ 2764.778702][    C3] Call Trace:
[ 2764.778703][    C3]  <TASK>
[ 2764.778704][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2764.778706][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2764.778708][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2764.778711][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2764.778713][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2764.778715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2764.778717][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2764.778719][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2764.778722][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2764.778723][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2764.778726][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2764.778728][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2764.778730][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2764.778732][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2764.778734][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2764.778736][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2764.778738][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2764.778740][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2764.778742][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2764.778744][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2764.778746][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2764.778748][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2764.778751][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2764.778752][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2764.778754][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2764.778756][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2764.778757][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2764.778759][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2764.778760][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2764.778761][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2764.778764][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2764.778765][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2764.778767][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2764.778769][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2764.778770][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2764.778772][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2764.778773][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2764.778775][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2764.778776][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2764.778778][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2764.778780][    C3]  vfs_write (fs/read_write.c:686)
[ 2764.778782][    C3]  ksys_write (fs/read_write.c:739)
[ 2764.778784][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2764.778785][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2764.778788][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2764.778790][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2764.778792][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2764.778793][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2764.778794][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2764.778795][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2764.778796][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2764.778797][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2764.778797][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2764.778798][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2778.437520][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2778.437710][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2778.437870][    C3] NMI backtrace for cpu 3
| [ 2778.437876][    C3] Tainted: [L]=SOFTLOCKUP
[ 2778.437877][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2778.437878][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2778.437880][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2778.437882][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2778.437883][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2778.437884][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2778.437885][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2778.437886][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2778.437886][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2778.437888][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2778.437891][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2778.437892][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2778.437893][    C3] PKRU: 55555554
[ 2778.437894][    C3] Call Trace:
[ 2778.437895][    C3]  <TASK>
[ 2778.437897][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2778.437899][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2778.437901][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2778.437903][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2778.437905][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2778.437907][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2778.437909][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2778.437911][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2778.437914][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2778.437916][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2778.437918][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2778.437920][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2778.437922][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2778.437924][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2778.437926][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2778.437928][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2778.437930][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2778.437932][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2778.437934][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2778.437936][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2778.437938][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2778.437940][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2778.437942][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2778.437944][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2778.437946][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2778.437947][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2778.437948][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2778.437951][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2778.437952][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2778.437953][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2778.437956][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2778.437957][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2778.437959][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2778.437961][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2778.437962][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2778.437964][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2778.437965][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2778.437967][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2778.437968][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2778.437970][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2778.437972][    C3]  vfs_write (fs/read_write.c:686)
[ 2778.437974][    C3]  ksys_write (fs/read_write.c:739)
[ 2778.437976][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2778.437977][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2778.437980][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2778.437982][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2778.437984][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2778.437986][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2778.437987][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2778.437988][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2778.437989][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2778.437989][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2778.437990][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2778.437991][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2804.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2804.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2804.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2804.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 2804.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2804.385110][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 2804.385112][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 2804.385114][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 2804.385115][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 2804.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2804.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2804.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2804.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2804.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2804.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2804.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2804.385125][    C3] PKRU: 55555554
[ 2804.385125][    C3] Call Trace:
[ 2804.385128][    C3]  <TASK>
[ 2804.385130][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 2804.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2804.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2804.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2804.385138][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2804.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2804.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2804.385144][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2804.385147][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2804.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2804.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2804.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2804.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2804.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2804.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2804.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2804.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2804.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2804.385168][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2804.385170][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2804.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2804.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2804.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2804.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2804.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2804.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2804.385183][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2804.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2804.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2804.385188][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2804.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2804.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2804.385193][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2804.385194][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2804.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2804.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2804.385199][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2804.385201][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2804.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2804.385204][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2804.385205][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2804.385208][    C3]  vfs_write (fs/read_write.c:686)
[ 2804.385210][    C3]  ksys_write (fs/read_write.c:739)
[ 2804.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2804.385213][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2804.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2804.385218][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2804.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2804.385221][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2804.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2804.385224][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2804.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2804.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2804.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2804.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2832.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2832.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2832.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2832.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 2832.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2832.385101][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 2832.385103][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 2832.385105][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 2832.385106][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 2832.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2832.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2832.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2832.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2832.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2832.385113][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2832.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2832.385115][    C3] PKRU: 55555554
[ 2832.385116][    C3] Call Trace:
[ 2832.385117][    C3]  <TASK>
[ 2832.385119][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 2832.385121][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2832.385123][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2832.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2832.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2832.385130][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2832.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2832.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2832.385136][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2832.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2832.385140][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2832.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2832.385145][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2832.385147][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2832.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2832.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2832.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2832.385155][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2832.385157][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2832.385159][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2832.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2832.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2832.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2832.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2832.385169][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2832.385171][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2832.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2832.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2832.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2832.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2832.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2832.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2832.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2832.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2832.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2832.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2832.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2832.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2832.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2832.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2832.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2832.385197][    C3]  vfs_write (fs/read_write.c:686)
[ 2832.385199][    C3]  ksys_write (fs/read_write.c:739)
[ 2832.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2832.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2832.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2832.385206][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2832.385209][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2832.385210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2832.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2832.385212][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2832.385213][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2832.385214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2832.385215][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2832.385215][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2842.782072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2842.782269][    C3] rcu: 3-....: (1897376 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=548965
| [ 2842.782541][    C3] rcu: (t=1898090 jiffies g=527745 q=42127 ncpus=4)
| [ 2842.782679][    C3] Tainted: [L]=SOFTLOCKUP
[ 2842.782679][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2842.782680][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2842.782683][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2842.782685][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2842.782686][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2842.782687][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2842.782688][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2842.782688][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2842.782689][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2842.782691][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2842.782693][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2842.782694][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2842.782695][    C3] PKRU: 55555554
[ 2842.782695][    C3] Call Trace:
[ 2842.782696][    C3]  <TASK>
[ 2842.782697][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2842.782699][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2842.782701][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2842.782704][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2842.782706][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2842.782707][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2842.782710][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2842.782712][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2842.782714][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2842.782716][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2842.782718][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2842.782721][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2842.782723][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2842.782724][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2842.782726][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2842.782728][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2842.782731][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2842.782732][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2842.782735][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2842.782736][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2842.782738][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2842.782741][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2842.782743][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2842.782745][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2842.782746][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2842.782748][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2842.782749][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2842.782751][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2842.782752][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2842.782754][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2842.782756][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2842.782758][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2842.782759][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2842.782761][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2842.782762][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2842.782764][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2842.782765][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2842.782767][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2842.782768][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2842.782770][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2842.782772][    C3]  vfs_write (fs/read_write.c:686)
[ 2842.782774][    C3]  ksys_write (fs/read_write.c:739)
[ 2842.782776][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2842.782778][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2842.782780][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2842.782782][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2842.782784][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2842.782785][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2842.782786][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2842.782787][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2842.782788][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2842.782788][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2842.782789][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2842.782789][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2868.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2868.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2868.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2868.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 2868.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2868.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2868.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2868.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2868.385107][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2868.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2868.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2868.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2868.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2868.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2868.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2868.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2868.385115][    C3] PKRU: 55555554
[ 2868.385116][    C3] Call Trace:
[ 2868.385118][    C3]  <TASK>
[ 2868.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2868.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2868.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2868.385127][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2868.385129][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2868.385131][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2868.385133][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2868.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2868.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2868.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2868.385142][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2868.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2868.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2868.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2868.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2868.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2868.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2868.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2868.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2868.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2868.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2868.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2868.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2868.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2868.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2868.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2868.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2868.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2868.385176][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2868.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2868.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2868.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2868.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2868.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2868.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2868.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2868.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2868.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2868.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2868.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2868.385197][    C3]  vfs_write (fs/read_write.c:686)
[ 2868.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 2868.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2868.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2868.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2868.385206][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2868.385209][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2868.385211][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2868.385212][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2868.385213][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2868.385214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2868.385214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2868.385215][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2868.385216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2876.740540][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2876.740718][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2876.740887][    C3] NMI backtrace for cpu 3
| [ 2876.740893][    C3] Tainted: [L]=SOFTLOCKUP
[ 2876.740894][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2876.740895][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2876.740898][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2876.740899][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2876.740901][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2876.740902][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2876.740902][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2876.740904][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2876.740904][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2876.740906][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2876.740909][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2876.740910][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2876.740911][    C3] PKRU: 55555554
[ 2876.740911][    C3] Call Trace:
[ 2876.740913][    C3]  <TASK>
[ 2876.740916][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2876.740918][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2876.740920][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2876.740922][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2876.740924][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2876.740926][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2876.740928][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2876.740931][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2876.740933][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2876.740935][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2876.740937][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2876.740940][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2876.740942][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2876.740943][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2876.740945][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2876.740947][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2876.740950][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2876.740952][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2876.740954][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2876.740956][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2876.740957][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2876.740960][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2876.740963][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2876.740964][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2876.740966][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2876.740968][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2876.740969][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2876.740971][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2876.740973][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2876.740974][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2876.740976][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2876.740978][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2876.740979][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2876.740981][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2876.740982][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2876.740984][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2876.740986][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2876.740987][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2876.740989][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2876.740991][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2876.740993][    C3]  vfs_write (fs/read_write.c:686)
[ 2876.740995][    C3]  ksys_write (fs/read_write.c:739)
[ 2876.740997][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2876.740998][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2876.741001][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2876.741003][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2876.741005][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2876.741007][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2876.741008][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2876.741009][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2876.741010][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2876.741011][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2876.741011][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2876.741012][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2904.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2904.385098][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2904.385100][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2904.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 2904.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2904.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2904.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2904.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2904.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2904.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2904.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2904.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2904.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2904.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2904.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2904.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2904.385122][    C3] PKRU: 55555554
[ 2904.385123][    C3] Call Trace:
[ 2904.385125][    C3]  <TASK>
[ 2904.385126][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2904.385128][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2904.385130][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2904.385133][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2904.385135][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2904.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2904.385139][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2904.385141][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2904.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2904.385146][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2904.385148][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2904.385151][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2904.385153][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2904.385154][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2904.385156][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2904.385158][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2904.385161][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2904.385163][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2904.385165][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2904.385167][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2904.385168][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2904.385171][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2904.385174][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2904.385175][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2904.385177][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2904.385179][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2904.385180][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2904.385182][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2904.385184][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2904.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2904.385188][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2904.385189][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2904.385191][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2904.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2904.385194][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2904.385196][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2904.385197][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2904.385199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2904.385201][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2904.385202][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2904.385205][    C3]  vfs_write (fs/read_write.c:686)
[ 2904.385207][    C3]  ksys_write (fs/read_write.c:739)
[ 2904.385208][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2904.385210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2904.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2904.385215][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2904.385217][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2904.385219][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2904.385220][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2904.385221][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2904.385222][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2904.385223][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2904.385223][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2904.385224][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2920.786072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2920.786344][    C3] rcu: 3-....: (1975349 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=579349
| [ 2920.786560][    C3] rcu: (t=1976094 jiffies g=527745 q=43630 ncpus=4)
| [ 2920.786694][    C3] Tainted: [L]=SOFTLOCKUP
[ 2920.786694][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2920.786695][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2920.786698][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2920.786699][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2920.786700][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2920.786701][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2920.786702][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2920.786702][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2920.786703][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2920.786705][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2920.786711][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2920.786712][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2920.786713][    C3] PKRU: 55555554
[ 2920.786714][    C3] Call Trace:
[ 2920.786715][    C3]  <TASK>
[ 2920.786716][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2920.786718][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2920.786720][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2920.786722][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2920.786724][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2920.786726][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2920.786729][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2920.786731][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2920.786734][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2920.786735][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2920.786738][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2920.786740][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2920.786742][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2920.786744][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2920.786746][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2920.786748][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2920.786750][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2920.786752][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2920.786754][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2920.786756][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2920.786758][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2920.786761][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2920.786763][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2920.786765][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2920.786767][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2920.786768][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2920.786769][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2920.786771][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2920.786773][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2920.786774][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2920.786777][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2920.786778][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2920.786780][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2920.786782][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2920.786783][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2920.786785][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2920.786787][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2920.786788][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2920.786790][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2920.786791][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2920.786794][    C3]  vfs_write (fs/read_write.c:686)
[ 2920.786796][    C3]  ksys_write (fs/read_write.c:739)
[ 2920.786797][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2920.786799][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2920.786801][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2920.786804][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2920.786805][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2920.786807][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2920.786808][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2920.786809][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2920.786810][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2920.786810][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2920.786811][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2920.786812][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2948.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 2948.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 2948.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 2948.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 2948.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2948.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2948.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2948.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2948.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2948.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2948.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2948.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2948.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2948.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2948.385113][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2948.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2948.385115][    C3] PKRU: 55555554
[ 2948.385116][    C3] Call Trace:
[ 2948.385118][    C3]  <TASK>
[ 2948.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2948.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2948.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2948.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2948.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2948.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2948.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2948.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2948.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2948.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2948.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2948.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2948.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2948.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2948.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2948.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2948.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2948.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2948.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2948.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2948.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2948.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2948.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2948.385169][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2948.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2948.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2948.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2948.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2948.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2948.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2948.385181][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2948.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2948.385184][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2948.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2948.385187][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2948.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2948.385191][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2948.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2948.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2948.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2948.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 2948.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 2948.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2948.385204][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2948.385206][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2948.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2948.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2948.385212][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2948.385213][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2948.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2948.385215][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2948.385216][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2948.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2948.385217][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2975.044564][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 2975.044759][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 2975.044935][    C3] NMI backtrace for cpu 3
| [ 2975.044942][    C3] Tainted: [L]=SOFTLOCKUP
[ 2975.044943][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2975.044944][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 2975.044948][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 2975.044949][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 2975.044951][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 2975.044952][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2975.044952][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2975.044953][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2975.044954][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 2975.044956][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2975.044958][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2975.044959][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2975.044960][    C3] PKRU: 55555554
[ 2975.044961][    C3] Call Trace:
[ 2975.044963][    C3]  <TASK>
[ 2975.044965][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2975.044967][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2975.044969][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2975.044972][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2975.044974][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2975.044976][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2975.044978][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2975.044980][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2975.044983][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2975.044985][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2975.044987][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2975.044990][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2975.044992][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2975.044993][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2975.044995][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2975.044997][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2975.045000][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2975.045002][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2975.045004][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2975.045006][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2975.045007][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2975.045010][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2975.045012][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2975.045014][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2975.045016][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2975.045018][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2975.045019][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2975.045021][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2975.045023][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2975.045024][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2975.045027][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2975.045028][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2975.045030][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2975.045032][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2975.045033][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2975.045035][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2975.045036][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2975.045038][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2975.045040][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2975.045041][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2975.045044][    C3]  vfs_write (fs/read_write.c:686)
[ 2975.045046][    C3]  ksys_write (fs/read_write.c:739)
[ 2975.045047][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2975.045049][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2975.045051][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2975.045054][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2975.045056][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2975.045058][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2975.045059][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2975.045060][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2975.045061][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2975.045062][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2975.045062][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2975.045063][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 2998.790071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 2998.790368][    C3] rcu: 3-....: (2053330 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=610091
| [ 2998.790596][    C3] rcu: (t=2054098 jiffies g=527745 q=44743 ncpus=4)
| [ 2998.790781][    C3] Tainted: [L]=SOFTLOCKUP
[ 2998.790782][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 2998.790784][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:97 mm/kasan/generic.c:115 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 2998.790787][    C3] Code: 4c 89 d1 4c 89 d8 4c 29 d9 e9 19 ff ff ff 48 85 c9 74 8c 4c 01 c9 eb 1b 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 48 83 c0 01 <48> 39 c8 0f 84 6c ff ff ff 80 38 00 74 ee e9 47 ff ff ff b8 01 00
All code
========
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 89 d8             	mov    %r11,%rax
   6:	4c 29 d9             	sub    %r11,%rcx
   9:	e9 19 ff ff ff       	jmp    0xffffffffffffff27
   e:	48 85 c9             	test   %rcx,%rcx
  11:	74 8c                	je     0xffffffffffffff9f
  13:	4c 01 c9             	add    %r9,%rcx
  16:	eb 1b                	jmp    0x33
  18:	0f 1f 00             	nopl   (%rax)
  1b:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  22:	00 00 00 00 
  26:	48 83 c0 01          	add    $0x1,%rax
  2a:*	48 39 c8             	cmp    %rcx,%rax		<-- trapping instruction
  2d:	0f 84 6c ff ff ff    	je     0xffffffffffffff9f
  33:	80 38 00             	cmpb   $0x0,(%rax)
  36:	74 ee                	je     0x26
  38:	e9 47 ff ff ff       	jmp    0xffffffffffffff84
  3d:	b8                   	.byte 0xb8
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 39 c8             	cmp    %rcx,%rax
   3:	0f 84 6c ff ff ff    	je     0xffffffffffffff75
   9:	80 38 00             	cmpb   $0x0,(%rax)
   c:	74 ee                	je     0xfffffffffffffffc
   e:	e9 47 ff ff ff       	jmp    0xffffffffffffff5a
  13:	b8                   	.byte 0xb8
  14:	01 00                	add    %eax,(%rax)
[ 2998.790788][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000286
[ 2998.790791][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: ffe21c000221716a
[ 2998.790792][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 2998.790792][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 2998.790793][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 2998.790794][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 2998.790796][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 2998.790798][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2998.790799][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 2998.790800][    C3] PKRU: 55555554
[ 2998.790801][    C3] Call Trace:
[ 2998.790802][    C3]  <TASK>
[ 2998.790803][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 2998.790805][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 2998.790807][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 2998.790809][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 2998.790812][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 2998.790814][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 2998.790815][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2998.790818][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 2998.790820][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 2998.790822][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 2998.790824][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 2998.790827][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 2998.790829][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 2998.790831][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 2998.790833][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 2998.790835][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 2998.790837][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 2998.790839][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 2998.790841][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2998.790843][    C3]  ? release_sock (net/core/sock.c:3794)
[ 2998.790845][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 2998.790847][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 2998.790850][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2998.790852][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 2998.790853][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 2998.790856][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 2998.790857][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2998.790858][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 2998.790860][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 2998.790862][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 2998.790863][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2998.790865][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 2998.790867][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 2998.790868][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 2998.790870][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 2998.790872][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 2998.790873][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 2998.790875][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 2998.790877][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 2998.790878][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 2998.790880][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 2998.790882][    C3]  vfs_write (fs/read_write.c:686)
[ 2998.790884][    C3]  ksys_write (fs/read_write.c:739)
[ 2998.790886][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 2998.790887][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 2998.790890][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 2998.790892][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 2998.790893][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 2998.790895][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 2998.790896][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 2998.790897][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 2998.790898][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 2998.790898][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 2998.790899][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 2998.790900][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3024.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3024.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3024.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3024.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 3024.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3024.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3024.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3024.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3024.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3024.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3024.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3024.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3024.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3024.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3024.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3024.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3024.385115][    C3] PKRU: 55555554
[ 3024.385116][    C3] Call Trace:
[ 3024.385118][    C3]  <TASK>
[ 3024.385119][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3024.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3024.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3024.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3024.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3024.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3024.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3024.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3024.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3024.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3024.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3024.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3024.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3024.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3024.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3024.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3024.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3024.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3024.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3024.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3024.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3024.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3024.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3024.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3024.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3024.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3024.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3024.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3024.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3024.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3024.385181][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3024.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3024.385184][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3024.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3024.385187][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3024.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3024.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3024.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3024.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3024.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3024.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 3024.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 3024.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3024.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3024.385206][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3024.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3024.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3024.385212][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3024.385213][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3024.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3024.385215][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3024.385215][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3024.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3024.385217][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3052.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3052.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3052.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3052.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 3052.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3052.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3052.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3052.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3052.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3052.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3052.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3052.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3052.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3052.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3052.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3052.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3052.385116][    C3] PKRU: 55555554
[ 3052.385116][    C3] Call Trace:
[ 3052.385119][    C3]  <TASK>
[ 3052.385121][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3052.385123][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3052.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3052.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3052.385130][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3052.385131][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3052.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3052.385136][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3052.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3052.385141][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3052.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3052.385146][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3052.385148][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3052.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3052.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3052.385154][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3052.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3052.385158][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3052.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3052.385162][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3052.385164][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3052.385167][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3052.385170][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3052.385171][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3052.385173][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3052.385175][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3052.385176][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3052.385178][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3052.385180][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3052.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3052.385184][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3052.385185][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3052.385187][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3052.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3052.385190][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3052.385192][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3052.385193][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3052.385195][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3052.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3052.385198][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3052.385201][    C3]  vfs_write (fs/read_write.c:686)
[ 3052.385203][    C3]  ksys_write (fs/read_write.c:739)
[ 3052.385205][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3052.385206][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3052.385208][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3052.385211][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3052.385213][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3052.385215][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3052.385216][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3052.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3052.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3052.385219][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3052.385219][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3052.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3073.349522][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3073.349724][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3073.349922][    C3] NMI backtrace for cpu 3
| [ 3073.349929][    C3] Tainted: [L]=SOFTLOCKUP
[ 3073.349930][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3073.349931][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3073.349934][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3073.349935][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3073.349937][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3073.349938][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3073.349939][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3073.349940][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3073.349940][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3073.349943][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3073.349945][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3073.349946][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3073.349947][    C3] PKRU: 55555554
[ 3073.349948][    C3] Call Trace:
[ 3073.349950][    C3]  <TASK>
[ 3073.349952][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3073.349954][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3073.349956][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3073.349959][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3073.349961][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3073.349963][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3073.349965][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3073.349967][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3073.349970][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3073.349972][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3073.349974][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3073.349977][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3073.349979][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3073.349981][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3073.349983][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3073.349985][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3073.349987][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3073.349989][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3073.349991][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3073.349993][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3073.349995][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3073.349998][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3073.350000][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3073.350002][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3073.350004][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3073.350005][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3073.350007][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3073.350009][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3073.350010][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3073.350011][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3073.350014][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3073.350015][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3073.350017][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3073.350019][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3073.350020][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3073.350022][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3073.350024][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3073.350025][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3073.350027][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3073.350028][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3073.350031][    C3]  vfs_write (fs/read_write.c:686)
[ 3073.350033][    C3]  ksys_write (fs/read_write.c:739)
[ 3073.350035][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3073.350037][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3073.350039][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3073.350041][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3073.350043][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3073.350045][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3073.350046][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3073.350047][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3073.350048][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3073.350049][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3073.350049][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3073.350050][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3076.794072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3076.794276][    C3] rcu: 3-....: (2131303 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=641230
| [ 3076.794550][    C3] rcu: (t=2132102 jiffies g=527745 q=46243 ncpus=4)
| [ 3076.794696][    C3] Tainted: [L]=SOFTLOCKUP
[ 3076.794696][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3076.794697][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3076.794701][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3076.794703][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3076.794705][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3076.794706][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3076.794707][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3076.794708][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3076.794709][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3076.794711][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3076.794713][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3076.794714][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3076.794715][    C3] PKRU: 55555554
[ 3076.794716][    C3] Call Trace:
[ 3076.794716][    C3]  <TASK>
[ 3076.794717][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3076.794721][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3076.794723][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3076.794726][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3076.794728][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3076.794730][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3076.794733][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3076.794735][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3076.794738][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3076.794740][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3076.794742][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3076.794744][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3076.794747][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3076.794748][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3076.794750][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3076.794752][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3076.794755][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3076.794757][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3076.794759][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3076.794761][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3076.794762][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3076.794765][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3076.794768][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3076.794770][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3076.794772][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3076.794774][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3076.794776][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3076.794778][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3076.794780][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3076.794781][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3076.794784][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3076.794785][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3076.794787][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3076.794789][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3076.794790][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3076.794792][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3076.794794][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3076.794796][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3076.794797][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3076.794799][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3076.794801][    C3]  vfs_write (fs/read_write.c:686)
[ 3076.794803][    C3]  ksys_write (fs/read_write.c:739)
[ 3076.794805][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3076.794807][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3076.794809][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3076.794812][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3076.794814][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3076.794815][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3076.794816][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3076.794818][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3076.794818][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3076.794819][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3076.794820][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3076.794820][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3104.385119][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3104.385121][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3104.385124][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3104.385133][    C3] Tainted: [L]=SOFTLOCKUP
[ 3104.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3104.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3104.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3104.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3104.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3104.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3104.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3104.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3104.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3104.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3104.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3104.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3104.385156][    C3] PKRU: 55555554
[ 3104.385157][    C3] Call Trace:
[ 3104.385161][    C3]  <TASK>
[ 3104.385165][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3104.385171][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3104.385173][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3104.385177][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3104.385181][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3104.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3104.385185][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3104.385188][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3104.385191][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3104.385193][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3104.385195][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3104.385198][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3104.385200][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3104.385202][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3104.385204][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3104.385206][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3104.385211][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3104.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3104.385215][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3104.385217][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3104.385219][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3104.385223][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3104.385226][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3104.385227][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3104.385231][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3104.385234][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3104.385235][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3104.385238][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3104.385240][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3104.385242][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3104.385244][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3104.385246][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3104.385248][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3104.385251][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3104.385252][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3104.385255][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3104.385256][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3104.385258][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3104.385260][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3104.385261][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3104.385264][    C3]  vfs_write (fs/read_write.c:686)
[ 3104.385266][    C3]  ksys_write (fs/read_write.c:739)
[ 3104.385268][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3104.385270][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3104.385272][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3104.385275][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3104.385279][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3104.385284][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3104.385285][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3104.385287][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3104.385288][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3104.385289][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3104.385289][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3104.385290][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3132.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3132.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3132.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3132.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 3132.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3132.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3132.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3132.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3132.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3132.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3132.385145][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3132.385146][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3132.385147][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3132.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3132.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3132.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3132.385156][    C3] PKRU: 55555554
[ 3132.385157][    C3] Call Trace:
[ 3132.385161][    C3]  <TASK>
[ 3132.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3132.385170][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3132.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3132.385176][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3132.385181][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3132.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3132.385185][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3132.385188][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3132.385191][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3132.385193][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3132.385195][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3132.385198][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3132.385200][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3132.385202][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3132.385204][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3132.385206][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3132.385211][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3132.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3132.385215][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3132.385217][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3132.385219][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3132.385223][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3132.385226][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3132.385228][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3132.385231][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3132.385234][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3132.385236][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3132.385238][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3132.385241][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3132.385242][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3132.385244][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3132.385246][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3132.385248][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3132.385250][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3132.385252][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3132.385255][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3132.385256][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3132.385258][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3132.385259][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3132.385261][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3132.385264][    C3]  vfs_write (fs/read_write.c:686)
[ 3132.385266][    C3]  ksys_write (fs/read_write.c:739)
[ 3132.385268][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3132.385270][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3132.385272][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3132.385276][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3132.385279][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3132.385283][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3132.385284][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3132.385286][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3132.385287][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3132.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3132.385288][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3132.385289][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3154.797073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3154.797340][    C3] rcu: 3-....: (2209282 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=673007
| [ 3154.797610][    C3] rcu: (t=2210105 jiffies g=527745 q=47380 ncpus=4)
| [ 3154.797831][    C3] Tainted: [L]=SOFTLOCKUP
[ 3154.797832][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3154.797834][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3154.797844][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3154.797846][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3154.797849][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3154.797851][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3154.797851][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3154.797852][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3154.797853][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3154.797856][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3154.797859][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3154.797860][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3154.797861][    C3] PKRU: 55555554
[ 3154.797862][    C3] Call Trace:
[ 3154.797863][    C3]  <TASK>
[ 3154.797864][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3154.797869][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3154.797871][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3154.797875][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3154.797879][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3154.797880][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3154.797884][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3154.797886][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3154.797889][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3154.797891][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3154.797893][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3154.797896][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3154.797898][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3154.797900][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3154.797902][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3154.797904][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3154.797908][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3154.797910][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3154.797912][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3154.797914][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3154.797916][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3154.797919][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3154.797922][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3154.797924][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3154.797927][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3154.797930][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3154.797931][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3154.797933][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3154.797936][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3154.797937][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3154.797939][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3154.797941][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3154.797943][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3154.797945][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3154.797947][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3154.797948][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3154.797950][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3154.797952][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3154.797953][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3154.797955][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3154.797957][    C3]  vfs_write (fs/read_write.c:686)
[ 3154.797959][    C3]  ksys_write (fs/read_write.c:739)
[ 3154.797961][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3154.797963][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3154.797965][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3154.797969][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3154.797971][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3154.797974][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3154.797976][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3154.797977][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3154.797978][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3154.797979][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3154.797980][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3154.797981][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3171.652495][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3171.652669][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3171.652874][    C3] NMI backtrace for cpu 3
| [ 3171.652882][    C3] Tainted: [L]=SOFTLOCKUP
[ 3171.652883][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3171.652884][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3171.652889][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3171.652890][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3171.652892][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3171.652893][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3171.652894][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3171.652895][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3171.652896][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3171.652898][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3171.652900][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3171.652901][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3171.652902][    C3] PKRU: 55555554
[ 3171.652903][    C3] Call Trace:
[ 3171.652904][    C3]  <TASK>
[ 3171.652907][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3171.652910][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3171.652912][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3171.652915][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3171.652918][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3171.652920][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3171.652924][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3171.652926][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3171.652929][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3171.652931][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3171.652933][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3171.652936][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3171.652938][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3171.652939][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3171.652941][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3171.652944][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3171.652947][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3171.652949][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3171.652951][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3171.652953][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3171.652955][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3171.652958][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3171.652960][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3171.652962][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3171.652965][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3171.652966][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3171.652968][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3171.652970][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3171.652972][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3171.652973][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3171.652976][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3171.652977][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3171.652979][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3171.652981][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3171.652982][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3171.652984][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3171.652986][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3171.652988][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3171.652989][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3171.652991][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3171.652993][    C3]  vfs_write (fs/read_write.c:686)
[ 3171.652995][    C3]  ksys_write (fs/read_write.c:739)
[ 3171.652997][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3171.652999][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3171.653001][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3171.653005][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3171.653007][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3171.653009][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3171.653010][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3171.653012][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3171.653012][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3171.653013][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3171.653014][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3171.653015][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3196.385106][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3196.385107][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3196.385110][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3196.385116][    C3] Tainted: [L]=SOFTLOCKUP
[ 3196.385117][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3196.385118][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3196.385120][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3196.385121][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3196.385123][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3196.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3196.385124][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3196.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3196.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3196.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3196.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3196.385131][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3196.385132][    C3] PKRU: 55555554
[ 3196.385133][    C3] Call Trace:
[ 3196.385135][    C3]  <TASK>
[ 3196.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3196.385140][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3196.385142][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3196.385144][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3196.385147][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3196.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3196.385151][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3196.385153][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3196.385156][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3196.385158][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3196.385160][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3196.385162][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3196.385165][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3196.385166][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3196.385169][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3196.385171][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3196.385173][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3196.385175][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3196.385177][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3196.385179][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3196.385181][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3196.385184][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3196.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3196.385188][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3196.385190][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3196.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3196.385193][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3196.385195][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3196.385197][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3196.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3196.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3196.385202][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3196.385204][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3196.385205][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3196.385207][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3196.385209][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3196.385210][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3196.385212][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3196.385214][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3196.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3196.385218][    C3]  vfs_write (fs/read_write.c:686)
[ 3196.385220][    C3]  ksys_write (fs/read_write.c:739)
[ 3196.385221][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3196.385223][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3196.385225][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3196.385228][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3196.385230][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3196.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3196.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3196.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3196.385235][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3196.385235][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3196.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3196.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3224.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3224.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3224.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3224.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 3224.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3224.385103][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:182 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[ 3224.385107][    C3] Code: 00 00 00 f3 0f 1e fa 48 89 f2 be f8 00 00 00 e9 5f 91 ab 01 0f 1f 40 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 48 85 f6 <0f> 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	48 89 f2             	mov    %rsi,%rdx
   a:	be f8 00 00 00       	mov    $0xf8,%esi
   f:	e9 5f 91 ab 01       	jmp    0x1ab9173
  14:	0f 1f 40 00          	nopl   0x0(%rax)
  18:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  1f:	00 00 00 00 
  23:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  27:	48 85 f6             	test   %rsi,%rsi
  2a:*	0f 84 9a 01 00 00    	je     0x1ca		<-- trapping instruction
  30:	48 89 f8             	mov    %rdi,%rax
  33:	41 57                	push   %r15
  35:	49 89 c8             	mov    %rcx,%r8
  38:	48 01 f0             	add    %rsi,%rax
  3b:	41 56                	push   %r14
  3d:	53                   	push   %rbx
  3e:	0f                   	.byte 0xf
  3f:	82                   	.byte 0x82

Code starting with the faulting instruction
===========================================
   0:	0f 84 9a 01 00 00    	je     0x1a0
   6:	48 89 f8             	mov    %rdi,%rax
   9:	41 57                	push   %r15
   b:	49 89 c8             	mov    %rcx,%r8
   e:	48 01 f0             	add    %rsi,%rax
  11:	41 56                	push   %r14
  13:	53                   	push   %rbx
  14:	0f                   	.byte 0xf
  15:	82                   	.byte 0x82
[ 3224.385108][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[ 3224.385109][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 3224.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3224.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3224.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3224.385112][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3224.385114][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3224.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3224.385118][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3224.385119][    C3] PKRU: 55555554
[ 3224.385119][    C3] Call Trace:
[ 3224.385122][    C3]  <TASK>
[ 3224.385123][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 3224.385126][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3224.385128][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3224.385130][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3224.385132][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3224.385135][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3224.385136][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3224.385139][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3224.385141][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3224.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3224.385145][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3224.385148][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3224.385150][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3224.385152][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3224.385154][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3224.385156][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3224.385158][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3224.385160][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3224.385162][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3224.385164][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3224.385166][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3224.385168][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3224.385171][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3224.385173][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3224.385175][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3224.385177][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3224.385178][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3224.385180][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3224.385182][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3224.385183][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3224.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3224.385190][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3224.385192][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3224.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3224.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3224.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3224.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3224.385200][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3224.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3224.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3224.385205][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3224.385207][    C3]  vfs_write (fs/read_write.c:686)
[ 3224.385209][    C3]  ksys_write (fs/read_write.c:739)
[ 3224.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3224.385213][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3224.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3224.385218][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3224.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3224.385222][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3224.385223][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3224.385224][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3224.385225][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3224.385226][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3224.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3224.385227][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3232.801071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3232.801319][    C3] rcu: 3-....: (2287254 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=704249
| [ 3232.801592][    C3] rcu: (t=2288109 jiffies g=527745 q=48880 ncpus=4)
| [ 3232.801735][    C3] Tainted: [L]=SOFTLOCKUP
[ 3232.801736][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3232.801737][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3232.801739][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3232.801741][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3232.801742][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3232.801743][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3232.801743][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3232.801744][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3232.801745][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3232.801747][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3232.801749][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3232.801750][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3232.801751][    C3] PKRU: 55555554
[ 3232.801751][    C3] Call Trace:
[ 3232.801753][    C3]  <TASK>
[ 3232.801753][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3232.801755][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3232.801758][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3232.801760][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3232.801762][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3232.801764][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3232.801766][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3232.801768][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3232.801771][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3232.801773][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3232.801775][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3232.801778][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3232.801780][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3232.801781][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3232.801783][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3232.801785][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3232.801788][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3232.801790][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3232.801792][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3232.801794][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3232.801795][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3232.801798][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3232.801800][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3232.801802][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3232.801804][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3232.801806][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3232.801807][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3232.801809][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3232.801811][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3232.801812][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3232.801815][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3232.801816][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3232.801818][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3232.801819][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3232.801821][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3232.801822][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3232.801824][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3232.801826][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3232.801827][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3232.801829][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3232.801831][    C3]  vfs_write (fs/read_write.c:686)
[ 3232.801833][    C3]  ksys_write (fs/read_write.c:739)
[ 3232.801835][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3232.801837][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3232.801839][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3232.801841][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3232.801843][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3232.801844][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3232.801845][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3232.801846][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3232.801847][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3232.801848][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3232.801849][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3232.801849][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3260.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3260.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3260.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3260.385098][    C3] Tainted: [L]=SOFTLOCKUP
[ 3260.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3260.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3260.385102][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3260.385103][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3260.385105][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3260.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3260.385106][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3260.385107][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3260.385108][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3260.385110][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3260.385112][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3260.385113][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3260.385114][    C3] PKRU: 55555554
[ 3260.385114][    C3] Call Trace:
[ 3260.385116][    C3]  <TASK>
[ 3260.385118][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3260.385120][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3260.385122][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3260.385124][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3260.385127][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3260.385128][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3260.385131][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3260.385133][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3260.385135][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3260.385137][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3260.385139][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3260.385142][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3260.385144][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3260.385146][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3260.385148][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3260.385150][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3260.385152][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3260.385154][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3260.385156][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3260.385158][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3260.385160][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3260.385163][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3260.385165][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3260.385167][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3260.385169][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3260.385171][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3260.385172][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3260.385174][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3260.385176][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3260.385177][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3260.385179][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3260.385181][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3260.385182][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3260.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3260.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3260.385187][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3260.385189][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3260.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3260.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3260.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3260.385196][    C3]  vfs_write (fs/read_write.c:686)
[ 3260.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 3260.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3260.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3260.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3260.385206][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3260.385208][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3260.385210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3260.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3260.385212][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3260.385213][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3260.385214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3260.385214][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3260.385215][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3269.956472][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3269.956697][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3269.956862][    C3] NMI backtrace for cpu 3
| [ 3269.956868][    C3] Tainted: [L]=SOFTLOCKUP
[ 3269.956869][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3269.956870][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3269.956873][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3269.956875][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3269.956876][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3269.956877][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3269.956878][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3269.956878][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3269.956879][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3269.956881][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3269.956884][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3269.956885][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3269.956886][    C3] PKRU: 55555554
[ 3269.956886][    C3] Call Trace:
[ 3269.956887][    C3]  <TASK>
[ 3269.956889][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3269.956891][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3269.956893][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3269.956896][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3269.956898][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3269.956900][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3269.956902][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3269.956904][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3269.956907][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3269.956909][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3269.956911][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3269.956913][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3269.956916][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3269.956917][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3269.956919][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3269.956921][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3269.956924][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3269.956925][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3269.956928][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3269.956930][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3269.956931][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3269.956934][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3269.956936][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3269.956938][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3269.956940][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3269.956941][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3269.956943][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3269.956945][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3269.956946][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3269.956948][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3269.956950][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3269.956951][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3269.956953][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3269.956955][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3269.956956][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3269.956958][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3269.956960][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3269.956961][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3269.956963][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3269.956964][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3269.956967][    C3]  vfs_write (fs/read_write.c:686)
[ 3269.956969][    C3]  ksys_write (fs/read_write.c:739)
[ 3269.956970][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3269.956972][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3269.956974][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3269.956977][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3269.956979][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3269.956980][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3269.956982][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3269.956983][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3269.956983][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3269.956984][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3269.956985][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3269.956985][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3296.385103][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3296.385105][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3296.385107][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3296.385114][    C3] Tainted: [L]=SOFTLOCKUP
[ 3296.385115][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3296.385116][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 3296.385119][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 3296.385121][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 3296.385122][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 3296.385123][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3296.385124][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3296.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3296.385125][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3296.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3296.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3296.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3296.385133][    C3] PKRU: 55555554
[ 3296.385134][    C3] Call Trace:
[ 3296.385138][    C3]  <TASK>
[ 3296.385140][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 3296.385144][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3296.385146][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3296.385148][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3296.385151][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3296.385153][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3296.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3296.385157][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3296.385160][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3296.385163][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3296.385164][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3296.385167][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3296.385169][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3296.385171][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3296.385173][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3296.385175][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3296.385177][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3296.385180][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3296.385182][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3296.385184][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3296.385186][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3296.385188][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3296.385191][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3296.385193][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3296.385195][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3296.385197][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3296.385199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3296.385200][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3296.385202][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3296.385204][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3296.385205][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3296.385207][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3296.385209][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3296.385210][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3296.385212][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3296.385214][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3296.385216][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3296.385217][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3296.385219][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3296.385221][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3296.385222][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3296.385225][    C3]  vfs_write (fs/read_write.c:686)
[ 3296.385227][    C3]  ksys_write (fs/read_write.c:739)
[ 3296.385229][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3296.385230][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3296.385232][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3296.385235][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3296.385237][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3296.385240][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3296.385241][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3296.385242][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3296.385243][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3296.385244][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3296.385245][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3296.385245][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3310.804073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3310.804372][    C3] rcu: 3-....: (2365225 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=734920
| [ 3310.804596][    C3] rcu: (t=2366112 jiffies g=527745 q=50383 ncpus=4)
| [ 3310.804731][    C3] Tainted: [L]=SOFTLOCKUP
[ 3310.804732][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3310.804733][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3310.804736][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3310.804737][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3310.804739][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3310.804740][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3310.804741][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3310.804742][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3310.804743][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3310.804745][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3310.804748][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3310.804749][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3310.804750][    C3] PKRU: 55555554
[ 3310.804750][    C3] Call Trace:
[ 3310.804751][    C3]  <TASK>
[ 3310.804752][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3310.804755][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3310.804757][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3310.804759][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3310.804761][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3310.804763][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3310.804766][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3310.804768][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3310.804771][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3310.804772][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3310.804775][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3310.804777][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3310.804779][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3310.804781][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3310.804783][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3310.804785][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3310.804788][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3310.804790][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3310.804792][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3310.804794][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3310.804795][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3310.804798][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3310.804800][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3310.804802][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3310.804804][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3310.804805][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3310.804807][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3310.804809][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3310.804810][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3310.804812][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3310.804814][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3310.804816][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3310.804817][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3310.804819][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3310.804820][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3310.804822][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3310.804824][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3310.804826][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3310.804827][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3310.804829][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3310.804831][    C3]  vfs_write (fs/read_write.c:686)
[ 3310.804833][    C3]  ksys_write (fs/read_write.c:739)
[ 3310.804835][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3310.804837][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3310.804839][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3310.804841][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3310.804843][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3310.804844][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3310.804845][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3310.804847][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3310.804848][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3310.804848][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3310.804849][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3310.804850][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3336.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3336.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3336.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3336.385133][    C3] Tainted: [L]=SOFTLOCKUP
[ 3336.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3336.385136][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 3336.385142][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 3336.385144][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 3336.385146][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 3336.385148][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3336.385149][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3336.385150][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3336.385151][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3336.385154][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3336.385157][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3336.385159][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3336.385160][    C3] PKRU: 55555554
[ 3336.385161][    C3] Call Trace:
[ 3336.385164][    C3]  <TASK>
[ 3336.385168][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 3336.385172][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3336.385176][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3336.385179][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3336.385183][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3336.385186][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3336.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3336.385191][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3336.385194][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3336.385197][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3336.385199][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3336.385201][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3336.385204][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3336.385206][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3336.385208][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3336.385210][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3336.385213][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3336.385217][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3336.385219][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3336.385221][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3336.385223][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3336.385225][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3336.385229][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3336.385232][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3336.385234][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3336.385237][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3336.385240][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3336.385241][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3336.385243][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3336.385247][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3336.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3336.385251][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3336.385252][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3336.385254][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3336.385257][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3336.385258][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3336.385260][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3336.385262][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3336.385264][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3336.385265][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3336.385267][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3336.385269][    C3]  vfs_write (fs/read_write.c:686)
[ 3336.385271][    C3]  ksys_write (fs/read_write.c:739)
[ 3336.385273][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3336.385275][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3336.385278][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3336.385281][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3336.385285][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3336.385289][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3336.385290][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3336.385292][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3336.385293][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3336.385294][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3336.385295][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3336.385296][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3364.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3364.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3364.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3364.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 3364.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3364.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3364.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3364.385138][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3364.385140][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3364.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3364.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3364.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3364.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3364.385147][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3364.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3364.385152][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3364.385153][    C3] PKRU: 55555554
[ 3364.385154][    C3] Call Trace:
[ 3364.385158][    C3]  <TASK>
[ 3364.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3364.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3364.385169][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3364.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3364.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3364.385178][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3364.385181][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3364.385184][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3364.385187][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3364.385188][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3364.385191][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3364.385193][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3364.385196][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3364.385197][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3364.385200][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3364.385202][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3364.385206][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3364.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3364.385210][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3364.385212][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3364.385214][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3364.385217][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3364.385221][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3364.385222][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3364.385226][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3364.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3364.385230][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3364.385233][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3364.385236][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3364.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3364.385239][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3364.385241][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3364.385243][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3364.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3364.385247][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3364.385250][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3364.385251][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3364.385253][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3364.385254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3364.385256][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3364.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 3364.385261][    C3]  ksys_write (fs/read_write.c:739)
[ 3364.385263][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3364.385264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3364.385267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3364.385270][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3364.385274][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3364.385278][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3364.385279][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3364.385281][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3364.385282][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3364.385283][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3364.385284][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3364.385284][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3368.260506][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3368.260755][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3368.260938][    C3] NMI backtrace for cpu 3
| [ 3368.260945][    C3] Tainted: [L]=SOFTLOCKUP
[ 3368.260946][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3368.260947][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:201)
[ 3368.260952][    C3] Code: 48 39 c1 74 20 80 38 00 74 f2 b9 01 00 00 00 48 85 c0 74 2e 48 39 c3 75 19 45 89 f2 41 83 e2 07 44 3a 13 7d 0d b9 01 00 00 00 <5b> 41 5e 89 c8 41 5f c3 4c 89 c1 0f b6 d2 e8 df e9 ff ff 83 f0 01
All code
========
   0:	48 39 c1             	cmp    %rax,%rcx
   3:	74 20                	je     0x25
   5:	80 38 00             	cmpb   $0x0,(%rax)
   8:	74 f2                	je     0xfffffffffffffffc
   a:	b9 01 00 00 00       	mov    $0x1,%ecx
   f:	48 85 c0             	test   %rax,%rax
  12:	74 2e                	je     0x42
  14:	48 39 c3             	cmp    %rax,%rbx
  17:	75 19                	jne    0x32
  19:	45 89 f2             	mov    %r14d,%r10d
  1c:	41 83 e2 07          	and    $0x7,%r10d
  20:	44 3a 13             	cmp    (%rbx),%r10b
  23:	7d 0d                	jge    0x32
  25:	b9 01 00 00 00       	mov    $0x1,%ecx
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	41 5e                	pop    %r14
  2d:	89 c8                	mov    %ecx,%eax
  2f:	41 5f                	pop    %r15
  31:	c3                   	ret
  32:	4c 89 c1             	mov    %r8,%rcx
  35:	0f b6 d2             	movzbl %dl,%edx
  38:	e8 df e9 ff ff       	call   0xffffffffffffea1c
  3d:	83 f0 01             	xor    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	41 5e                	pop    %r14
   3:	89 c8                	mov    %ecx,%eax
   5:	41 5f                	pop    %r15
   7:	c3                   	ret
   8:	4c 89 c1             	mov    %r8,%rcx
   b:	0f b6 d2             	movzbl %dl,%edx
   e:	e8 df e9 ff ff       	call   0xffffffffffffe9f2
  13:	83 f0 01             	xor    $0x1,%eax
[ 3368.260953][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000246
[ 3368.260955][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: 0000000000000001
[ 3368.260956][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3368.260957][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3368.260957][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3368.260958][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 3368.260960][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3368.260962][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3368.260963][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3368.260964][    C3] PKRU: 55555554
[ 3368.260965][    C3] Call Trace:
[ 3368.260966][    C3]  <TASK>
[ 3368.260968][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 3368.260970][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3368.260972][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3368.260974][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3368.260977][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3368.260979][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3368.260981][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3368.260983][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3368.260985][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3368.260988][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3368.260989][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3368.260992][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3368.260994][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3368.260997][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3368.260998][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3368.261000][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3368.261002][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3368.261005][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3368.261007][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3368.261009][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3368.261011][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3368.261012][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3368.261015][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3368.261017][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3368.261019][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3368.261021][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3368.261022][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3368.261024][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3368.261026][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3368.261027][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3368.261029][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3368.261031][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3368.261033][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3368.261034][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3368.261036][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3368.261037][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3368.261039][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3368.261041][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3368.261043][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3368.261044][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3368.261046][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3368.261048][    C3]  vfs_write (fs/read_write.c:686)
[ 3368.261050][    C3]  ksys_write (fs/read_write.c:739)
[ 3368.261052][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3368.261053][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3368.261056][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3368.261058][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3368.261060][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3368.261061][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3368.261062][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3368.261063][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3368.261064][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3368.261065][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3368.261066][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3368.261066][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3388.808074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3388.808305][    C3] rcu: 3-....: (2443198 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=767390
| [ 3388.808591][    C3] rcu: (t=2444116 jiffies g=527745 q=51886 ncpus=4)
| [ 3388.808730][    C3] Tainted: [L]=SOFTLOCKUP
[ 3388.808730][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3388.808732][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3388.808735][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3388.808737][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3388.808740][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3388.808741][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3388.808742][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3388.808743][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3388.808744][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3388.808746][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3388.808749][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3388.808750][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3388.808751][    C3] PKRU: 55555554
[ 3388.808752][    C3] Call Trace:
[ 3388.808752][    C3]  <TASK>
[ 3388.808753][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3388.808755][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3388.808758][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3388.808760][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3388.808762][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3388.808764][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3388.808766][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3388.808768][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3388.808771][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3388.808773][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3388.808775][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3388.808778][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3388.808780][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3388.808782][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3388.808784][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3388.808785][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3388.808788][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3388.808790][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3388.808792][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3388.808794][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3388.808795][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3388.808798][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3388.808800][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3388.808802][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3388.808804][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3388.808806][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3388.808807][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3388.808809][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3388.808811][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3388.808812][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3388.808814][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3388.808816][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3388.808817][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3388.808819][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3388.808821][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3388.808823][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3388.808824][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3388.808826][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3388.808828][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3388.808829][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3388.808832][    C3]  vfs_write (fs/read_write.c:686)
[ 3388.808834][    C3]  ksys_write (fs/read_write.c:739)
[ 3388.808835][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3388.808837][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3388.808839][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3388.808842][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3388.808843][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3388.808845][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3388.808846][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3388.808847][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3388.808848][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3388.808849][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3388.808849][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3388.808850][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3416.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3416.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3416.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3416.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 3416.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3416.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3416.385113][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3416.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3416.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3416.385117][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3416.385118][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3416.385119][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3416.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3416.385122][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3416.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3416.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3416.385127][    C3] PKRU: 55555554
[ 3416.385128][    C3] Call Trace:
[ 3416.385131][    C3]  <TASK>
[ 3416.385133][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3416.385136][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3416.385138][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3416.385141][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3416.385144][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3416.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3416.385148][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3416.385150][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3416.385153][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3416.385155][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3416.385157][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3416.385160][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3416.385162][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3416.385164][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3416.385166][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3416.385168][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3416.385171][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3416.385173][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3416.385175][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3416.385177][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3416.385179][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3416.385182][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3416.385184][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3416.385186][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3416.385188][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3416.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3416.385191][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3416.385193][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3416.385194][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3416.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3416.385198][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3416.385200][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3416.385202][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3416.385203][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3416.385205][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3416.385207][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3416.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3416.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3416.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3416.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3416.385216][    C3]  vfs_write (fs/read_write.c:686)
[ 3416.385218][    C3]  ksys_write (fs/read_write.c:739)
[ 3416.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3416.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3416.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3416.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3416.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3416.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3416.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3416.385235][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3416.385236][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3416.385237][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3416.385238][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3416.385238][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3444.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3444.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3444.385097][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3444.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 3444.385104][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3444.385106][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3444.385108][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3444.385110][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3444.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3444.385112][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3444.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3444.385114][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3444.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3444.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3444.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3444.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3444.385122][    C3] PKRU: 55555554
[ 3444.385123][    C3] Call Trace:
[ 3444.385126][    C3]  <TASK>
[ 3444.385128][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3444.385130][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3444.385132][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3444.385135][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3444.385137][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3444.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3444.385141][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3444.385143][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3444.385146][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3444.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3444.385150][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3444.385153][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3444.385155][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3444.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3444.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3444.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3444.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3444.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3444.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3444.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3444.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3444.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3444.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3444.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3444.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3444.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3444.385183][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3444.385185][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3444.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3444.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3444.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3444.385193][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3444.385194][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3444.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3444.385198][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3444.385200][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3444.385202][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3444.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3444.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3444.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3444.385209][    C3]  vfs_write (fs/read_write.c:686)
[ 3444.385211][    C3]  ksys_write (fs/read_write.c:739)
[ 3444.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3444.385215][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3444.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3444.385219][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3444.385222][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3444.385224][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3444.385225][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3444.385226][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3444.385227][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3444.385228][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3444.385229][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3444.385230][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3466.564515][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3466.564692][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3466.564864][    C3] NMI backtrace for cpu 3
| [ 3466.564873][    C3] Tainted: [L]=SOFTLOCKUP
[ 3466.564873][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3466.564875][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3466.564878][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3466.564880][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3466.564882][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3466.564883][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3466.564883][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3466.564884][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3466.564885][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3466.564887][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3466.564890][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3466.564891][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3466.564892][    C3] PKRU: 55555554
[ 3466.564893][    C3] Call Trace:
[ 3466.564895][    C3]  <TASK>
[ 3466.564898][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3466.564900][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3466.564902][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3466.564904][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3466.564906][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3466.564908][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3466.564911][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3466.564913][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3466.564916][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3466.564918][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3466.564920][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3466.564922][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3466.564924][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3466.564926][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3466.564928][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3466.564930][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3466.564933][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3466.564934][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3466.564936][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3466.564938][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3466.564940][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3466.564943][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3466.564945][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3466.564947][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3466.564949][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3466.564950][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3466.564952][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3466.564954][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3466.564956][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3466.564957][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3466.564959][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3466.564961][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3466.564962][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3466.564964][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3466.564966][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3466.564967][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3466.564969][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3466.564971][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3466.564972][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3466.564974][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3466.564976][    C3]  vfs_write (fs/read_write.c:686)
[ 3466.564978][    C3]  ksys_write (fs/read_write.c:739)
[ 3466.564980][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3466.564982][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3466.564984][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3466.564987][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3466.564989][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3466.564991][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3466.564992][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3466.564993][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3466.564994][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3466.564995][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3466.564995][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3466.564996][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3466.812072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3466.812243][    C3] rcu: 3-....: (2521171 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=797220
| [ 3466.812465][    C3] rcu: (t=2522120 jiffies g=527745 q=53386 ncpus=4)
| [ 3466.812647][    C3] Tainted: [L]=SOFTLOCKUP
[ 3466.812648][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3466.812649][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3466.812651][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3466.812652][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3466.812653][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3466.812654][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3466.812655][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3466.812655][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3466.812656][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3466.812658][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3466.812660][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3466.812661][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3466.812662][    C3] PKRU: 55555554
[ 3466.812662][    C3] Call Trace:
[ 3466.812663][    C3]  <TASK>
[ 3466.812663][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3466.812665][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3466.812668][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3466.812670][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3466.812672][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3466.812674][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3466.812677][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3466.812679][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3466.812681][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3466.812683][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3466.812685][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3466.812688][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3466.812690][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3466.812691][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3466.812693][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3466.812695][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3466.812698][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3466.812700][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3466.812702][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3466.812704][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3466.812705][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3466.812710][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3466.812712][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3466.812714][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3466.812716][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3466.812717][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3466.812718][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3466.812720][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3466.812722][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3466.812723][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3466.812725][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3466.812727][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3466.812728][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3466.812730][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3466.812732][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3466.812733][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3466.812735][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3466.812737][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3466.812738][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3466.812740][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3466.812742][    C3]  vfs_write (fs/read_write.c:686)
[ 3466.812744][    C3]  ksys_write (fs/read_write.c:739)
[ 3466.812746][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3466.812747][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3466.812750][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3466.812752][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3466.812753][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3466.812755][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3466.812756][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3466.812757][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3466.812758][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3466.812758][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3466.812759][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3466.812760][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3492.385104][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3492.385106][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3492.385108][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3492.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 3492.385115][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3492.385117][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3492.385120][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3492.385121][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3492.385123][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3492.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3492.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3492.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3492.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3492.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3492.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3492.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3492.385133][    C3] PKRU: 55555554
[ 3492.385134][    C3] Call Trace:
[ 3492.385137][    C3]  <TASK>
[ 3492.385140][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3492.385142][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3492.385145][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3492.385147][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3492.385150][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3492.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3492.385154][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3492.385157][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3492.385160][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3492.385161][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3492.385164][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3492.385166][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3492.385169][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3492.385170][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3492.385173][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3492.385175][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3492.385177][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3492.385179][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3492.385181][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3492.385183][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3492.385185][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3492.385188][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3492.385191][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3492.385192][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3492.385194][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3492.385196][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3492.385197][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3492.385199][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3492.385201][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3492.385202][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3492.385205][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3492.385207][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3492.385208][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3492.385210][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3492.385211][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3492.385214][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3492.385215][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3492.385217][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3492.385218][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3492.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3492.385222][    C3]  vfs_write (fs/read_write.c:686)
[ 3492.385224][    C3]  ksys_write (fs/read_write.c:739)
[ 3492.385226][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3492.385228][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3492.385230][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3492.385233][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3492.385235][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3492.385237][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3492.385238][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3492.385240][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3492.385241][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3492.385241][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3492.385242][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3492.385243][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3520.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3520.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3520.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3520.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 3520.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3520.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3520.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3520.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3520.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3520.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3520.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3520.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3520.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3520.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3520.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3520.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3520.385155][    C3] PKRU: 55555554
[ 3520.385156][    C3] Call Trace:
[ 3520.385160][    C3]  <TASK>
[ 3520.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3520.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3520.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3520.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3520.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3520.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3520.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3520.385190][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3520.385193][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3520.385195][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3520.385197][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3520.385200][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3520.385202][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3520.385204][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3520.385206][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3520.385208][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3520.385213][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3520.385215][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3520.385217][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3520.385219][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3520.385221][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3520.385224][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3520.385227][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3520.385229][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3520.385233][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3520.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3520.385237][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3520.385239][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3520.385242][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3520.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3520.385246][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3520.385247][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3520.385250][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3520.385252][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3520.385253][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3520.385256][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3520.385257][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3520.385259][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3520.385261][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3520.385262][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3520.385265][    C3]  vfs_write (fs/read_write.c:686)
[ 3520.385267][    C3]  ksys_write (fs/read_write.c:739)
[ 3520.385269][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3520.385271][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3520.385273][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3520.385277][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3520.385280][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3520.385285][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3520.385286][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3520.385288][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3520.385289][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3520.385290][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3520.385290][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3520.385291][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3544.816074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3544.816339][    C3] rcu: 3-....: (2599150 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=827635
| [ 3544.816577][    C3] rcu: (t=2600124 jiffies g=527745 q=54523 ncpus=4)
| [ 3544.816776][    C3] Tainted: [L]=SOFTLOCKUP
[ 3544.816777][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3544.816779][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3544.816788][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3544.816790][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3544.816793][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3544.816795][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3544.816796][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3544.816797][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3544.816798][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3544.816801][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3544.816804][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3544.816805][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3544.816806][    C3] PKRU: 55555554
[ 3544.816807][    C3] Call Trace:
[ 3544.816808][    C3]  <TASK>
[ 3544.816809][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3544.816814][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3544.816817][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3544.816820][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3544.816824][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3544.816826][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3544.816830][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3544.816832][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3544.816835][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3544.816837][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3544.816839][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3544.816842][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3544.816844][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3544.816846][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3544.816848][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3544.816850][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3544.816854][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3544.816856][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3544.816858][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3544.816860][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3544.816862][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3544.816865][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3544.816868][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3544.816870][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3544.816873][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3544.816876][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3544.816877][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3544.816879][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3544.816882][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3544.816883][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3544.816886][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3544.816887][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3544.816890][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3544.816891][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3544.816893][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3544.816895][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3544.816896][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3544.816898][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3544.816899][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3544.816901][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3544.816903][    C3]  vfs_write (fs/read_write.c:686)
[ 3544.816905][    C3]  ksys_write (fs/read_write.c:739)
[ 3544.816907][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3544.816909][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3544.816911][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3544.816915][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3544.816917][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3544.816920][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3544.816921][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3544.816923][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3544.816924][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3544.816925][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3544.816926][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3544.816927][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3564.868551][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3564.868741][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3564.868907][    C3] NMI backtrace for cpu 3
| [ 3564.868926][    C3] Tainted: [L]=SOFTLOCKUP
[ 3564.868927][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3564.868929][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3564.868938][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3564.868941][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3564.868944][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3564.868946][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3564.868947][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3564.868948][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3564.868949][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3564.868951][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3564.868955][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3564.868956][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3564.868957][    C3] PKRU: 55555554
[ 3564.868957][    C3] Call Trace:
[ 3564.868961][    C3]  <TASK>
[ 3564.868965][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3564.868970][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3564.868972][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3564.868976][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3564.868980][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3564.868982][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3564.868986][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3564.868988][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3564.868992][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3564.868993][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3564.868996][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3564.868999][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3564.869001][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3564.869003][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3564.869005][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3564.869008][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3564.869012][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3564.869014][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3564.869016][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3564.869018][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3564.869021][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3564.869024][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3564.869028][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3564.869029][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3564.869033][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3564.869036][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3564.869038][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3564.869040][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3564.869043][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3564.869044][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3564.869047][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3564.869048][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3564.869050][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3564.869053][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3564.869054][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3564.869057][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3564.869058][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3564.869060][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3564.869062][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3564.869063][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3564.869066][    C3]  vfs_write (fs/read_write.c:686)
[ 3564.869071][    C3]  ksys_write (fs/read_write.c:739)
[ 3564.869073][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3564.869076][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3564.869078][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3564.869082][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3564.869085][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3564.869089][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3564.869090][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3564.869092][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3564.869093][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3564.869094][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3564.869095][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3564.869096][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3592.385118][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3592.385120][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3592.385124][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3592.385133][    C3] Tainted: [L]=SOFTLOCKUP
[ 3592.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3592.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3592.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3592.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3592.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3592.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3592.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3592.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3592.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3592.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3592.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3592.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3592.385157][    C3] PKRU: 55555554
[ 3592.385158][    C3] Call Trace:
[ 3592.385161][    C3]  <TASK>
[ 3592.385165][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3592.385170][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3592.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3592.385176][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3592.385180][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3592.385182][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3592.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3592.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3592.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3592.385192][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3592.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3592.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3592.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3592.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3592.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3592.385206][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3592.385210][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3592.385212][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3592.385214][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3592.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3592.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3592.385222][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3592.385225][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3592.385227][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3592.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3592.385233][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3592.385235][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3592.385237][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3592.385240][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3592.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3592.385244][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3592.385246][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3592.385248][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3592.385250][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3592.385251][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3592.385254][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3592.385256][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3592.385258][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3592.385259][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3592.385261][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3592.385263][    C3]  vfs_write (fs/read_write.c:686)
[ 3592.385265][    C3]  ksys_write (fs/read_write.c:739)
[ 3592.385268][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3592.385270][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3592.385272][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3592.385276][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3592.385279][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3592.385284][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3592.385285][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3592.385287][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3592.385288][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3592.385288][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3592.385289][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3592.385290][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3620.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3620.385104][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3620.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3620.385114][    C3] Tainted: [L]=SOFTLOCKUP
[ 3620.385114][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3620.385120][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3620.385122][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3620.385124][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3620.385126][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3620.385127][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3620.385128][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3620.385129][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3620.385129][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3620.385132][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3620.385136][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3620.385137][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3620.385138][    C3] PKRU: 55555554
[ 3620.385139][    C3] Call Trace:
[ 3620.385142][    C3]  <TASK>
[ 3620.385146][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3620.385149][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3620.385152][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3620.385154][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3620.385157][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3620.385159][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3620.385161][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3620.385164][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3620.385167][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3620.385168][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3620.385171][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3620.385173][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3620.385175][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3620.385177][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3620.385179][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3620.385181][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3620.385184][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3620.385186][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3620.385188][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3620.385190][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3620.385192][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3620.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3620.385198][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3620.385200][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3620.385202][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3620.385204][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3620.385205][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3620.385207][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3620.385209][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3620.385210][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3620.385213][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3620.385214][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3620.385216][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3620.385218][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3620.385219][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3620.385221][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3620.385223][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3620.385225][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3620.385226][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3620.385228][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3620.385231][    C3]  vfs_write (fs/read_write.c:686)
[ 3620.385233][    C3]  ksys_write (fs/read_write.c:739)
[ 3620.385235][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3620.385237][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3620.385239][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3620.385241][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3620.385244][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3620.385248][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3620.385249][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3620.385251][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3620.385252][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3620.385253][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3620.385253][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3620.385254][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3622.819072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3622.819256][    C3] rcu: 3-....: (2677121 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=857867
| [ 3622.819532][    C3] rcu: (t=2678127 jiffies g=527745 q=57840 ncpus=4)
| [ 3622.819671][    C3] Tainted: [L]=SOFTLOCKUP
[ 3622.819671][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3622.819672][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3622.819675][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3622.819676][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3622.819678][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3622.819679][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3622.819679][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3622.819680][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3622.819681][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3622.819683][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3622.819685][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3622.819686][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3622.819687][    C3] PKRU: 55555554
[ 3622.819688][    C3] Call Trace:
[ 3622.819688][    C3]  <TASK>
[ 3622.819689][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3622.819691][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3622.819693][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3622.819696][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3622.819698][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3622.819700][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3622.819702][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3622.819704][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3622.819707][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3622.819708][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3622.819711][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3622.819713][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3622.819716][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3622.819717][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3622.819719][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3622.819721][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3622.819724][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3622.819726][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3622.819728][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3622.819730][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3622.819732][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3622.819735][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3622.819737][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3622.819739][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3622.819741][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3622.819742][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3622.819743][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3622.819745][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3622.819747][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3622.819748][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3622.819750][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3622.819752][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3622.819754][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3622.819755][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3622.819757][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3622.819759][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3622.819760][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3622.819762][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3622.819764][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3622.819765][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3622.819768][    C3]  vfs_write (fs/read_write.c:686)
[ 3622.819770][    C3]  ksys_write (fs/read_write.c:739)
[ 3622.819771][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3622.819773][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3622.819775][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3622.819778][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3622.819779][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3622.819780][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3622.819781][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3622.819783][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3622.819784][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3622.819784][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3622.819785][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3622.819786][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3648.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3648.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3648.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3648.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 3648.385105][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3648.385106][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3648.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3648.385110][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3648.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3648.385112][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3648.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3648.385114][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3648.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3648.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3648.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3648.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3648.385122][    C3] PKRU: 55555554
[ 3648.385123][    C3] Call Trace:
[ 3648.385125][    C3]  <TASK>
[ 3648.385127][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3648.385129][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3648.385131][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3648.385134][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3648.385136][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3648.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3648.385140][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3648.385142][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3648.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3648.385147][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3648.385149][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3648.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3648.385154][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3648.385156][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3648.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3648.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3648.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3648.385164][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3648.385166][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3648.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3648.385169][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3648.385172][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3648.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3648.385176][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3648.385178][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3648.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3648.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3648.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3648.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3648.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3648.385188][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3648.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3648.385191][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3648.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3648.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3648.385196][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3648.385198][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3648.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3648.385201][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3648.385203][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3648.385205][    C3]  vfs_write (fs/read_write.c:686)
[ 3648.385207][    C3]  ksys_write (fs/read_write.c:739)
[ 3648.385209][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3648.385211][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3648.385213][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3648.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3648.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3648.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3648.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3648.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3648.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3648.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3648.385225][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3648.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3663.172502][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3663.172702][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3663.172865][    C3] NMI backtrace for cpu 3
| [ 3663.172872][    C3] Tainted: [L]=SOFTLOCKUP
[ 3663.172873][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3663.172875][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3663.172878][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3663.172879][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3663.172881][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3663.172882][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3663.172883][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3663.172884][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3663.172885][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3663.172888][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3663.172890][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3663.172891][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3663.172892][    C3] PKRU: 55555554
[ 3663.172893][    C3] Call Trace:
[ 3663.172895][    C3]  <TASK>
[ 3663.172898][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3663.172901][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3663.172903][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3663.172905][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3663.172907][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3663.172909][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3663.172911][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3663.172914][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3663.172917][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3663.172919][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3663.172921][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3663.172924][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3663.172926][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3663.172927][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3663.172929][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3663.172931][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3663.172934][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3663.172936][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3663.172938][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3663.172940][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3663.172941][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3663.172944][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3663.172947][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3663.172948][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3663.172950][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3663.172952][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3663.172953][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3663.172955][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3663.172957][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3663.172958][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3663.172961][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3663.172962][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3663.172964][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3663.172965][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3663.172967][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3663.172968][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3663.172970][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3663.172972][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3663.172973][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3663.172975][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3663.172977][    C3]  vfs_write (fs/read_write.c:686)
[ 3663.172979][    C3]  ksys_write (fs/read_write.c:739)
[ 3663.172981][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3663.172982][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3663.172985][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3663.172987][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3663.172989][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3663.172991][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3663.172993][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3663.172994][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3663.172995][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3663.172996][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3663.172996][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3663.172997][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3688.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3688.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3688.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3688.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 3688.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3688.385111][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:182 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[ 3688.385115][    C3] Code: 00 00 00 f3 0f 1e fa 48 89 f2 be f8 00 00 00 e9 5f 91 ab 01 0f 1f 40 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 48 85 f6 <0f> 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	48 89 f2             	mov    %rsi,%rdx
   a:	be f8 00 00 00       	mov    $0xf8,%esi
   f:	e9 5f 91 ab 01       	jmp    0x1ab9173
  14:	0f 1f 40 00          	nopl   0x0(%rax)
  18:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  1f:	00 00 00 00 
  23:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  27:	48 85 f6             	test   %rsi,%rsi
  2a:*	0f 84 9a 01 00 00    	je     0x1ca		<-- trapping instruction
  30:	48 89 f8             	mov    %rdi,%rax
  33:	41 57                	push   %r15
  35:	49 89 c8             	mov    %rcx,%r8
  38:	48 01 f0             	add    %rsi,%rax
  3b:	41 56                	push   %r14
  3d:	53                   	push   %rbx
  3e:	0f                   	.byte 0xf
  3f:	82                   	.byte 0x82

Code starting with the faulting instruction
===========================================
   0:	0f 84 9a 01 00 00    	je     0x1a0
   6:	48 89 f8             	mov    %rdi,%rax
   9:	41 57                	push   %r15
   b:	49 89 c8             	mov    %rcx,%r8
   e:	48 01 f0             	add    %rsi,%rax
  11:	41 56                	push   %r14
  13:	53                   	push   %rbx
  14:	0f                   	.byte 0xf
  15:	82                   	.byte 0x82
[ 3688.385117][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[ 3688.385118][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 3688.385119][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3688.385120][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3688.385121][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3688.385122][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3688.385124][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3688.385128][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3688.385128][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3688.385129][    C3] PKRU: 55555554
[ 3688.385130][    C3] Call Trace:
[ 3688.385132][    C3]  <TASK>
[ 3688.385133][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 3688.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3688.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3688.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3688.385144][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3688.385146][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3688.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3688.385150][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3688.385153][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3688.385156][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3688.385157][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3688.385160][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3688.385162][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3688.385164][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3688.385166][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3688.385168][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3688.385170][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3688.385173][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3688.385175][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3688.385177][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3688.385179][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3688.385180][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3688.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3688.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3688.385188][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3688.385190][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3688.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3688.385192][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3688.385194][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3688.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3688.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3688.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3688.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3688.385203][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3688.385205][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3688.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3688.385208][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3688.385210][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3688.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3688.385213][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3688.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3688.385217][    C3]  vfs_write (fs/read_write.c:686)
[ 3688.385219][    C3]  ksys_write (fs/read_write.c:739)
[ 3688.385221][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3688.385223][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3688.385225][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3688.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3688.385230][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3688.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3688.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3688.385235][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3688.385236][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3688.385236][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3688.385237][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3688.385238][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3700.823071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3700.823292][    C3] rcu: 3-....: (2755092 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=888087
| [ 3700.823573][    C3] rcu: (t=2756131 jiffies g=527745 q=59340 ncpus=4)
| [ 3700.823723][    C3] Tainted: [L]=SOFTLOCKUP
[ 3700.823723][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3700.823725][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3700.823727][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3700.823729][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3700.823731][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3700.823732][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3700.823732][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3700.823733][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3700.823734][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3700.823736][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3700.823739][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3700.823740][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3700.823740][    C3] PKRU: 55555554
[ 3700.823741][    C3] Call Trace:
[ 3700.823742][    C3]  <TASK>
[ 3700.823743][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3700.823745][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3700.823748][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3700.823750][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3700.823752][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3700.823754][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3700.823756][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3700.823758][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3700.823761][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3700.823763][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3700.823765][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3700.823767][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3700.823769][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3700.823771][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3700.823773][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3700.823775][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3700.823778][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3700.823779][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3700.823781][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3700.823783][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3700.823785][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3700.823788][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3700.823790][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3700.823792][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3700.823794][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3700.823795][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3700.823796][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3700.823798][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3700.823800][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3700.823801][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3700.823803][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3700.823805][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3700.823807][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3700.823808][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3700.823810][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3700.823811][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3700.823813][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3700.823815][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3700.823816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3700.823818][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3700.823820][    C3]  vfs_write (fs/read_write.c:686)
[ 3700.823822][    C3]  ksys_write (fs/read_write.c:739)
[ 3700.823824][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3700.823826][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3700.823828][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3700.823830][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3700.823831][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3700.823833][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3700.823834][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3700.823835][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3700.823836][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3700.823837][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3700.823838][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3700.823838][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3728.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3728.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3728.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3728.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 3728.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3728.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3728.385113][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3728.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3728.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3728.385117][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3728.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3728.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3728.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3728.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3728.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3728.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3728.385127][    C3] PKRU: 55555554
[ 3728.385127][    C3] Call Trace:
[ 3728.385130][    C3]  <TASK>
[ 3728.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3728.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3728.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3728.385139][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3728.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3728.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3728.385145][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3728.385148][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3728.385151][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3728.385152][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3728.385155][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3728.385157][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3728.385160][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3728.385161][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3728.385163][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3728.385165][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3728.385168][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3728.385170][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3728.385172][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3728.385174][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3728.385175][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3728.385178][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3728.385181][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3728.385182][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3728.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3728.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3728.385187][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3728.385189][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3728.385191][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3728.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3728.385194][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3728.385196][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3728.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3728.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3728.385201][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3728.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3728.385204][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3728.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3728.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3728.385209][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3728.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 3728.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 3728.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3728.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3728.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3728.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3728.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3728.385226][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3728.385227][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3728.385228][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3728.385229][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3728.385230][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3728.385231][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3728.385232][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3756.385142][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3756.385146][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3756.385151][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3756.385167][    C3] Tainted: [L]=SOFTLOCKUP
[ 3756.385170][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3756.385174][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3756.385180][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3756.385183][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3756.385187][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3756.385190][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3756.385193][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3756.385195][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3756.385197][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3756.385202][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3756.385208][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3756.385211][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3756.385214][    C3] PKRU: 55555554
[ 3756.385216][    C3] Call Trace:
[ 3756.385222][    C3]  <TASK>
[ 3756.385229][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3756.385237][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3756.385242][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3756.385249][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3756.385256][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3756.385259][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3756.385264][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3756.385270][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3756.385276][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3756.385280][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3756.385284][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3756.385289][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3756.385294][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3756.385297][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3756.385302][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3756.385305][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3756.385313][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3756.385316][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3756.385320][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3756.385324][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3756.385327][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3756.385332][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3756.385337][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3756.385340][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3756.385346][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3756.385359][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3756.385362][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3756.385366][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3756.385370][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3756.385372][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3756.385377][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3756.385379][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3756.385383][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3756.385386][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3756.385389][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3756.385393][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3756.385396][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3756.385399][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3756.385401][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3756.385404][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3756.385408][    C3]  vfs_write (fs/read_write.c:686)
[ 3756.385412][    C3]  ksys_write (fs/read_write.c:739)
[ 3756.385415][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3756.385418][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3756.385422][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3756.385427][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3756.385432][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3756.385437][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3756.385439][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3756.385442][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3756.385444][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3756.385445][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3756.385447][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3756.385448][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3761.476848][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3761.477808][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3761.478278][    C3] NMI backtrace for cpu 3
| [ 3761.478306][    C3] Tainted: [L]=SOFTLOCKUP
[ 3761.478307][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3761.478311][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3761.478325][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3761.478328][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3761.478333][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3761.478336][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3761.478338][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3761.478341][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3761.478342][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3761.478347][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3761.478353][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3761.478355][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3761.478358][    C3] PKRU: 55555554
[ 3761.478360][    C3] Call Trace:
[ 3761.478365][    C3]  <TASK>
[ 3761.478371][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3761.478379][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3761.478384][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3761.478391][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3761.478405][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3761.478408][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3761.478415][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3761.478420][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3761.478426][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3761.478429][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3761.478434][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3761.478439][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3761.478444][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3761.478447][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3761.478451][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3761.478455][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3761.478463][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3761.478467][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3761.478471][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3761.478476][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3761.478480][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3761.478486][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3761.478492][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3761.478495][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3761.478501][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3761.478506][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3761.478509][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3761.478513][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3761.478518][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3761.478521][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3761.478526][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3761.478530][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3761.478534][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3761.478538][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3761.478541][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3761.478545][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3761.478549][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3761.478553][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3761.478556][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3761.478559][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3761.478564][    C3]  vfs_write (fs/read_write.c:686)
[ 3761.478568][    C3]  ksys_write (fs/read_write.c:739)
[ 3761.478572][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3761.478576][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3761.478580][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3761.478586][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3761.478592][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3761.478600][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3761.478603][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3761.478607][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3761.478609][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3761.478611][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3761.478613][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3761.478614][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3778.827075][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3778.827353][    C3] rcu: 3-....: (2833035 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=918913
| [ 3778.827649][    C3] rcu: (t=2834135 jiffies g=527745 q=60837 ncpus=4)
| [ 3778.827805][    C3] Tainted: [L]=SOFTLOCKUP
[ 3778.827806][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3778.827808][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3778.827817][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3778.827819][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3778.827822][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3778.827824][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3778.827825][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3778.827826][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3778.827827][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3778.827830][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3778.827834][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3778.827835][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3778.827836][    C3] PKRU: 55555554
[ 3778.827837][    C3] Call Trace:
[ 3778.827837][    C3]  <TASK>
[ 3778.827838][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3778.827843][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3778.827845][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3778.827849][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3778.827853][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3778.827854][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3778.827858][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3778.827860][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3778.827863][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3778.827864][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3778.827867][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3778.827869][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3778.827871][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3778.827873][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3778.827875][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3778.827877][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3778.827882][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3778.827883][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3778.827886][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3778.827888][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3778.827889][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3778.827892][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3778.827896][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3778.827897][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3778.827901][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3778.827904][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3778.827905][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3778.827907][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3778.827910][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3778.827911][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3778.827914][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3778.827915][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3778.827918][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3778.827920][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3778.827921][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3778.827923][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3778.827925][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3778.827927][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3778.827928][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3778.827930][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3778.827932][    C3]  vfs_write (fs/read_write.c:686)
[ 3778.827934][    C3]  ksys_write (fs/read_write.c:739)
[ 3778.827936][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3778.827938][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3778.827940][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3778.827943][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3778.827946][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3778.827949][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3778.827950][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3778.827952][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3778.827953][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3778.827954][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3778.827954][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3778.827955][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3804.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3804.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3804.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3804.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 3804.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3804.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3804.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3804.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3804.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3804.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3804.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3804.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3804.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3804.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3804.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3804.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3804.385155][    C3] PKRU: 55555554
[ 3804.385156][    C3] Call Trace:
[ 3804.385159][    C3]  <TASK>
[ 3804.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3804.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3804.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3804.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3804.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3804.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3804.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3804.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3804.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3804.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3804.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3804.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3804.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3804.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3804.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3804.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3804.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3804.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3804.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3804.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3804.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3804.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3804.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3804.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3804.385228][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3804.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3804.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3804.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3804.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3804.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3804.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3804.385242][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3804.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3804.385246][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3804.385248][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3804.385251][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3804.385252][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3804.385254][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3804.385255][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3804.385257][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3804.385259][    C3]  vfs_write (fs/read_write.c:686)
[ 3804.385262][    C3]  ksys_write (fs/read_write.c:739)
[ 3804.385264][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3804.385265][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3804.385268][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3804.385271][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3804.385275][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3804.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3804.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3804.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3804.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3804.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3804.385285][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3804.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3832.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3832.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3832.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3832.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 3832.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3832.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3832.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3832.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3832.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3832.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3832.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3832.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3832.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3832.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3832.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3832.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3832.385154][    C3] PKRU: 55555554
[ 3832.385155][    C3] Call Trace:
[ 3832.385159][    C3]  <TASK>
[ 3832.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3832.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3832.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3832.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3832.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3832.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3832.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3832.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3832.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3832.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3832.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3832.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3832.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3832.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3832.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3832.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3832.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3832.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3832.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3832.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3832.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3832.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3832.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3832.385224][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3832.385228][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3832.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3832.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3832.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3832.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3832.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3832.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3832.385242][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3832.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3832.385247][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3832.385248][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3832.385251][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3832.385252][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3832.385254][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3832.385256][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3832.385257][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3832.385260][    C3]  vfs_write (fs/read_write.c:686)
[ 3832.385262][    C3]  ksys_write (fs/read_write.c:739)
[ 3832.385264][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3832.385266][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3832.385268][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3832.385272][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3832.385275][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3832.385279][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3832.385280][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3832.385282][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3832.385283][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3832.385284][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3832.385285][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3832.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3856.831078][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3856.831513][    C3] rcu: 3-....: (2911012 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=950386
| [ 3856.831914][    C3] rcu: (t=2912139 jiffies g=527745 q=61974 ncpus=4)
| [ 3856.832172][    C3] Tainted: [L]=SOFTLOCKUP
[ 3856.832174][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3856.832178][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3856.832193][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3856.832197][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3856.832203][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3856.832206][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3856.832208][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3856.832211][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3856.832213][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3856.832218][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3856.832225][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3856.832228][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3856.832230][    C3] PKRU: 55555554
[ 3856.832233][    C3] Call Trace:
[ 3856.832235][    C3]  <TASK>
[ 3856.832237][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3856.832245][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3856.832250][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3856.832257][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3856.832264][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3856.832268][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3856.832274][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3856.832279][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3856.832294][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3856.832298][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3856.832304][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3856.832309][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3856.832314][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3856.832318][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3856.832323][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3856.832327][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3856.832335][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3856.832339][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3856.832344][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3856.832349][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3856.832353][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3856.832359][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3856.832365][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3856.832369][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3856.832376][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3856.832381][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3856.832385][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3856.832389][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3856.832394][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3856.832398][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3856.832403][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3856.832407][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3856.832411][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3856.832416][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3856.832419][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3856.832424][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3856.832427][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3856.832432][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3856.832436][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3856.832439][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3856.832445][    C3]  vfs_write (fs/read_write.c:686)
[ 3856.832450][    C3]  ksys_write (fs/read_write.c:739)
[ 3856.832454][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3856.832458][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3856.832463][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3856.832469][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3856.832475][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3856.832482][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3856.832486][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3856.832490][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3856.832493][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3856.832495][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3856.832497][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3856.832499][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3859.780912][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3859.781246][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3859.781526][    C3] NMI backtrace for cpu 3
| [ 3859.781554][    C3] Tainted: [L]=SOFTLOCKUP
[ 3859.781557][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3859.781560][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3859.781575][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3859.781579][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3859.781585][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3859.781588][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3859.781591][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3859.781593][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3859.781596][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3859.781601][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3859.781607][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3859.781609][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3859.781612][    C3] PKRU: 55555554
[ 3859.781614][    C3] Call Trace:
[ 3859.781619][    C3]  <TASK>
[ 3859.781626][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3859.781634][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3859.781640][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3859.781647][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3859.781655][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3859.781659][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3859.781666][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3859.781671][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3859.781678][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3859.781682][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3859.781687][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3859.781693][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3859.781698][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3859.781702][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3859.781707][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3859.781712][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3859.781720][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3859.781725][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3859.781730][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3859.781735][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3859.781739][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3859.781747][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3859.781752][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3859.781756][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3859.781763][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3859.781768][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3859.781772][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3859.781777][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3859.781782][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3859.781785][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3859.781791][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3859.781795][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3859.781800][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3859.781804][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3859.781808][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3859.781813][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3859.781817][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3859.781822][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3859.781825][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3859.781829][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3859.781835][    C3]  vfs_write (fs/read_write.c:686)
[ 3859.781840][    C3]  ksys_write (fs/read_write.c:739)
[ 3859.781844][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3859.781849][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3859.781854][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3859.781860][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3859.781867][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3859.781874][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3859.781877][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3859.781882][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3859.781885][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3859.781888][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3859.781890][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3859.781892][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3884.385149][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3884.385153][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3884.385159][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3884.385175][    C3] Tainted: [L]=SOFTLOCKUP
[ 3884.385177][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3884.385181][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3884.385188][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3884.385192][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3884.385196][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3884.385200][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3884.385202][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3884.385204][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3884.385207][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3884.385213][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3884.385220][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3884.385222][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3884.385225][    C3] PKRU: 55555554
[ 3884.385227][    C3] Call Trace:
[ 3884.385234][    C3]  <TASK>
[ 3884.385240][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3884.385248][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3884.385253][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3884.385260][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3884.385267][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3884.385272][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3884.385277][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3884.385283][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3884.385290][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3884.385294][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3884.385299][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3884.385305][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3884.385310][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3884.385314][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3884.385319][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3884.385324][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3884.385332][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3884.385336][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3884.385341][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3884.385346][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3884.385351][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3884.385359][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3884.385365][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3884.385369][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3884.385376][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3884.385381][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3884.385385][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3884.385389][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3884.385395][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3884.385398][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3884.385404][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3884.385408][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3884.385413][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3884.385417][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3884.385420][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3884.385425][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3884.385429][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3884.385433][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3884.385437][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3884.385441][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3884.385446][    C3]  vfs_write (fs/read_write.c:686)
[ 3884.385452][    C3]  ksys_write (fs/read_write.c:739)
[ 3884.385456][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3884.385460][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3884.385465][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3884.385472][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3884.385479][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3884.385487][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3884.385490][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3884.385495][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3884.385498][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3884.385500][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3884.385502][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3884.385504][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3912.385119][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3912.385121][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3912.385124][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3912.385134][    C3] Tainted: [L]=SOFTLOCKUP
[ 3912.385135][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3912.385137][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 3912.385141][    C3] Code: 89 fc 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 5f 2f 52 fe 41 0f b6 45 00 41 38 c4 7c 08 84 c0 <0f> 85 30 06 00 00 8b 03 89 44 24 48 85 c0 0f 85 8d 03 00 00 48 89
All code
========
   0:	89 fc                	mov    %edi,%esp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	41 83 e4 07          	and    $0x7,%r12d
   a:	49 01 c5             	add    %rax,%r13
   d:	41 83 c4 03          	add    $0x3,%r12d
  11:	be 04 00 00 00       	mov    $0x4,%esi
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 5f 2f 52 fe       	call   0xfffffffffe522f7d
  1e:	41 0f b6 45 00       	movzbl 0x0(%r13),%eax
  23:	41 38 c4             	cmp    %al,%r12b
  26:	7c 08                	jl     0x30
  28:	84 c0                	test   %al,%al
  2a:*	0f 85 30 06 00 00    	jne    0x660		<-- trapping instruction
  30:	8b 03                	mov    (%rbx),%eax
  32:	89 44 24 48          	mov    %eax,0x48(%rsp)
  36:	85 c0                	test   %eax,%eax
  38:	0f 85 8d 03 00 00    	jne    0x3cb
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	0f 85 30 06 00 00    	jne    0x636
   6:	8b 03                	mov    (%rbx),%eax
   8:	89 44 24 48          	mov    %eax,0x48(%rsp)
   c:	85 c0                	test   %eax,%eax
   e:	0f 85 8d 03 00 00    	jne    0x3a1
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[ 3912.385143][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000246
[ 3912.385145][    C3] RAX: 0000000000000000 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3912.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3912.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3912.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3912.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3912.385152][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3912.385156][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3912.385157][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3912.385158][    C3] PKRU: 55555554
[ 3912.385159][    C3] Call Trace:
[ 3912.385163][    C3]  <TASK>
[ 3912.385166][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3912.385172][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3912.385174][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3912.385178][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3912.385182][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3912.385184][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3912.385186][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3912.385189][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3912.385192][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3912.385194][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3912.385196][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3912.385199][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3912.385201][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3912.385203][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3912.385205][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3912.385208][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3912.385212][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3912.385214][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3912.385216][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3912.385218][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3912.385221][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3912.385224][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3912.385227][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3912.385229][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3912.385233][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3912.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3912.385237][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3912.385239][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3912.385242][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3912.385244][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3912.385246][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3912.385248][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3912.385250][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3912.385252][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3912.385253][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3912.385256][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3912.385258][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3912.385260][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3912.385261][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3912.385263][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3912.385265][    C3]  vfs_write (fs/read_write.c:686)
[ 3912.385267][    C3]  ksys_write (fs/read_write.c:739)
[ 3912.385269][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3912.385271][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3912.385273][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3912.385277][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3912.385281][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3912.385284][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3912.385285][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3912.385287][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3912.385288][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3912.385289][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3912.385290][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3912.385291][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3934.835073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 3934.835308][    C3] rcu: 3-....: (2988947 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=982763
| [ 3934.835530][    C3] rcu: (t=2990143 jiffies g=527745 q=63471 ncpus=4)
| [ 3934.835727][    C3] Tainted: [L]=SOFTLOCKUP
[ 3934.835728][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3934.835730][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3934.835739][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3934.835741][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3934.835744][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3934.835746][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3934.835747][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3934.835748][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3934.835748][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3934.835751][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3934.835755][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3934.835756][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3934.835757][    C3] PKRU: 55555554
[ 3934.835757][    C3] Call Trace:
[ 3934.835758][    C3]  <TASK>
[ 3934.835759][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3934.835765][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3934.835767][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3934.835771][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3934.835774][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3934.835776][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3934.835779][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3934.835781][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3934.835784][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3934.835786][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3934.835788][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3934.835791][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3934.835793][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3934.835795][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3934.835797][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3934.835799][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3934.835803][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3934.835805][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3934.835807][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3934.835809][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3934.835811][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3934.835814][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3934.835817][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3934.835819][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3934.835822][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3934.835825][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3934.835827][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3934.835829][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3934.835831][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3934.835832][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3934.835835][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3934.835836][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3934.835839][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3934.835841][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3934.835842][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3934.835844][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3934.835846][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3934.835847][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3934.835849][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3934.835850][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3934.835853][    C3]  vfs_write (fs/read_write.c:686)
[ 3934.835855][    C3]  ksys_write (fs/read_write.c:739)
[ 3934.835856][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3934.835858][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3934.835861][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3934.835864][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3934.835866][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3934.835869][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3934.835871][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3934.835872][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3934.835873][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3934.835874][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3934.835875][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3934.835876][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3958.084667][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 3958.084859][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 3958.085040][    C3] NMI backtrace for cpu 3
| [ 3958.085055][    C3] Tainted: [L]=SOFTLOCKUP
[ 3958.085057][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3958.085059][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3958.085067][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3958.085072][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3958.085075][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3958.085077][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3958.085078][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3958.085079][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3958.085080][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3958.085082][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3958.085085][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3958.085086][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3958.085087][    C3] PKRU: 55555554
[ 3958.085088][    C3] Call Trace:
[ 3958.085091][    C3]  <TASK>
[ 3958.085093][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3958.085098][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3958.085100][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3958.085104][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3958.085108][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3958.085110][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3958.085113][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3958.085116][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3958.085119][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3958.085121][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3958.085123][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3958.085126][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3958.085128][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3958.085130][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3958.085132][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3958.085134][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3958.085138][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3958.085140][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3958.085143][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3958.085145][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3958.085147][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3958.085150][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3958.085153][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3958.085155][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3958.085159][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3958.085162][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3958.085164][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3958.085166][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3958.085169][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3958.085170][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3958.085173][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3958.085174][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3958.085177][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3958.085178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3958.085180][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3958.085183][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3958.085184][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3958.085186][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3958.085188][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3958.085189][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3958.085192][    C3]  vfs_write (fs/read_write.c:686)
[ 3958.085194][    C3]  ksys_write (fs/read_write.c:739)
[ 3958.085196][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3958.085198][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3958.085200][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3958.085204][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3958.085207][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3958.085210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3958.085211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3958.085213][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3958.085214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3958.085214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3958.085215][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3958.085216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 3984.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 3984.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 3984.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 3984.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 3984.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 3984.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 3984.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 3984.385138][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 3984.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 3984.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 3984.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 3984.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 3984.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 3984.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 3984.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3984.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 3984.385154][    C3] PKRU: 55555554
[ 3984.385154][    C3] Call Trace:
[ 3984.385159][    C3]  <TASK>
[ 3984.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 3984.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 3984.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 3984.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 3984.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 3984.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3984.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 3984.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 3984.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 3984.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 3984.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 3984.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 3984.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 3984.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 3984.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 3984.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 3984.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 3984.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3984.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 3984.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 3984.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 3984.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3984.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 3984.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 3984.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 3984.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3984.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 3984.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 3984.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 3984.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3984.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 3984.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 3984.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 3984.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 3984.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 3984.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 3984.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 3984.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 3984.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 3984.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 3984.385260][    C3]  vfs_write (fs/read_write.c:686)
[ 3984.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 3984.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 3984.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 3984.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 3984.385272][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 3984.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 3984.385279][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 3984.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 3984.385282][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 3984.385283][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 3984.385284][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 3984.385285][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 3984.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4012.385103][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4012.385105][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4012.385108][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4012.385116][    C3] Tainted: [L]=SOFTLOCKUP
[ 4012.385118][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4012.385119][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4012.385122][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4012.385123][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4012.385126][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4012.385127][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4012.385128][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4012.385129][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4012.385129][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4012.385132][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4012.385136][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4012.385136][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4012.385137][    C3] PKRU: 55555554
[ 4012.385138][    C3] Call Trace:
[ 4012.385140][    C3]  <TASK>
[ 4012.385142][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4012.385147][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4012.385149][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4012.385153][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4012.385156][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4012.385158][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4012.385161][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4012.385163][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4012.385166][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4012.385168][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4012.385170][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4012.385173][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4012.385175][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4012.385177][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4012.385179][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4012.385181][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4012.385185][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4012.385187][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4012.385189][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4012.385191][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4012.385193][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4012.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4012.385200][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4012.385201][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4012.385205][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4012.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4012.385209][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4012.385211][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4012.385214][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4012.385215][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4012.385217][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4012.385219][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4012.385221][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4012.385223][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4012.385224][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4012.385227][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4012.385228][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4012.385230][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4012.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4012.385233][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4012.385235][    C3]  vfs_write (fs/read_write.c:686)
[ 4012.385238][    C3]  ksys_write (fs/read_write.c:739)
[ 4012.385239][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4012.385241][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4012.385243][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4012.385247][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4012.385250][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4012.385253][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4012.385254][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4012.385255][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4012.385256][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4012.385257][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4012.385257][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4012.385258][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4012.839071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4012.839241][    C3] rcu: 3-....: (3066920 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1013528
| [ 4012.839509][    C3] rcu: (t=3068147 jiffies g=527745 q=64968 ncpus=4)
| [ 4012.839645][    C3] Tainted: [L]=SOFTLOCKUP
[ 4012.839646][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4012.839646][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4012.839648][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4012.839649][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4012.839651][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4012.839652][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4012.839652][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4012.839653][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4012.839654][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4012.839655][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4012.839657][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4012.839658][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4012.839659][    C3] PKRU: 55555554
[ 4012.839660][    C3] Call Trace:
[ 4012.839660][    C3]  <TASK>
[ 4012.839661][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4012.839663][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4012.839665][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4012.839667][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4012.839669][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4012.839671][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4012.839673][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4012.839675][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4012.839678][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4012.839680][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4012.839682][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4012.839684][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4012.839686][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4012.839688][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4012.839690][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4012.839692][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4012.839694][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4012.839696][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4012.839698][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4012.839700][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4012.839702][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4012.839705][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4012.839709][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4012.839711][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4012.839713][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4012.839715][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4012.839716][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4012.839718][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4012.839720][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4012.839721][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4012.839723][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4012.839725][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4012.839726][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4012.839728][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4012.839729][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4012.839731][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4012.839733][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4012.839735][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4012.839736][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4012.839738][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4012.839740][    C3]  vfs_write (fs/read_write.c:686)
[ 4012.839742][    C3]  ksys_write (fs/read_write.c:739)
[ 4012.839744][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4012.839746][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4012.839748][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4012.839750][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4012.839751][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4012.839752][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4012.839753][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4012.839755][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4012.839756][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4012.839756][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4012.839757][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4012.839758][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4040.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4040.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4040.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4040.385103][    C3] Tainted: [L]=SOFTLOCKUP
[ 4040.385104][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4040.385105][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4040.385108][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4040.385109][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4040.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4040.385112][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4040.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4040.385114][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4040.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4040.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4040.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4040.385120][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4040.385121][    C3] PKRU: 55555554
[ 4040.385122][    C3] Call Trace:
[ 4040.385124][    C3]  <TASK>
[ 4040.385126][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4040.385128][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4040.385130][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4040.385132][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4040.385135][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4040.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4040.385139][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4040.385141][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4040.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4040.385146][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4040.385148][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4040.385151][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4040.385153][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4040.385155][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4040.385157][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4040.385159][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4040.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4040.385163][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4040.385165][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4040.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4040.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4040.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4040.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4040.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4040.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4040.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4040.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4040.385184][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4040.385186][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4040.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4040.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4040.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4040.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4040.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4040.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4040.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4040.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4040.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4040.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4040.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4040.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 4040.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 4040.385210][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4040.385212][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4040.385214][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4040.385217][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4040.385219][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4040.385221][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4040.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4040.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4040.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4040.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4040.385225][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4040.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4056.389563][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4056.389745][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4056.389945][    C3] NMI backtrace for cpu 3
| [ 4056.389953][    C3] Tainted: [L]=SOFTLOCKUP
[ 4056.389954][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4056.389956][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4056.389960][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4056.389961][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4056.389963][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4056.389964][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4056.389964][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4056.389966][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4056.389967][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4056.389969][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4056.389971][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4056.389972][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4056.389973][    C3] PKRU: 55555554
[ 4056.389974][    C3] Call Trace:
[ 4056.389976][    C3]  <TASK>
[ 4056.389978][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4056.389980][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4056.389982][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4056.389984][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4056.389986][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4056.389988][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4056.389991][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4056.389993][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4056.389996][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4056.389997][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4056.390000][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4056.390002][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4056.390004][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4056.390006][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4056.390008][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4056.390010][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4056.390012][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4056.390014][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4056.390016][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4056.390018][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4056.390020][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4056.390023][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4056.390025][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4056.390027][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4056.390029][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4056.390030][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4056.390032][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4056.390034][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4056.390036][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4056.390037][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4056.390039][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4056.390041][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4056.390042][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4056.390044][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4056.390046][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4056.390047][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4056.390049][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4056.390051][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4056.390052][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4056.390054][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4056.390056][    C3]  vfs_write (fs/read_write.c:686)
[ 4056.390058][    C3]  ksys_write (fs/read_write.c:739)
[ 4056.390060][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4056.390062][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4056.390064][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4056.390066][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4056.390071][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4056.390074][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4056.390075][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4056.390076][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4056.390077][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4056.390077][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4056.390078][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4056.390079][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4084.385105][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4084.385107][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4084.385110][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4084.385117][    C3] Tainted: [L]=SOFTLOCKUP
[ 4084.385118][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4084.385120][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 4084.385124][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 4084.385127][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 4084.385129][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 4084.385130][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4084.385131][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4084.385131][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4084.385132][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4084.385135][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4084.385138][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4084.385139][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4084.385140][    C3] PKRU: 55555554
[ 4084.385141][    C3] Call Trace:
[ 4084.385143][    C3]  <TASK>
[ 4084.385146][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 4084.385148][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4084.385152][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4084.385154][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4084.385157][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4084.385160][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4084.385162][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4084.385164][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4084.385167][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4084.385170][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4084.385171][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4084.385174][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4084.385176][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4084.385179][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4084.385180][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4084.385182][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4084.385184][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4084.385188][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4084.385189][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4084.385192][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4084.385194][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4084.385195][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4084.385198][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4084.385201][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4084.385203][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4084.385205][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4084.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4084.385208][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4084.385210][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4084.385213][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4084.385214][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4084.385216][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4084.385218][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4084.385220][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4084.385221][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4084.385223][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4084.385225][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4084.385227][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4084.385229][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4084.385230][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4084.385232][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4084.385234][    C3]  vfs_write (fs/read_write.c:686)
[ 4084.385237][    C3]  ksys_write (fs/read_write.c:739)
[ 4084.385239][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4084.385241][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4084.385243][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4084.385246][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4084.385249][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4084.385251][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4084.385252][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4084.385254][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4084.385255][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4084.385255][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4084.385256][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4084.385257][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4090.842072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4090.842275][    C3] rcu: 3-....: (3144891 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1045007
| [ 4090.842553][    C3] rcu: (t=3146150 jiffies g=527745 q=66468 ncpus=4)
| [ 4090.842691][    C3] Tainted: [L]=SOFTLOCKUP
[ 4090.842692][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4090.842693][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4090.842696][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4090.842697][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4090.842699][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4090.842700][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4090.842701][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4090.842701][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4090.842702][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4090.842704][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4090.842707][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4090.842708][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4090.842709][    C3] PKRU: 55555554
[ 4090.842710][    C3] Call Trace:
[ 4090.842710][    C3]  <TASK>
[ 4090.842711][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4090.842714][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4090.842716][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4090.842718][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4090.842720][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4090.842722][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4090.842725][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4090.842727][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4090.842730][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4090.842732][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4090.842734][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4090.842737][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4090.842739][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4090.842740][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4090.842742][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4090.842744][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4090.842747][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4090.842749][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4090.842751][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4090.842753][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4090.842754][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4090.842757][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4090.842760][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4090.842762][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4090.842763][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4090.842765][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4090.842766][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4090.842768][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4090.842770][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4090.842771][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4090.842774][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4090.842775][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4090.842777][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4090.842779][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4090.842780][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4090.842782][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4090.842784][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4090.842785][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4090.842787][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4090.842789][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4090.842791][    C3]  vfs_write (fs/read_write.c:686)
[ 4090.842793][    C3]  ksys_write (fs/read_write.c:739)
[ 4090.842795][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4090.842797][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4090.842799][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4090.842801][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4090.842803][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4090.842804][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4090.842805][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4090.842807][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4090.842807][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4090.842808][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4090.842809][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4090.842809][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4116.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4116.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4116.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4116.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 4116.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4116.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4116.385136][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4116.385138][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4116.385140][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4116.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4116.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4116.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4116.385144][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4116.385147][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4116.385150][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4116.385152][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4116.385153][    C3] PKRU: 55555554
[ 4116.385153][    C3] Call Trace:
[ 4116.385157][    C3]  <TASK>
[ 4116.385161][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4116.385166][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4116.385168][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4116.385172][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4116.385176][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4116.385178][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4116.385180][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4116.385183][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4116.385186][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4116.385188][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4116.385191][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4116.385193][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4116.385196][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4116.385198][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4116.385200][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4116.385202][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4116.385206][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4116.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4116.385210][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4116.385213][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4116.385215][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4116.385218][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4116.385221][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4116.385223][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4116.385226][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4116.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4116.385230][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4116.385232][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4116.385235][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4116.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4116.385239][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4116.385241][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4116.385243][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4116.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4116.385247][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4116.385250][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4116.385251][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4116.385253][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4116.385255][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4116.385256][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4116.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 4116.385261][    C3]  ksys_write (fs/read_write.c:739)
[ 4116.385263][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4116.385265][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4116.385267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4116.385271][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4116.385274][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4116.385279][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4116.385280][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4116.385282][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4116.385283][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4116.385284][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4116.385284][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4116.385285][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4144.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4144.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4144.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4144.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 4144.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4144.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4144.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4144.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4144.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4144.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4144.385145][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4144.385146][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4144.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4144.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4144.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4144.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4144.385155][    C3] PKRU: 55555554
[ 4144.385156][    C3] Call Trace:
[ 4144.385160][    C3]  <TASK>
[ 4144.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4144.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4144.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4144.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4144.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4144.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4144.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4144.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4144.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4144.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4144.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4144.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4144.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4144.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4144.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4144.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4144.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4144.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4144.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4144.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4144.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4144.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4144.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4144.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4144.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4144.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4144.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4144.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4144.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4144.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4144.385243][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4144.385245][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4144.385247][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4144.385249][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4144.385251][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4144.385254][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4144.385255][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4144.385257][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4144.385259][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4144.385260][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4144.385263][    C3]  vfs_write (fs/read_write.c:686)
[ 4144.385265][    C3]  ksys_write (fs/read_write.c:739)
[ 4144.385267][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4144.385269][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4144.385271][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4144.385275][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4144.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4144.385283][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4144.385284][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4144.385286][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4144.385287][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4144.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4144.385288][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4144.385289][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4154.692526][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4154.692753][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4154.693009][    C3] NMI backtrace for cpu 3
| [ 4154.693028][    C3] Tainted: [L]=SOFTLOCKUP
[ 4154.693029][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4154.693032][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4154.693041][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4154.693043][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4154.693047][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4154.693048][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4154.693049][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4154.693050][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4154.693051][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4154.693054][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4154.693057][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4154.693058][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4154.693059][    C3] PKRU: 55555554
[ 4154.693060][    C3] Call Trace:
[ 4154.693064][    C3]  <TASK>
[ 4154.693068][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4154.693075][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4154.693078][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4154.693081][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4154.693086][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4154.693088][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4154.693091][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4154.693094][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4154.693097][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4154.693099][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4154.693101][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4154.693104][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4154.693106][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4154.693108][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4154.693110][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4154.693113][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4154.693117][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4154.693118][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4154.693121][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4154.693123][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4154.693125][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4154.693128][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4154.693131][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4154.693133][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4154.693137][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4154.693139][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4154.693141][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4154.693143][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4154.693146][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4154.693147][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4154.693149][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4154.693151][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4154.693153][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4154.693155][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4154.693157][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4154.693159][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4154.693161][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4154.693163][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4154.693164][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4154.693166][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4154.693168][    C3]  vfs_write (fs/read_write.c:686)
[ 4154.693171][    C3]  ksys_write (fs/read_write.c:739)
[ 4154.693173][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4154.693175][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4154.693177][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4154.693180][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4154.693184][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4154.693188][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4154.693189][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4154.693191][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4154.693192][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4154.693193][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4154.693193][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4154.693194][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4168.846073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4168.846311][    C3] rcu: 3-....: (3222860 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1074286
| [ 4168.846549][    C3] rcu: (t=3224154 jiffies g=527745 q=67965 ncpus=4)
| [ 4168.846684][    C3] Tainted: [L]=SOFTLOCKUP
[ 4168.846685][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4168.846687][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4168.846697][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4168.846698][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4168.846702][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4168.846703][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4168.846704][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4168.846705][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4168.846706][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4168.846709][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4168.846712][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4168.846713][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4168.846714][    C3] PKRU: 55555554
[ 4168.846715][    C3] Call Trace:
[ 4168.846716][    C3]  <TASK>
[ 4168.846717][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4168.846722][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4168.846724][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4168.846728][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4168.846731][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4168.846733][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4168.846737][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4168.846739][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4168.846742][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4168.846743][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4168.846746][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4168.846748][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4168.846751][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4168.846752][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4168.846754][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4168.846757][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4168.846761][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4168.846763][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4168.846765][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4168.846768][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4168.846769][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4168.846772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4168.846775][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4168.846777][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4168.846781][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4168.846784][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4168.846785][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4168.846788][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4168.846790][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4168.846792][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4168.846794][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4168.846796][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4168.846798][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4168.846800][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4168.846802][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4168.846804][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4168.846805][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4168.846807][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4168.846808][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4168.846810][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4168.846812][    C3]  vfs_write (fs/read_write.c:686)
[ 4168.846814][    C3]  ksys_write (fs/read_write.c:739)
[ 4168.846816][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4168.846818][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4168.846820][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4168.846824][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4168.846826][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4168.846829][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4168.846830][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4168.846832][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4168.846833][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4168.846834][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4168.846835][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4168.846835][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4196.385101][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4196.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4196.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4196.385112][    C3] Tainted: [L]=SOFTLOCKUP
[ 4196.385113][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4196.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4196.385117][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4196.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4196.385120][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4196.385121][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4196.385122][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4196.385123][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4196.385124][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4196.385126][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4196.385129][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4196.385130][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4196.385131][    C3] PKRU: 55555554
[ 4196.385132][    C3] Call Trace:
[ 4196.385134][    C3]  <TASK>
[ 4196.385136][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4196.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4196.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4196.385144][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4196.385147][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4196.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4196.385150][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4196.385153][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4196.385156][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4196.385157][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4196.385160][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4196.385162][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4196.385164][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4196.385166][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4196.385168][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4196.385170][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4196.385173][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4196.385174][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4196.385177][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4196.385178][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4196.385180][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4196.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4196.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4196.385187][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4196.385189][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4196.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4196.385192][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4196.385194][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4196.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4196.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4196.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4196.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4196.385203][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4196.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4196.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4196.385208][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4196.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4196.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4196.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4196.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4196.385216][    C3]  vfs_write (fs/read_write.c:686)
[ 4196.385218][    C3]  ksys_write (fs/read_write.c:739)
[ 4196.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4196.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4196.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4196.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4196.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4196.385231][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4196.385232][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4196.385233][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4196.385234][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4196.385235][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4196.385235][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4196.385236][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4224.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4224.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4224.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4224.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 4224.385129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4224.385131][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4224.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4224.385136][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4224.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4224.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4224.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4224.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4224.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4224.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4224.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4224.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4224.385151][    C3] PKRU: 55555554
[ 4224.385152][    C3] Call Trace:
[ 4224.385156][    C3]  <TASK>
[ 4224.385160][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4224.385165][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4224.385167][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4224.385171][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4224.385175][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4224.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4224.385180][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4224.385183][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4224.385186][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4224.385188][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4224.385190][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4224.385193][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4224.385195][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4224.385197][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4224.385199][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4224.385201][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4224.385206][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4224.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4224.385210][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4224.385212][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4224.385214][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4224.385218][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4224.385221][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4224.385223][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4224.385226][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4224.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4224.385231][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4224.385233][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4224.385235][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4224.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4224.385239][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4224.385241][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4224.385243][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4224.385246][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4224.385247][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4224.385249][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4224.385251][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4224.385253][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4224.385254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4224.385256][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4224.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 4224.385261][    C3]  ksys_write (fs/read_write.c:739)
[ 4224.385263][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4224.385264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4224.385267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4224.385270][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4224.385274][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4224.385278][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4224.385279][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4224.385281][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4224.385282][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4224.385283][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4224.385284][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4224.385285][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4246.850071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4246.850345][    C3] rcu: 3-....: (3300839 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1105618
| [ 4246.850599][    C3] rcu: (t=3302158 jiffies g=527745 q=69102 ncpus=4)
| [ 4246.850752][    C3] Tainted: [L]=SOFTLOCKUP
[ 4246.850753][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4246.850754][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4246.850760][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4246.850761][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4246.850764][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4246.850766][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4246.850766][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4246.850768][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4246.850768][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4246.850771][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4246.850774][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4246.850775][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4246.850776][    C3] PKRU: 55555554
[ 4246.850777][    C3] Call Trace:
[ 4246.850777][    C3]  <TASK>
[ 4246.850778][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4246.850782][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4246.850784][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4246.850788][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4246.850791][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4246.850793][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4246.850796][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4246.850798][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4246.850801][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4246.850802][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4246.850805][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4246.850807][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4246.850809][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4246.850811][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4246.850813][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4246.850815][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4246.850819][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4246.850821][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4246.850823][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4246.850825][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4246.850827][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4246.850830][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4246.850833][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4246.850834][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4246.850837][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4246.850840][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4246.850841][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4246.850843][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4246.850846][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4246.850847][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4246.850850][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4246.850851][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4246.850853][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4246.850855][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4246.850857][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4246.850859][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4246.850860][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4246.850862][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4246.850864][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4246.850865][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4246.850868][    C3]  vfs_write (fs/read_write.c:686)
[ 4246.850870][    C3]  ksys_write (fs/read_write.c:739)
[ 4246.850871][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4246.850873][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4246.850875][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4246.850878][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4246.850880][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4246.850884][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4246.850885][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4246.850887][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4246.850888][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4246.850889][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4246.850889][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4246.850890][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4252.996457][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4252.996673][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4252.996846][    C3] NMI backtrace for cpu 3
| [ 4252.996850][    C3] Tainted: [L]=SOFTLOCKUP
[ 4252.996851][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4252.996851][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4252.996854][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4252.996855][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4252.996856][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4252.996857][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4252.996858][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4252.996859][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4252.996860][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4252.996862][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4252.996864][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4252.996865][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4252.996866][    C3] PKRU: 55555554
[ 4252.996866][    C3] Call Trace:
[ 4252.996867][    C3]  <TASK>
[ 4252.996868][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4252.996870][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4252.996872][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4252.996875][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4252.996877][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4252.996878][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4252.996881][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4252.996883][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4252.996886][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4252.996888][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4252.996890][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4252.996892][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4252.996895][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4252.996896][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4252.996898][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4252.996900][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4252.996903][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4252.996904][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4252.996907][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4252.996908][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4252.996910][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4252.996913][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4252.996915][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4252.996917][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4252.996919][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4252.996920][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4252.996922][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4252.996924][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4252.996925][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4252.996927][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4252.996929][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4252.996931][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4252.996932][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4252.996934][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4252.996935][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4252.996937][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4252.996939][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4252.996940][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4252.996942][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4252.996944][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4252.996946][    C3]  vfs_write (fs/read_write.c:686)
[ 4252.996948][    C3]  ksys_write (fs/read_write.c:739)
[ 4252.996950][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4252.996952][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4252.996954][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4252.996956][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4252.996958][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4252.996959][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4252.996960][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4252.996961][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4252.996963][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4252.996963][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4252.996964][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4252.996964][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4280.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4280.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4280.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4280.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 4280.385104][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4280.385105][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4280.385107][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4280.385109][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4280.385110][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4280.385111][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4280.385112][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4280.385113][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4280.385114][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4280.385116][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4280.385119][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4280.385120][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4280.385121][    C3] PKRU: 55555554
[ 4280.385121][    C3] Call Trace:
[ 4280.385122][    C3]  <TASK>
[ 4280.385124][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4280.385126][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4280.385128][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4280.385130][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4280.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4280.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4280.385137][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4280.385139][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4280.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4280.385144][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4280.385146][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4280.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4280.385151][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4280.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4280.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4280.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4280.385159][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4280.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4280.385163][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4280.385165][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4280.385167][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4280.385170][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4280.385172][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4280.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4280.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4280.385177][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4280.385178][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4280.385180][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4280.385182][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4280.385183][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4280.385186][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4280.385187][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4280.385189][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4280.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4280.385192][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4280.385194][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4280.385196][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4280.385198][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4280.385199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4280.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4280.385203][    C3]  vfs_write (fs/read_write.c:686)
[ 4280.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 4280.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4280.385209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4280.385211][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4280.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4280.385215][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4280.385217][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4280.385218][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4280.385219][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4280.385220][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4280.385221][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4280.385221][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4280.385222][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4308.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4308.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4308.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4308.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 4308.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4308.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4308.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4308.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4308.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4308.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4308.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4308.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4308.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4308.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4308.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4308.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4308.385154][    C3] PKRU: 55555554
[ 4308.385155][    C3] Call Trace:
[ 4308.385158][    C3]  <TASK>
[ 4308.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4308.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4308.385169][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4308.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4308.385176][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4308.385178][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4308.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4308.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4308.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4308.385192][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4308.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4308.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4308.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4308.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4308.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4308.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4308.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4308.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4308.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4308.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4308.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4308.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4308.385225][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4308.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4308.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4308.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4308.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4308.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4308.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4308.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4308.385243][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4308.385245][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4308.385247][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4308.385249][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4308.385251][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4308.385253][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4308.385255][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4308.385257][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4308.385258][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4308.385260][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4308.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 4308.385265][    C3]  ksys_write (fs/read_write.c:739)
[ 4308.385267][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4308.385269][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4308.385271][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4308.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4308.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4308.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4308.385282][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4308.385284][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4308.385285][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4308.385286][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4308.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4308.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4324.854073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4324.854335][    C3] rcu: 3-....: (3378810 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1137276
| [ 4324.854555][    C3] rcu: (t=3380162 jiffies g=527745 q=70599 ncpus=4)
| [ 4324.854729][    C3] Tainted: [L]=SOFTLOCKUP
[ 4324.854731][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4324.854733][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4324.854741][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4324.854743][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4324.854746][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4324.854748][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4324.854749][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4324.854750][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4324.854751][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4324.854753][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4324.854756][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4324.854758][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4324.854759][    C3] PKRU: 55555554
[ 4324.854760][    C3] Call Trace:
[ 4324.854760][    C3]  <TASK>
[ 4324.854762][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4324.854767][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4324.854769][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4324.854773][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4324.854776][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4324.854778][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4324.854781][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4324.854783][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4324.854786][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4324.854788][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4324.854790][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4324.854793][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4324.854795][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4324.854797][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4324.854799][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4324.854801][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4324.854806][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4324.854807][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4324.854810][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4324.854812][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4324.854814][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4324.854816][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4324.854820][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4324.854821][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4324.854825][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4324.854827][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4324.854829][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4324.854831][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4324.854833][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4324.854834][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4324.854837][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4324.854838][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4324.854841][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4324.854842][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4324.854844][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4324.854846][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4324.854847][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4324.854849][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4324.854851][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4324.854852][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4324.854855][    C3]  vfs_write (fs/read_write.c:686)
[ 4324.854857][    C3]  ksys_write (fs/read_write.c:739)
[ 4324.854858][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4324.854860][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4324.854863][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4324.854866][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4324.854868][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4324.854871][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4324.854873][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4324.854875][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4324.854875][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4324.854876][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4324.854877][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4324.854878][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4351.300485][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4351.300687][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4351.300843][    C3] NMI backtrace for cpu 3
| [ 4351.300861][    C3] Tainted: [L]=SOFTLOCKUP
[ 4351.300862][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4351.300864][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4351.300874][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4351.300876][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4351.300879][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4351.300881][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4351.300882][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4351.300883][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4351.300884][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4351.300886][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4351.300890][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4351.300891][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4351.300892][    C3] PKRU: 55555554
[ 4351.300893][    C3] Call Trace:
[ 4351.300896][    C3]  <TASK>
[ 4351.300901][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4351.300906][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4351.300908][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4351.300912][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4351.300916][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4351.300918][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4351.300921][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4351.300924][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4351.300927][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4351.300929][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4351.300932][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4351.300934][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4351.300937][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4351.300938][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4351.300941][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4351.300943][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4351.300948][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4351.300950][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4351.300952][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4351.300954][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4351.300956][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4351.300959][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4351.300963][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4351.300964][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4351.300968][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4351.300971][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4351.300972][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4351.300974][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4351.300977][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4351.300979][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4351.300981][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4351.300983][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4351.300985][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4351.300987][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4351.300988][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4351.300991][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4351.300993][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4351.300994][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4351.300996][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4351.300998][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4351.301000][    C3]  vfs_write (fs/read_write.c:686)
[ 4351.301002][    C3]  ksys_write (fs/read_write.c:739)
[ 4351.301004][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4351.301006][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4351.301009][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4351.301012][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4351.301016][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4351.301020][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4351.301021][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4351.301023][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4351.301024][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4351.301025][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4351.301025][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4351.301026][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4376.385118][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4376.385120][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4376.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4376.385133][    C3] Tainted: [L]=SOFTLOCKUP
[ 4376.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4376.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4376.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4376.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4376.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4376.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4376.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4376.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4376.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4376.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4376.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4376.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4376.385156][    C3] PKRU: 55555554
[ 4376.385157][    C3] Call Trace:
[ 4376.385161][    C3]  <TASK>
[ 4376.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4376.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4376.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4376.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4376.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4376.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4376.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4376.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4376.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4376.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4376.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4376.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4376.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4376.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4376.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4376.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4376.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4376.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4376.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4376.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4376.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4376.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4376.385225][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4376.385227][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4376.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4376.385233][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4376.385235][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4376.385237][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4376.385240][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4376.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4376.385244][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4376.385245][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4376.385248][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4376.385250][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4376.385251][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4376.385254][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4376.385256][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4376.385258][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4376.385259][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4376.385261][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4376.385263][    C3]  vfs_write (fs/read_write.c:686)
[ 4376.385265][    C3]  ksys_write (fs/read_write.c:739)
[ 4376.385267][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4376.385269][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4376.385272][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4376.385275][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4376.385279][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4376.385282][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4376.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4376.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4376.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4376.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4376.385288][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4376.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4402.858074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4402.858315][    C3] rcu: 3-....: (3456791 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1171562
| [ 4402.858583][    C3] rcu: (t=3458166 jiffies g=527745 q=71706 ncpus=4)
| [ 4402.858720][    C3] Tainted: [L]=SOFTLOCKUP
[ 4402.858722][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4402.858723][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4402.858731][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4402.858733][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4402.858736][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4402.858738][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4402.858739][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4402.858740][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4402.858741][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4402.858743][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4402.858747][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4402.858748][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4402.858749][    C3] PKRU: 55555554
[ 4402.858750][    C3] Call Trace:
[ 4402.858751][    C3]  <TASK>
[ 4402.858752][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4402.858757][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4402.858759][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4402.858763][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4402.858766][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4402.858768][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4402.858771][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4402.858773][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4402.858776][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4402.858778][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4402.858780][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4402.858783][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4402.858785][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4402.858787][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4402.858789][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4402.858791][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4402.858795][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4402.858797][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4402.858799][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4402.858802][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4402.858803][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4402.858810][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4402.858813][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4402.858815][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4402.858818][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4402.858821][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4402.858822][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4402.858824][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4402.858827][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4402.858828][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4402.858831][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4402.858832][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4402.858835][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4402.858837][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4402.858838][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4402.858840][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4402.858842][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4402.858844][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4402.858845][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4402.858847][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4402.858849][    C3]  vfs_write (fs/read_write.c:686)
[ 4402.858851][    C3]  ksys_write (fs/read_write.c:739)
[ 4402.858853][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4402.858855][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4402.858857][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4402.858860][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4402.858863][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4402.858866][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4402.858867][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4402.858869][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4402.858870][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4402.858871][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4402.858872][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4402.858873][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4428.385101][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4428.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4428.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4428.385112][    C3] Tainted: [L]=SOFTLOCKUP
[ 4428.385113][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4428.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4428.385117][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4428.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4428.385120][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4428.385121][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4428.385122][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4428.385123][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4428.385124][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4428.385126][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4428.385129][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4428.385130][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4428.385131][    C3] PKRU: 55555554
[ 4428.385132][    C3] Call Trace:
[ 4428.385135][    C3]  <TASK>
[ 4428.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4428.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4428.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4428.385144][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4428.385148][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4428.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4428.385152][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4428.385154][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4428.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4428.385159][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4428.385161][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4428.385164][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4428.385166][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4428.385168][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4428.385170][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4428.385172][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4428.385175][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4428.385177][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4428.385179][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4428.385181][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4428.385183][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4428.385186][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4428.385188][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4428.385190][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4428.385192][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4428.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4428.385196][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4428.385198][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4428.385200][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4428.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4428.385203][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4428.385205][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4428.385207][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4428.385209][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4428.385210][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4428.385212][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4428.385214][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4428.385215][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4428.385217][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4428.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4428.385221][    C3]  vfs_write (fs/read_write.c:686)
[ 4428.385223][    C3]  ksys_write (fs/read_write.c:739)
[ 4428.385225][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4428.385227][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4428.385229][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4428.385232][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4428.385234][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4428.385236][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4428.385237][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4428.385239][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4428.385240][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4428.385241][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4428.385241][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4428.385242][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4449.604544][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4449.604733][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4449.604895][    C3] NMI backtrace for cpu 3
| [ 4449.604906][    C3] Tainted: [L]=SOFTLOCKUP
[ 4449.604907][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4449.604909][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4449.604918][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4449.604920][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4449.604923][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4449.604925][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4449.604926][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4449.604927][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4449.604927][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4449.604930][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4449.604933][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4449.604934][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4449.604935][    C3] PKRU: 55555554
[ 4449.604936][    C3] Call Trace:
[ 4449.604938][    C3]  <TASK>
[ 4449.604942][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4449.604947][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4449.604950][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4449.604954][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4449.604958][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4449.604960][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4449.604963][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4449.604966][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4449.604969][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4449.604971][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4449.604974][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4449.604976][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4449.604979][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4449.604981][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4449.604983][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4449.604985][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4449.604989][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4449.604991][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4449.604993][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4449.604996][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4449.604998][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4449.605001][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4449.605004][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4449.605006][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4449.605010][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4449.605013][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4449.605015][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4449.605017][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4449.605020][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4449.605021][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4449.605024][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4449.605025][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4449.605028][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4449.605030][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4449.605031][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4449.605034][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4449.605035][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4449.605037][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4449.605039][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4449.605040][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4449.605043][    C3]  vfs_write (fs/read_write.c:686)
[ 4449.605045][    C3]  ksys_write (fs/read_write.c:739)
[ 4449.605047][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4449.605049][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4449.605051][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4449.605055][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4449.605059][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4449.605062][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4449.605064][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4449.605065][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4449.605066][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4449.605067][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4449.605070][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4449.605071][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4476.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4476.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4476.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4476.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 4476.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4476.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4476.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4476.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4476.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4476.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4476.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4476.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4476.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4476.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4476.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4476.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4476.385154][    C3] PKRU: 55555554
[ 4476.385155][    C3] Call Trace:
[ 4476.385159][    C3]  <TASK>
[ 4476.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4476.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4476.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4476.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4476.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4476.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4476.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4476.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4476.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4476.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4476.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4476.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4476.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4476.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4476.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4476.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4476.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4476.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4476.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4476.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4476.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4476.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4476.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4476.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4476.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4476.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4476.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4476.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4476.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4476.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4476.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4476.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4476.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4476.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4476.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4476.385253][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4476.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4476.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4476.385258][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4476.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4476.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 4476.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 4476.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4476.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4476.385271][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4476.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4476.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4476.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4476.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4476.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4476.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4476.385286][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4476.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4476.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4480.862072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4480.862283][    C3] rcu: 3-....: (3534764 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1204154
| [ 4480.862584][    C3] rcu: (t=3536170 jiffies g=527745 q=73206 ncpus=4)
| [ 4480.862733][    C3] Tainted: [L]=SOFTLOCKUP
[ 4480.862734][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4480.862735][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4480.862743][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4480.862744][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4480.862748][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4480.862749][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4480.862750][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4480.862750][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4480.862751][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4480.862754][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4480.862757][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4480.862758][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4480.862759][    C3] PKRU: 55555554
[ 4480.862760][    C3] Call Trace:
[ 4480.862760][    C3]  <TASK>
[ 4480.862762][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4480.862766][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4480.862769][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4480.862772][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4480.862775][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4480.862777][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4480.862781][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4480.862783][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4480.862786][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4480.862787][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4480.862790][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4480.862792][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4480.862795][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4480.862797][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4480.862799][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4480.862801][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4480.862805][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4480.862807][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4480.862809][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4480.862811][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4480.862813][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4480.862816][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4480.862819][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4480.862821][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4480.862824][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4480.862827][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4480.862829][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4480.862831][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4480.862833][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4480.862835][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4480.862837][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4480.862839][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4480.862841][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4480.862843][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4480.862844][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4480.862846][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4480.862848][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4480.862850][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4480.862851][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4480.862853][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4480.862855][    C3]  vfs_write (fs/read_write.c:686)
[ 4480.862857][    C3]  ksys_write (fs/read_write.c:739)
[ 4480.862859][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4480.862861][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4480.862863][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4480.862866][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4480.862869][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4480.862871][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4480.862872][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4480.862874][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4480.862875][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4480.862875][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4480.862876][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4480.862877][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4508.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4508.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4508.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4508.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 4508.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4508.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4508.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4508.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4508.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4508.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4508.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4508.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4508.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4508.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4508.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4508.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4508.385154][    C3] PKRU: 55555554
[ 4508.385155][    C3] Call Trace:
[ 4508.385158][    C3]  <TASK>
[ 4508.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4508.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4508.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4508.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4508.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4508.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4508.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4508.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4508.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4508.385189][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4508.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4508.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4508.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4508.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4508.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4508.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4508.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4508.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4508.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4508.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4508.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4508.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4508.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4508.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4508.385228][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4508.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4508.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4508.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4508.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4508.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4508.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4508.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4508.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4508.385247][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4508.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4508.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4508.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4508.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4508.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4508.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4508.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 4508.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 4508.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4508.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4508.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4508.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4508.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4508.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4508.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4508.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4508.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4508.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4508.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4508.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4536.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4536.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4536.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4536.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 4536.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4536.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4536.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4536.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4536.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4536.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4536.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4536.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4536.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4536.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4536.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4536.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4536.385156][    C3] PKRU: 55555554
[ 4536.385157][    C3] Call Trace:
[ 4536.385161][    C3]  <TASK>
[ 4536.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4536.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4536.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4536.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4536.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4536.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4536.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4536.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4536.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4536.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4536.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4536.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4536.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4536.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4536.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4536.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4536.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4536.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4536.385214][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4536.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4536.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4536.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4536.385225][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4536.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4536.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4536.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4536.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4536.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4536.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4536.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4536.385243][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4536.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4536.385247][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4536.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4536.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4536.385253][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4536.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4536.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4536.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4536.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4536.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 4536.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 4536.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4536.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4536.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4536.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4536.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4536.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4536.385282][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4536.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4536.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4536.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4536.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4536.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4547.909549][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4547.909703][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4547.909857][    C3] NMI backtrace for cpu 3
| [ 4547.909874][    C3] Tainted: [L]=SOFTLOCKUP
[ 4547.909875][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4547.909878][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4547.909887][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4547.909889][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4547.909893][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4547.909895][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4547.909896][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4547.909897][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4547.909898][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4547.909900][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4547.909903][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4547.909905][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4547.909906][    C3] PKRU: 55555554
[ 4547.909907][    C3] Call Trace:
[ 4547.909910][    C3]  <TASK>
[ 4547.909914][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4547.909919][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4547.909922][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4547.909926][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4547.909930][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4547.909932][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4547.909936][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4547.909938][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4547.909942][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4547.909943][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4547.909946][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4547.909948][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4547.909951][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4547.909953][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4547.909955][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4547.909957][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4547.909961][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4547.909963][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4547.909965][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4547.909968][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4547.909970][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4547.909973][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4547.909976][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4547.909978][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4547.909981][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4547.909984][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4547.909985][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4547.909987][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4547.909990][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4547.909991][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4547.909994][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4547.909995][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4547.909998][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4547.910000][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4547.910001][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4547.910004][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4547.910005][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4547.910007][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4547.910008][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4547.910010][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4547.910012][    C3]  vfs_write (fs/read_write.c:686)
[ 4547.910015][    C3]  ksys_write (fs/read_write.c:739)
[ 4547.910017][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4547.910018][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4547.910021][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4547.910024][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4547.910028][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4547.910031][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4547.910033][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4547.910034][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4547.910035][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4547.910036][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4547.910037][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4547.910038][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4558.866073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4558.866337][    C3] rcu: 3-....: (3612735 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1236051
| [ 4558.866564][    C3] rcu: (t=3614174 jiffies g=527745 q=74703 ncpus=4)
| [ 4558.866760][    C3] Tainted: [L]=SOFTLOCKUP
[ 4558.866761][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4558.866763][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4558.866772][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4558.866774][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4558.866778][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4558.866779][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4558.866780][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4558.866781][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4558.866782][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4558.866785][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4558.866788][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4558.866789][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4558.866790][    C3] PKRU: 55555554
[ 4558.866791][    C3] Call Trace:
[ 4558.866792][    C3]  <TASK>
[ 4558.866793][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4558.866798][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4558.866800][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4558.866804][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4558.866807][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4558.866809][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4558.866813][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4558.866815][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4558.866818][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4558.866819][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4558.866822][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4558.866824][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4558.866827][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4558.866828][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4558.866830][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4558.866833][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4558.866837][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4558.866839][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4558.866841][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4558.866843][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4558.866845][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4558.866848][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4558.866851][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4558.866853][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4558.866856][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4558.866859][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4558.866861][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4558.866863][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4558.866865][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4558.866867][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4558.866869][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4558.866871][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4558.866873][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4558.866875][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4558.866877][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4558.866878][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4558.866880][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4558.866886][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4558.866888][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4558.866889][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4558.866892][    C3]  vfs_write (fs/read_write.c:686)
[ 4558.866894][    C3]  ksys_write (fs/read_write.c:739)
[ 4558.866895][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4558.866897][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4558.866900][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4558.866903][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4558.866906][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4558.866909][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4558.866910][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4558.866912][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4558.866913][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4558.866914][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4558.866914][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4558.866915][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4584.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4584.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4584.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4584.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 4584.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4584.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4584.385136][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4584.385138][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4584.385140][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4584.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4584.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4584.385143][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4584.385144][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4584.385147][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4584.385150][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4584.385151][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4584.385152][    C3] PKRU: 55555554
[ 4584.385153][    C3] Call Trace:
[ 4584.385157][    C3]  <TASK>
[ 4584.385161][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4584.385166][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4584.385168][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4584.385172][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4584.385176][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4584.385178][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4584.385181][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4584.385184][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4584.385187][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4584.385189][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4584.385191][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4584.385194][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4584.385196][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4584.385198][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4584.385200][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4584.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4584.385207][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4584.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4584.385211][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4584.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4584.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4584.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4584.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4584.385224][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4584.385227][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4584.385230][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4584.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4584.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4584.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4584.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4584.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4584.385242][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4584.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4584.385247][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4584.385248][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4584.385251][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4584.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4584.385254][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4584.385256][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4584.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4584.385260][    C3]  vfs_write (fs/read_write.c:686)
[ 4584.385262][    C3]  ksys_write (fs/read_write.c:739)
[ 4584.385264][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4584.385266][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4584.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4584.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4584.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4584.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4584.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4584.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4584.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4584.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4584.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4584.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4612.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4612.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4612.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4612.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 4612.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4612.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4612.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4612.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4612.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4612.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4612.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4612.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4612.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4612.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4612.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4612.385152][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4612.385153][    C3] PKRU: 55555554
[ 4612.385154][    C3] Call Trace:
[ 4612.385157][    C3]  <TASK>
[ 4612.385161][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4612.385166][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4612.385168][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4612.385172][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4612.385176][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4612.385178][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4612.385180][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4612.385183][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4612.385186][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4612.385188][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4612.385190][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4612.385193][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4612.385195][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4612.385197][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4612.385199][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4612.385202][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4612.385206][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4612.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4612.385210][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4612.385212][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4612.385215][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4612.385218][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4612.385221][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4612.385223][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4612.385226][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4612.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4612.385230][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4612.385232][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4612.385235][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4612.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4612.385239][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4612.385241][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4612.385243][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4612.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4612.385246][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4612.385249][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4612.385251][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4612.385252][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4612.385254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4612.385256][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4612.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 4612.385260][    C3]  ksys_write (fs/read_write.c:739)
[ 4612.385262][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4612.385264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4612.385267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4612.385270][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4612.385274][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4612.385278][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4612.385279][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4612.385281][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4612.385282][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4612.385282][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4612.385283][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4612.385284][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4636.869073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4636.869309][    C3] rcu: 3-....: (3690713 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1270778
| [ 4636.869517][    C3] rcu: (t=3692177 jiffies g=527745 q=75843 ncpus=4)
| [ 4636.869692][    C3] Tainted: [L]=SOFTLOCKUP
[ 4636.869694][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4636.869696][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4636.869705][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4636.869707][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4636.869711][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4636.869712][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4636.869713][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4636.869714][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4636.869715][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4636.869718][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4636.869721][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4636.869722][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4636.869723][    C3] PKRU: 55555554
[ 4636.869724][    C3] Call Trace:
[ 4636.869725][    C3]  <TASK>
[ 4636.869726][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4636.869731][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4636.869733][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4636.869737][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4636.869740][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4636.869742][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4636.869745][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4636.869747][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4636.869750][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4636.869752][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4636.869754][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4636.869757][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4636.869759][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4636.869761][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4636.869763][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4636.869765][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4636.869769][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4636.869771][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4636.869773][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4636.869776][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4636.869777][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4636.869780][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4636.869783][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4636.869785][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4636.869789][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4636.869792][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4636.869793][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4636.869795][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4636.869798][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4636.869799][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4636.869802][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4636.869804][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4636.869806][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4636.869808][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4636.869809][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4636.869811][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4636.869813][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4636.869814][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4636.869816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4636.869817][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4636.869820][    C3]  vfs_write (fs/read_write.c:686)
[ 4636.869822][    C3]  ksys_write (fs/read_write.c:739)
[ 4636.869824][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4636.869826][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4636.869828][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4636.869831][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4636.869834][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4636.869837][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4636.869838][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4636.869840][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4636.869841][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4636.869842][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4636.869842][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4636.869843][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4646.212531][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4646.212694][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4646.212859][    C3] NMI backtrace for cpu 3
| [ 4646.212874][    C3] Tainted: [L]=SOFTLOCKUP
[ 4646.212875][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4646.212877][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4646.212885][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4646.212886][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4646.212890][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4646.212891][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4646.212892][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4646.212893][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4646.212894][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4646.212896][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4646.212899][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4646.212900][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4646.212901][    C3] PKRU: 55555554
[ 4646.212902][    C3] Call Trace:
[ 4646.212904][    C3]  <TASK>
[ 4646.212907][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4646.212912][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4646.212914][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4646.212918][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4646.212922][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4646.212923][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4646.212927][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4646.212930][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4646.212933][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4646.212935][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4646.212937][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4646.212940][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4646.212942][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4646.212944][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4646.212946][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4646.212948][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4646.212953][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4646.212954][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4646.212957][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4646.212959][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4646.212961][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4646.212964][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4646.212967][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4646.212969][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4646.212972][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4646.212975][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4646.212977][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4646.212979][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4646.212982][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4646.212983][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4646.212986][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4646.212987][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4646.212990][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4646.212992][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4646.212993][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4646.212996][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4646.212997][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4646.212999][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4646.213001][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4646.213002][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4646.213005][    C3]  vfs_write (fs/read_write.c:686)
[ 4646.213007][    C3]  ksys_write (fs/read_write.c:739)
[ 4646.213009][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4646.213011][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4646.213013][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4646.213016][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4646.213020][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4646.213023][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4646.213024][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4646.213026][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4646.213027][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4646.213028][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4646.213028][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4646.213029][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4672.385111][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4672.385113][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4672.385116][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4672.385124][    C3] Tainted: [L]=SOFTLOCKUP
[ 4672.385125][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4672.385127][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4672.385129][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4672.385131][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4672.385133][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4672.385134][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4672.385135][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4672.385136][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4672.385137][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4672.385140][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4672.385143][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4672.385144][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4672.385144][    C3] PKRU: 55555554
[ 4672.385145][    C3] Call Trace:
[ 4672.385147][    C3]  <TASK>
[ 4672.385150][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4672.385155][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4672.385157][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4672.385161][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4672.385165][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4672.385167][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4672.385169][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4672.385172][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4672.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4672.385177][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4672.385179][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4672.385182][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4672.385184][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4672.385186][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4672.385188][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4672.385190][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4672.385194][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4672.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4672.385198][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4672.385201][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4672.385203][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4672.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4672.385209][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4672.385211][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4672.385214][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4672.385217][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4672.385219][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4672.385221][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4672.385224][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4672.385225][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4672.385228][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4672.385229][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4672.385232][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4672.385234][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4672.385235][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4672.385238][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4672.385239][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4672.385241][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4672.385243][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4672.385244][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4672.385247][    C3]  vfs_write (fs/read_write.c:686)
[ 4672.385249][    C3]  ksys_write (fs/read_write.c:739)
[ 4672.385251][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4672.385253][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4672.385255][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4672.385259][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4672.385262][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4672.385265][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4672.385266][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4672.385267][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4672.385268][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4672.385269][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4672.385270][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4672.385270][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4700.385107][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4700.385109][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4700.385112][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4700.385120][    C3] Tainted: [L]=SOFTLOCKUP
[ 4700.385121][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4700.385122][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4700.385125][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4700.385127][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4700.385129][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4700.385130][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4700.385131][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4700.385132][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4700.385133][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4700.385136][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4700.385139][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4700.385139][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4700.385140][    C3] PKRU: 55555554
[ 4700.385141][    C3] Call Trace:
[ 4700.385143][    C3]  <TASK>
[ 4700.385146][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4700.385150][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4700.385153][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4700.385156][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4700.385161][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4700.385163][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4700.385165][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4700.385167][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4700.385171][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4700.385172][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4700.385175][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4700.385177][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4700.385180][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4700.385182][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4700.385184][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4700.385186][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4700.385190][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4700.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4700.385194][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4700.385196][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4700.385198][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4700.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4700.385205][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4700.385207][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4700.385210][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4700.385213][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4700.385214][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4700.385217][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4700.385219][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4700.385221][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4700.385223][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4700.385225][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4700.385227][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4700.385229][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4700.385231][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4700.385233][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4700.385234][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4700.385236][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4700.385238][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4700.385240][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4700.385242][    C3]  vfs_write (fs/read_write.c:686)
[ 4700.385244][    C3]  ksys_write (fs/read_write.c:739)
[ 4700.385247][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4700.385248][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4700.385251][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4700.385254][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4700.385258][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4700.385260][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4700.385262][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4700.385263][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4700.385264][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4700.385265][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4700.385265][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4700.385266][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4714.872074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4714.872319][    C3] rcu: 3-....: (3768684 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1306674
| [ 4714.872579][    C3] rcu: (t=3770180 jiffies g=527745 q=77343 ncpus=4)
| [ 4714.872735][    C3] Tainted: [L]=SOFTLOCKUP
[ 4714.872736][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4714.872738][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4714.872747][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4714.872749][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4714.872752][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4714.872754][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4714.872755][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4714.872756][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4714.872757][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4714.872759][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4714.872762][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4714.872763][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4714.872764][    C3] PKRU: 55555554
[ 4714.872765][    C3] Call Trace:
[ 4714.872766][    C3]  <TASK>
[ 4714.872767][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4714.872773][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4714.872775][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4714.872779][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4714.872782][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4714.872784][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4714.872787][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4714.872789][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4714.872792][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4714.872794][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4714.872796][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4714.872798][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4714.872801][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4714.872803][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4714.872805][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4714.872807][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4714.872811][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4714.872813][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4714.872815][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4714.872817][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4714.872819][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4714.872822][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4714.872825][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4714.872827][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4714.872830][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4714.872833][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4714.872835][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4714.872837][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4714.872839][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4714.872841][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4714.872843][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4714.872845][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4714.872847][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4714.872849][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4714.872850][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4714.872852][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4714.872854][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4714.872856][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4714.872857][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4714.872859][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4714.872861][    C3]  vfs_write (fs/read_write.c:686)
[ 4714.872863][    C3]  ksys_write (fs/read_write.c:739)
[ 4714.872865][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4714.872867][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4714.872869][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4714.872873][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4714.872875][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4714.872879][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4714.872881][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4714.872882][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4714.872883][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4714.872884][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4714.872885][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4714.872886][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4740.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4740.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4740.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4740.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 4740.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4740.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4740.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4740.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4740.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4740.385142][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4740.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4740.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4740.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4740.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4740.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4740.385152][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4740.385153][    C3] PKRU: 55555554
[ 4740.385154][    C3] Call Trace:
[ 4740.385158][    C3]  <TASK>
[ 4740.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4740.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4740.385169][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4740.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4740.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4740.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4740.385181][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4740.385184][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4740.385187][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4740.385189][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4740.385191][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4740.385194][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4740.385196][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4740.385198][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4740.385200][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4740.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4740.385207][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4740.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4740.385211][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4740.385213][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4740.385215][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4740.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4740.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4740.385223][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4740.385227][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4740.385230][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4740.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4740.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4740.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4740.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4740.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4740.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4740.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4740.385247][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4740.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4740.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4740.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4740.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4740.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4740.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4740.385260][    C3]  vfs_write (fs/read_write.c:686)
[ 4740.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 4740.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4740.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4740.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4740.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4740.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4740.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4740.385282][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4740.385284][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4740.385285][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4740.385286][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4740.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4740.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4744.517543][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4744.517715][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4744.517880][    C3] NMI backtrace for cpu 3
| [ 4744.517898][    C3] Tainted: [L]=SOFTLOCKUP
[ 4744.517899][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4744.517902][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4744.517915][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4744.517918][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4744.517921][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4744.517923][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4744.517924][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4744.517925][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4744.517925][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4744.517928][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4744.517932][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4744.517933][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4744.517934][    C3] PKRU: 55555554
[ 4744.517935][    C3] Call Trace:
[ 4744.517938][    C3]  <TASK>
[ 4744.517943][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4744.517948][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4744.517950][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4744.517954][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4744.517958][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4744.517960][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4744.517963][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4744.517966][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4744.517969][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4744.517971][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4744.517973][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4744.517976][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4744.517979][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4744.517981][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4744.517983][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4744.517985][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4744.517989][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4744.517991][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4744.517994][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4744.517996][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4744.517998][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4744.518001][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4744.518004][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4744.518006][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4744.518010][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4744.518012][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4744.518014][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4744.518016][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4744.518019][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4744.518021][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4744.518023][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4744.518025][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4744.518028][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4744.518030][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4744.518031][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4744.518034][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4744.518035][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4744.518037][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4744.518039][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4744.518040][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4744.518043][    C3]  vfs_write (fs/read_write.c:686)
[ 4744.518045][    C3]  ksys_write (fs/read_write.c:739)
[ 4744.518047][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4744.518049][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4744.518051][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4744.518055][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4744.518059][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4744.518062][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4744.518064][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4744.518066][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4744.518067][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4744.518067][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4744.518071][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4744.518072][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4772.385111][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4772.385113][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4772.385116][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4772.385126][    C3] Tainted: [L]=SOFTLOCKUP
[ 4772.385127][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4772.385128][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4772.385132][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4772.385134][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4772.385136][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4772.385137][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4772.385138][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4772.385139][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4772.385140][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4772.385143][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4772.385146][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4772.385151][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4772.385152][    C3] PKRU: 55555554
[ 4772.385153][    C3] Call Trace:
[ 4772.385156][    C3]  <TASK>
[ 4772.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4772.385164][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4772.385167][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4772.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4772.385174][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4772.385176][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4772.385179][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4772.385181][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4772.385184][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4772.385186][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4772.385188][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4772.385191][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4772.385193][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4772.385195][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4772.385197][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4772.385199][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4772.385204][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4772.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4772.385207][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4772.385210][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4772.385212][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4772.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4772.385218][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4772.385220][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4772.385223][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4772.385226][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4772.385228][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4772.385230][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4772.385232][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4772.385234][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4772.385236][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4772.385238][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4772.385240][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4772.385242][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4772.385243][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4772.385246][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4772.385247][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4772.385249][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4772.385251][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4772.385253][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4772.385255][    C3]  vfs_write (fs/read_write.c:686)
[ 4772.385257][    C3]  ksys_write (fs/read_write.c:739)
[ 4772.385259][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4772.385261][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4772.385263][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4772.385267][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4772.385270][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4772.385273][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4772.385274][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4772.385276][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4772.385277][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4772.385277][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4772.385278][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4772.385279][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4792.875072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4792.875284][    C3] rcu: 3-....: (3846654 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1338566
| [ 4792.875518][    C3] rcu: (t=3848183 jiffies g=527745 q=78843 ncpus=4)
| [ 4792.875708][    C3] Tainted: [L]=SOFTLOCKUP
[ 4792.875709][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4792.875710][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4792.875718][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4792.875719][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4792.875722][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4792.875724][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4792.875724][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4792.875726][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4792.875726][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4792.875729][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4792.875731][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4792.875732][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4792.875733][    C3] PKRU: 55555554
[ 4792.875734][    C3] Call Trace:
[ 4792.875735][    C3]  <TASK>
[ 4792.875736][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4792.875740][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4792.875742][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4792.875745][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4792.875748][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4792.875750][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4792.875753][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4792.875755][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4792.875758][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4792.875760][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4792.875762][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4792.875765][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4792.875767][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4792.875769][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4792.875771][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4792.875773][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4792.875777][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4792.875778][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4792.875780][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4792.875783][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4792.875784][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4792.875787][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4792.875790][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4792.875792][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4792.875795][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4792.875797][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4792.875799][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4792.875801][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4792.875804][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4792.875805][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4792.875807][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4792.875809][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4792.875811][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4792.875813][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4792.875814][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4792.875816][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4792.875818][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4792.875819][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4792.875821][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4792.875822][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4792.875825][    C3]  vfs_write (fs/read_write.c:686)
[ 4792.875827][    C3]  ksys_write (fs/read_write.c:739)
[ 4792.875828][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4792.875830][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4792.875833][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4792.875836][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4792.875838][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4792.875840][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4792.875841][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4792.875842][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4792.875843][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4792.875844][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4792.875844][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4792.875845][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4820.385101][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4820.385102][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4820.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4820.385112][    C3] Tainted: [L]=SOFTLOCKUP
[ 4820.385113][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4820.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4820.385117][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4820.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4820.385120][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4820.385121][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4820.385122][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4820.385123][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4820.385124][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4820.385126][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4820.385129][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4820.385130][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4820.385131][    C3] PKRU: 55555554
[ 4820.385132][    C3] Call Trace:
[ 4820.385134][    C3]  <TASK>
[ 4820.385136][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4820.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4820.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4820.385145][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4820.385148][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4820.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4820.385152][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4820.385154][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4820.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4820.385159][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4820.385161][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4820.385164][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4820.385166][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4820.385168][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4820.385170][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4820.385172][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4820.385176][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4820.385178][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4820.385180][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4820.385182][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4820.385184][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4820.385187][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4820.385189][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4820.385191][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4820.385195][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4820.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4820.385198][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4820.385200][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4820.385203][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4820.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4820.385206][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4820.385208][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4820.385210][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4820.385212][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4820.385213][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4820.385215][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4820.385217][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4820.385218][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4820.385220][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4820.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4820.385224][    C3]  vfs_write (fs/read_write.c:686)
[ 4820.385226][    C3]  ksys_write (fs/read_write.c:739)
[ 4820.385228][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4820.385230][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4820.385232][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4820.385235][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4820.385238][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4820.385240][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4820.385242][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4820.385243][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4820.385244][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4820.385245][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4820.385245][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4820.385246][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4842.820531][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4842.820718][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4842.820913][    C3] NMI backtrace for cpu 3
| [ 4842.820923][    C3] Tainted: [L]=SOFTLOCKUP
[ 4842.820924][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4842.820926][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4842.820931][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4842.820933][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4842.820936][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4842.820937][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4842.820938][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4842.820938][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4842.820939][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4842.820942][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4842.820944][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4842.820945][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4842.820946][    C3] PKRU: 55555554
[ 4842.820947][    C3] Call Trace:
[ 4842.820948][    C3]  <TASK>
[ 4842.820950][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4842.820953][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4842.820955][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4842.820959][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4842.820962][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4842.820964][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4842.820967][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4842.820969][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4842.820972][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4842.820974][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4842.820976][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4842.820978][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4842.820981][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4842.820983][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4842.820985][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4842.820987][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4842.820990][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4842.820992][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4842.820994][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4842.820996][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4842.820998][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4842.821001][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4842.821003][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4842.821005][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4842.821008][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4842.821011][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4842.821012][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4842.821014][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4842.821017][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4842.821018][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4842.821021][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4842.821022][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4842.821024][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4842.821026][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4842.821028][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4842.821030][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4842.821031][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4842.821033][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4842.821034][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4842.821036][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4842.821038][    C3]  vfs_write (fs/read_write.c:686)
[ 4842.821041][    C3]  ksys_write (fs/read_write.c:739)
[ 4842.821042][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4842.821044][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4842.821046][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4842.821049][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4842.821051][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4842.821054][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4842.821055][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4842.821056][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4842.821057][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4842.821058][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4842.821059][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4842.821059][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4868.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4868.385104][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4868.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4868.385113][    C3] Tainted: [L]=SOFTLOCKUP
[ 4868.385114][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4868.385115][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4868.385117][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4868.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4868.385120][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4868.385121][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4868.385121][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4868.385123][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4868.385123][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4868.385126][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4868.385128][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4868.385129][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4868.385129][    C3] PKRU: 55555554
[ 4868.385130][    C3] Call Trace:
[ 4868.385132][    C3]  <TASK>
[ 4868.385134][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4868.385137][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4868.385139][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4868.385143][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4868.385146][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4868.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4868.385150][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4868.385152][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4868.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4868.385156][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4868.385159][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4868.385161][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4868.385163][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4868.385165][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4868.385167][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4868.385169][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4868.385172][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4868.385174][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4868.385176][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4868.385178][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4868.385180][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4868.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4868.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4868.385188][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4868.385190][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4868.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4868.385193][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4868.385195][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4868.385197][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4868.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4868.385201][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4868.385202][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4868.385204][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4868.385206][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4868.385208][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4868.385210][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4868.385211][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4868.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4868.385214][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4868.385216][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4868.385218][    C3]  vfs_write (fs/read_write.c:686)
[ 4868.385220][    C3]  ksys_write (fs/read_write.c:739)
[ 4868.385222][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4868.385224][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4868.385226][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4868.385229][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4868.385231][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4868.385233][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4868.385234][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4868.385236][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4868.385237][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4868.385237][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4868.385238][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4868.385238][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4870.878071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4870.878277][    C3] rcu: 3-....: (3924624 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1369682
| [ 4870.878553][    C3] rcu: (t=3926186 jiffies g=527745 q=80343 ncpus=4)
| [ 4870.878694][    C3] Tainted: [L]=SOFTLOCKUP
[ 4870.878695][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4870.878696][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4870.878700][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4870.878702][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4870.878704][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4870.878705][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4870.878705][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4870.878706][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4870.878707][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4870.878709][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4870.878711][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4870.878712][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4870.878713][    C3] PKRU: 55555554
[ 4870.878713][    C3] Call Trace:
[ 4870.878714][    C3]  <TASK>
[ 4870.878714][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4870.878717][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4870.878719][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4870.878722][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4870.878725][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4870.878726][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4870.878730][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4870.878732][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4870.878735][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4870.878736][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4870.878739][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4870.878741][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4870.878743][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4870.878745][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4870.878747][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4870.878749][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4870.878752][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4870.878754][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4870.878756][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4870.878758][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4870.878760][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4870.878763][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4870.878765][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4870.878767][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4870.878770][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4870.878772][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4870.878773][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4870.878775][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4870.878778][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4870.878779][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4870.878782][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4870.878783][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4870.878785][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4870.878787][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4870.878788][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4870.878790][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4870.878792][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4870.878794][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4870.878795][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4870.878797][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4870.878799][    C3]  vfs_write (fs/read_write.c:686)
[ 4870.878801][    C3]  ksys_write (fs/read_write.c:739)
[ 4870.878803][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4870.878805][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4870.878807][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4870.878809][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4870.878811][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4870.878813][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4870.878814][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4870.878815][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4870.878816][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4870.878816][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4870.878817][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4870.878818][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4896.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4896.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4896.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4896.385114][    C3] Tainted: [L]=SOFTLOCKUP
[ 4896.385115][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4896.385116][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4896.385119][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4896.385120][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4896.385122][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4896.385123][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4896.385124][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4896.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4896.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4896.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4896.385130][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4896.385131][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4896.385132][    C3] PKRU: 55555554
[ 4896.385133][    C3] Call Trace:
[ 4896.385135][    C3]  <TASK>
[ 4896.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4896.385141][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4896.385143][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4896.385146][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4896.385149][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4896.385151][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4896.385153][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4896.385155][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4896.385158][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4896.385160][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4896.385162][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4896.385165][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4896.385167][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4896.385169][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4896.385171][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4896.385173][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4896.385176][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4896.385178][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4896.385180][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4896.385182][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4896.385184][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4896.385187][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4896.385190][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4896.385191][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4896.385194][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4896.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4896.385198][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4896.385200][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4896.385203][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4896.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4896.385207][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4896.385208][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4896.385210][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4896.385212][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4896.385214][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4896.385216][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4896.385217][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4896.385219][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4896.385220][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4896.385222][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4896.385225][    C3]  vfs_write (fs/read_write.c:686)
[ 4896.385227][    C3]  ksys_write (fs/read_write.c:739)
[ 4896.385229][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4896.385231][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4896.385233][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4896.385236][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4896.385240][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4896.385242][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4896.385243][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4896.385244][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4896.385245][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4896.385246][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4896.385246][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4896.385247][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4924.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4924.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4924.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4924.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 4924.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4924.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4924.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4924.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4924.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4924.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4924.385143][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4924.385144][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4924.385145][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4924.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4924.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4924.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4924.385154][    C3] PKRU: 55555554
[ 4924.385155][    C3] Call Trace:
[ 4924.385158][    C3]  <TASK>
[ 4924.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4924.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4924.385169][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4924.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4924.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4924.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4924.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4924.385189][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4924.385194][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4924.385196][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4924.385199][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4924.385203][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4924.385206][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4924.385209][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4924.385213][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4924.385216][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4924.385222][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4924.385224][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4924.385227][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4924.385229][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4924.385231][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4924.385235][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4924.385238][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4924.385239][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4924.385243][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4924.385246][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4924.385247][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4924.385250][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4924.385252][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4924.385254][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4924.385256][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4924.385258][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4924.385260][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4924.385262][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4924.385264][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4924.385266][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4924.385268][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4924.385270][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4924.385271][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4924.385273][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4924.385275][    C3]  vfs_write (fs/read_write.c:686)
[ 4924.385278][    C3]  ksys_write (fs/read_write.c:739)
[ 4924.385279][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4924.385281][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4924.385284][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4924.385287][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4924.385290][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4924.385294][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4924.385295][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4924.385297][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4924.385298][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4924.385299][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4924.385299][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4924.385300][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4941.124524][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 4941.124698][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 4941.124886][    C3] NMI backtrace for cpu 3
| [ 4941.124897][    C3] Tainted: [L]=SOFTLOCKUP
[ 4941.124898][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4941.124900][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4941.124908][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4941.124910][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4941.124913][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4941.124914][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4941.124915][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4941.124916][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4941.124916][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4941.124919][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4941.124922][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4941.124923][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4941.124924][    C3] PKRU: 55555554
[ 4941.124925][    C3] Call Trace:
[ 4941.124927][    C3]  <TASK>
[ 4941.124929][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4941.124934][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4941.124936][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4941.124940][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4941.124944][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4941.124945][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4941.124949][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4941.124951][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4941.124954][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4941.124956][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4941.124958][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4941.124961][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4941.124963][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4941.124965][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4941.124967][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4941.124969][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4941.124974][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4941.124976][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4941.124978][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4941.124980][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4941.124982][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4941.124985][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4941.124988][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4941.124990][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4941.124994][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4941.124996][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4941.124998][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4941.125000][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4941.125003][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4941.125004][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4941.125007][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4941.125009][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4941.125011][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4941.125013][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4941.125015][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4941.125017][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4941.125019][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4941.125020][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4941.125022][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4941.125023][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4941.125026][    C3]  vfs_write (fs/read_write.c:686)
[ 4941.125028][    C3]  ksys_write (fs/read_write.c:739)
[ 4941.125030][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4941.125032][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4941.125034][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4941.125038][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4941.125041][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4941.125044][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4941.125046][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4941.125048][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4941.125049][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4941.125049][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4941.125050][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4941.125051][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4948.882073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 4948.882384][    C3] rcu: 3-....: (4002595 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1401717
| [ 4948.882619][    C3] rcu: (t=4004190 jiffies g=527745 q=81840 ncpus=4)
| [ 4948.882810][    C3] Tainted: [L]=SOFTLOCKUP
[ 4948.882811][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4948.882812][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4948.882820][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4948.882822][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4948.882826][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4948.882827][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4948.882828][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4948.882829][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4948.882830][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4948.882833][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4948.882836][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4948.882837][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4948.882838][    C3] PKRU: 55555554
[ 4948.882839][    C3] Call Trace:
[ 4948.882840][    C3]  <TASK>
[ 4948.882841][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4948.882845][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4948.882848][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4948.882852][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4948.882855][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4948.882857][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4948.882860][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4948.882862][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4948.882865][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4948.882867][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4948.882869][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4948.882871][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4948.882874][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4948.882875][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4948.882878][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4948.882880][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4948.882884][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4948.882886][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4948.882888][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4948.882890][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4948.882892][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4948.882895][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4948.882898][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4948.882900][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4948.882904][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4948.882906][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4948.882908][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4948.882910][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4948.882913][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4948.882914][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4948.882917][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4948.882918][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4948.882921][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4948.882922][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4948.882924][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4948.882926][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4948.882927][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4948.882929][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4948.882931][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4948.882932][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4948.882935][    C3]  vfs_write (fs/read_write.c:686)
[ 4948.882937][    C3]  ksys_write (fs/read_write.c:739)
[ 4948.882939][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4948.882941][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4948.882943][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4948.882946][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4948.882949][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4948.882952][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4948.882953][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4948.882955][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4948.882956][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4948.882956][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4948.882957][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4948.882958][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 4976.385110][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 4976.385112][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 4976.385115][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 4976.385124][    C3] Tainted: [L]=SOFTLOCKUP
[ 4976.385125][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4976.385127][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 4976.385130][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 4976.385132][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 4976.385134][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 4976.385135][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 4976.385136][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 4976.385137][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 4976.385138][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 4976.385141][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 4976.385144][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4976.385145][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 4976.385146][    C3] PKRU: 55555554
[ 4976.385147][    C3] Call Trace:
[ 4976.385150][    C3]  <TASK>
[ 4976.385152][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 4976.385158][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 4976.385160][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 4976.385164][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 4976.385167][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 4976.385169][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4976.385171][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 4976.385174][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 4976.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 4976.385179][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 4976.385181][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 4976.385184][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 4976.385186][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 4976.385188][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 4976.385190][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 4976.385192][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 4976.385197][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 4976.385199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4976.385201][    C3]  ? release_sock (net/core/sock.c:3794)
[ 4976.385203][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 4976.385205][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 4976.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4976.385212][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 4976.385213][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 4976.385217][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 4976.385220][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4976.385222][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 4976.385224][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 4976.385227][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 4976.385228][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4976.385231][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 4976.385232][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 4976.385235][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 4976.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 4976.385238][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 4976.385241][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 4976.385242][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 4976.385244][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 4976.385246][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 4976.385247][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 4976.385250][    C3]  vfs_write (fs/read_write.c:686)
[ 4976.385252][    C3]  ksys_write (fs/read_write.c:739)
[ 4976.385254][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 4976.385256][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 4976.385258][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 4976.385262][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 4976.385265][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 4976.385268][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 4976.385269][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 4976.385271][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 4976.385272][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 4976.385273][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 4976.385274][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 4976.385275][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5004.385111][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5004.385112][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5004.385115][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5004.385125][    C3] Tainted: [L]=SOFTLOCKUP
[ 5004.385126][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5004.385127][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5004.385131][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5004.385132][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5004.385135][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5004.385136][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5004.385137][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5004.385138][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5004.385139][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5004.385142][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5004.385145][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5004.385146][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5004.385147][    C3] PKRU: 55555554
[ 5004.385148][    C3] Call Trace:
[ 5004.385151][    C3]  <TASK>
[ 5004.385154][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5004.385159][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5004.385162][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5004.385165][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5004.385169][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5004.385171][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5004.385173][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5004.385176][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5004.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5004.385181][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5004.385183][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5004.385186][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5004.385188][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5004.385190][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5004.385192][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5004.385194][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5004.385198][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5004.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5004.385202][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5004.385205][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5004.385207][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5004.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5004.385213][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5004.385215][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5004.385219][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5004.385221][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5004.385223][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5004.385225][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5004.385228][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5004.385229][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5004.385232][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5004.385234][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5004.385236][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5004.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5004.385239][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5004.385242][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5004.385244][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5004.385246][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5004.385247][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5004.385249][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5004.385251][    C3]  vfs_write (fs/read_write.c:686)
[ 5004.385254][    C3]  ksys_write (fs/read_write.c:739)
[ 5004.385256][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5004.385257][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5004.385260][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5004.385263][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5004.385267][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5004.385270][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5004.385271][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5004.385273][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5004.385274][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5004.385274][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5004.385275][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5004.385276][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5026.886073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5026.886282][    C3] rcu: 3-....: (4080574 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1434823
| [ 5026.886473][    C3] rcu: (t=4082194 jiffies g=527745 q=82980 ncpus=4)
| [ 5026.886655][    C3] Tainted: [L]=SOFTLOCKUP
[ 5026.886656][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5026.886658][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5026.886666][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5026.886668][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5026.886672][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5026.886674][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5026.886675][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5026.886676][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5026.886676][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5026.886679][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5026.886682][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5026.886683][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5026.886684][    C3] PKRU: 55555554
[ 5026.886685][    C3] Call Trace:
[ 5026.886686][    C3]  <TASK>
[ 5026.886687][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5026.886692][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5026.886694][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5026.886698][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5026.886701][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5026.886703][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5026.886706][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5026.886708][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5026.886711][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5026.886713][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5026.886715][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5026.886718][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5026.886720][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5026.886722][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5026.886724][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5026.886726][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5026.886730][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5026.886732][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5026.886734][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5026.886737][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5026.886738][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5026.886741][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5026.886744][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5026.886746][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5026.886749][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5026.886752][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5026.886753][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5026.886756][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5026.886758][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5026.886759][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5026.886762][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5026.886763][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5026.886766][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5026.886768][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5026.886769][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5026.886771][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5026.886773][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5026.886774][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5026.886776][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5026.886777][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5026.886780][    C3]  vfs_write (fs/read_write.c:686)
[ 5026.886782][    C3]  ksys_write (fs/read_write.c:739)
[ 5026.886784][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5026.886785][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5026.886788][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5026.886791][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5026.886794][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5026.886796][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5026.886798][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5026.886799][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5026.886800][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5026.886801][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5026.886802][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5026.886803][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5039.428445][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5039.428632][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5039.428774][    C3] NMI backtrace for cpu 3
| [ 5039.428784][    C3] Tainted: [L]=SOFTLOCKUP
[ 5039.428785][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5039.428787][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5039.428795][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5039.428797][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5039.428800][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5039.428801][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5039.428802][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5039.428803][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5039.428804][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5039.428807][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5039.428810][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5039.428811][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5039.428812][    C3] PKRU: 55555554
[ 5039.428813][    C3] Call Trace:
[ 5039.428814][    C3]  <TASK>
[ 5039.428817][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5039.428822][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5039.428824][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5039.428828][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5039.428832][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5039.428834][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5039.428838][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5039.428840][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5039.428843][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5039.428845][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5039.428847][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5039.428850][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5039.428853][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5039.428854][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5039.428856][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5039.428859][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5039.428863][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5039.428865][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5039.428867][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5039.428869][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5039.428871][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5039.428874][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5039.428878][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5039.428879][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5039.428883][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5039.428886][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5039.428887][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5039.428889][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5039.428893][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5039.428894][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5039.428897][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5039.428898][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5039.428901][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5039.428903][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5039.428904][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5039.428906][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5039.428908][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5039.428910][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5039.428911][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5039.428913][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5039.428915][    C3]  vfs_write (fs/read_write.c:686)
[ 5039.428918][    C3]  ksys_write (fs/read_write.c:739)
[ 5039.428920][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5039.428921][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5039.428924][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5039.428927][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5039.428930][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5039.428933][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5039.428935][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5039.428936][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5039.428937][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5039.428938][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5039.428939][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5039.428939][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5064.385112][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5064.385114][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5064.385117][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5064.385125][    C3] Tainted: [L]=SOFTLOCKUP
[ 5064.385126][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5064.385127][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5064.385131][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5064.385133][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5064.385135][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5064.385136][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5064.385137][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5064.385138][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5064.385139][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5064.385142][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5064.385145][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5064.385146][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5064.385147][    C3] PKRU: 55555554
[ 5064.385148][    C3] Call Trace:
[ 5064.385151][    C3]  <TASK>
[ 5064.385154][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5064.385159][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5064.385161][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5064.385165][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5064.385169][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5064.385171][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5064.385173][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5064.385175][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5064.385178][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5064.385180][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5064.385182][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5064.385185][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5064.385187][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5064.385189][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5064.385191][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5064.385194][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5064.385198][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5064.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5064.385202][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5064.385204][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5064.385206][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5064.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5064.385213][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5064.385215][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5064.385218][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5064.385221][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5064.385223][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5064.385225][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5064.385227][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5064.385229][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5064.385231][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5064.385233][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5064.385235][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5064.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5064.385239][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5064.385241][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5064.385243][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5064.385245][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5064.385246][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5064.385248][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5064.385250][    C3]  vfs_write (fs/read_write.c:686)
[ 5064.385253][    C3]  ksys_write (fs/read_write.c:739)
[ 5064.385255][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5064.385256][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5064.385259][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5064.385263][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5064.385266][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5064.385269][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5064.385271][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5064.385273][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5064.385274][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5064.385274][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5064.385275][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5064.385276][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5092.385109][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5092.385111][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5092.385114][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5092.385123][    C3] Tainted: [L]=SOFTLOCKUP
[ 5092.385124][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5092.385125][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5092.385129][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5092.385130][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5092.385133][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5092.385134][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5092.385135][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5092.385136][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5092.385137][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5092.385139][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5092.385143][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5092.385144][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5092.385145][    C3] PKRU: 55555554
[ 5092.385146][    C3] Call Trace:
[ 5092.385148][    C3]  <TASK>
[ 5092.385151][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5092.385156][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5092.385158][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5092.385162][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5092.385166][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5092.385168][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5092.385171][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5092.385173][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5092.385176][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5092.385178][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5092.385180][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5092.385183][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5092.385185][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5092.385187][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5092.385189][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5092.385191][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5092.385195][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5092.385197][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5092.385199][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5092.385201][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5092.385203][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5092.385207][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5092.385210][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5092.385211][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5092.385215][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5092.385218][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5092.385220][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5092.385222][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5092.385225][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5092.385226][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5092.385228][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5092.385230][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5092.385232][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5092.385234][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5092.385236][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5092.385238][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5092.385240][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5092.385242][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5092.385243][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5092.385245][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5092.385247][    C3]  vfs_write (fs/read_write.c:686)
[ 5092.385250][    C3]  ksys_write (fs/read_write.c:739)
[ 5092.385251][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5092.385253][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5092.385256][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5092.385259][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5092.385263][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5092.385266][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5092.385267][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5092.385269][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5092.385270][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5092.385271][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5092.385271][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5092.385272][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5104.890072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5104.890291][    C3] rcu: 3-....: (4158545 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1468806
| [ 5104.890539][    C3] rcu: (t=4160198 jiffies g=527745 q=84477 ncpus=4)
| [ 5104.890660][    C3] Tainted: [L]=SOFTLOCKUP
[ 5104.890661][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5104.890662][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5104.890671][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5104.890672][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5104.890675][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5104.890677][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5104.890678][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5104.890679][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5104.890680][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5104.890682][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5104.890685][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5104.890686][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5104.890687][    C3] PKRU: 55555554
[ 5104.890688][    C3] Call Trace:
[ 5104.890689][    C3]  <TASK>
[ 5104.890690][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5104.890695][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5104.890697][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5104.890701][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5104.890704][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5104.890706][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5104.890709][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5104.890712][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5104.890715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5104.890716][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5104.890719][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5104.890721][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5104.890723][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5104.890725][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5104.890728][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5104.890730][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5104.890734][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5104.890736][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5104.890738][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5104.890740][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5104.890742][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5104.890745][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5104.890748][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5104.890750][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5104.890753][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5104.890756][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5104.890757][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5104.890759][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5104.890762][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5104.890764][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5104.890766][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5104.890768][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5104.890770][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5104.890772][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5104.890773][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5104.890775][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5104.890777][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5104.890778][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5104.890780][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5104.890781][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5104.890784][    C3]  vfs_write (fs/read_write.c:686)
[ 5104.890786][    C3]  ksys_write (fs/read_write.c:739)
[ 5104.890788][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5104.890790][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5104.890792][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5104.890795][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5104.890798][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5104.890800][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5104.890801][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5104.890803][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5104.890804][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5104.890805][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5104.890805][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5104.890806][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5132.385110][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5132.385111][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5132.385115][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5132.385123][    C3] Tainted: [L]=SOFTLOCKUP
[ 5132.385125][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5132.385126][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:97 mm/kasan/generic.c:115 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 5132.385132][    C3] Code: 4c 89 d1 4c 89 d8 4c 29 d9 e9 19 ff ff ff 48 85 c9 74 8c 4c 01 c9 eb 1b 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 48 83 c0 01 <48> 39 c8 0f 84 6c ff ff ff 80 38 00 74 ee e9 47 ff ff ff b8 01 00
All code
========
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 89 d8             	mov    %r11,%rax
   6:	4c 29 d9             	sub    %r11,%rcx
   9:	e9 19 ff ff ff       	jmp    0xffffffffffffff27
   e:	48 85 c9             	test   %rcx,%rcx
  11:	74 8c                	je     0xffffffffffffff9f
  13:	4c 01 c9             	add    %r9,%rcx
  16:	eb 1b                	jmp    0x33
  18:	0f 1f 00             	nopl   (%rax)
  1b:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  22:	00 00 00 00 
  26:	48 83 c0 01          	add    $0x1,%rax
  2a:*	48 39 c8             	cmp    %rcx,%rax		<-- trapping instruction
  2d:	0f 84 6c ff ff ff    	je     0xffffffffffffff9f
  33:	80 38 00             	cmpb   $0x0,(%rax)
  36:	74 ee                	je     0x26
  38:	e9 47 ff ff ff       	jmp    0xffffffffffffff84
  3d:	b8                   	.byte 0xb8
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 39 c8             	cmp    %rcx,%rax
   3:	0f 84 6c ff ff ff    	je     0xffffffffffffff75
   9:	80 38 00             	cmpb   $0x0,(%rax)
   c:	74 ee                	je     0xfffffffffffffffc
   e:	e9 47 ff ff ff       	jmp    0xffffffffffffff5a
  13:	b8                   	.byte 0xb8
  14:	01 00                	add    %eax,(%rax)
[ 5132.385134][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000286
[ 5132.385136][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: ffe21c000221716a
[ 5132.385137][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5132.385139][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5132.385140][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5132.385140][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 5132.385143][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5132.385146][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5132.385147][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5132.385148][    C3] PKRU: 55555554
[ 5132.385149][    C3] Call Trace:
[ 5132.385152][    C3]  <TASK>
[ 5132.385154][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 5132.385158][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5132.385162][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5132.385164][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5132.385167][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5132.385171][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5132.385173][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5132.385175][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5132.385177][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5132.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5132.385182][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5132.385184][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5132.385187][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5132.385189][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5132.385191][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5132.385193][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5132.385196][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5132.385200][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5132.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5132.385204][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5132.385206][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5132.385208][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5132.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5132.385215][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5132.385217][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5132.385220][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5132.385222][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5132.385224][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5132.385226][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5132.385229][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5132.385230][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5132.385233][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5132.385234][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5132.385237][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5132.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5132.385240][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5132.385243][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5132.385244][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5132.385246][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5132.385248][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5132.385249][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5132.385252][    C3]  vfs_write (fs/read_write.c:686)
[ 5132.385254][    C3]  ksys_write (fs/read_write.c:739)
[ 5132.385256][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5132.385258][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5132.385260][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5132.385264][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5132.385267][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5132.385270][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5132.385272][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5132.385274][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5132.385274][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5132.385275][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5132.385276][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5132.385277][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5137.732498][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5137.732716][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5137.732881][    C3] NMI backtrace for cpu 3
| [ 5137.732889][    C3] Tainted: [L]=SOFTLOCKUP
[ 5137.732890][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5137.732891][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5137.732898][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5137.732899][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5137.732901][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5137.732903][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5137.732904][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5137.732904][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5137.732905][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5137.732908][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5137.732911][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5137.732912][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5137.732913][    C3] PKRU: 55555554
[ 5137.732913][    C3] Call Trace:
[ 5137.732914][    C3]  <TASK>
[ 5137.732917][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5137.732920][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5137.732923][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5137.732926][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5137.732929][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5137.732931][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5137.732934][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5137.732936][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5137.732939][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5137.732941][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5137.732943][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5137.732946][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5137.732948][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5137.732950][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5137.732952][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5137.732954][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5137.732958][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5137.732960][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5137.732962][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5137.732964][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5137.732966][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5137.732970][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5137.732972][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5137.732974][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5137.732977][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5137.732980][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5137.732981][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5137.732983][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5137.732986][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5137.732987][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5137.732989][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5137.732991][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5137.732994][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5137.732995][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5137.732997][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5137.732999][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5137.733001][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5137.733002][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5137.733004][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5137.733006][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5137.733008][    C3]  vfs_write (fs/read_write.c:686)
[ 5137.733010][    C3]  ksys_write (fs/read_write.c:739)
[ 5137.733012][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5137.733014][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5137.733016][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5137.733019][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5137.733022][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5137.733025][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5137.733026][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5137.733027][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5137.733028][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5137.733029][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5137.733030][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5137.733030][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5164.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5164.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5164.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5164.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 5164.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5164.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5164.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5164.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5164.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5164.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5164.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5164.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5164.385147][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5164.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5164.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5164.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5164.385156][    C3] PKRU: 55555554
[ 5164.385156][    C3] Call Trace:
[ 5164.385160][    C3]  <TASK>
[ 5164.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5164.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5164.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5164.385176][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5164.385180][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5164.385182][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5164.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5164.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5164.385191][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5164.385192][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5164.385195][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5164.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5164.385200][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5164.385202][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5164.385204][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5164.385206][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5164.385211][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5164.385212][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5164.385215][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5164.385217][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5164.385219][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5164.385222][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5164.385226][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5164.385228][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5164.385231][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5164.385234][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5164.385236][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5164.385241][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5164.385244][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5164.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5164.385248][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5164.385249][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5164.385252][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5164.385254][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5164.385255][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5164.385258][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5164.385260][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5164.385262][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5164.385263][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5164.385265][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5164.385267][    C3]  vfs_write (fs/read_write.c:686)
[ 5164.385270][    C3]  ksys_write (fs/read_write.c:739)
[ 5164.385272][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5164.385274][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5164.385276][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5164.385280][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5164.385284][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5164.385288][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5164.385289][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5164.385291][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5164.385292][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5164.385293][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5164.385294][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5164.385295][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5182.893073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5182.893319][    C3] rcu: 3-....: (4236515 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1504256
| [ 5182.893541][    C3] rcu: (t=4238201 jiffies g=527745 q=85977 ncpus=4)
| [ 5182.893728][    C3] Tainted: [L]=SOFTLOCKUP
[ 5182.893729][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5182.893731][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5182.893741][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5182.893743][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5182.893746][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5182.893747][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5182.893748][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5182.893749][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5182.893750][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5182.893753][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5182.893756][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5182.893757][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5182.893758][    C3] PKRU: 55555554
[ 5182.893759][    C3] Call Trace:
[ 5182.893760][    C3]  <TASK>
[ 5182.893761][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5182.893766][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5182.893768][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5182.893772][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5182.893775][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5182.893777][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5182.893781][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5182.893783][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5182.893786][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5182.893787][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5182.893790][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5182.893792][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5182.893794][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5182.893796][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5182.893798][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5182.893801][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5182.893805][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5182.893807][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5182.893809][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5182.893811][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5182.893813][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5182.893816][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5182.893819][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5182.893821][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5182.893825][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5182.893827][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5182.893829][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5182.893831][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5182.893833][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5182.893835][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5182.893837][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5182.893839][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5182.893841][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5182.893843][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5182.893844][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5182.893846][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5182.893848][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5182.893849][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5182.893851][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5182.893852][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5182.893855][    C3]  vfs_write (fs/read_write.c:686)
[ 5182.893857][    C3]  ksys_write (fs/read_write.c:739)
[ 5182.893859][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5182.893861][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5182.893863][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5182.893866][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5182.893869][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5182.893872][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5182.893873][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5182.893875][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5182.893876][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5182.893877][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5182.893878][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5182.893879][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5208.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5208.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5208.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5208.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 5208.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5208.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5208.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5208.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5208.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5208.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5208.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5208.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5208.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5208.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5208.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5208.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5208.385154][    C3] PKRU: 55555554
[ 5208.385155][    C3] Call Trace:
[ 5208.385158][    C3]  <TASK>
[ 5208.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5208.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5208.385169][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5208.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5208.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5208.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5208.385181][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5208.385184][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5208.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5208.385189][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5208.385191][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5208.385194][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5208.385196][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5208.385198][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5208.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5208.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5208.385207][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5208.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5208.385211][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5208.385213][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5208.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5208.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5208.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5208.385224][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5208.385227][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5208.385230][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5208.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5208.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5208.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5208.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5208.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5208.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5208.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5208.385247][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5208.385248][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5208.385251][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5208.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5208.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5208.385256][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5208.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5208.385260][    C3]  vfs_write (fs/read_write.c:686)
[ 5208.385262][    C3]  ksys_write (fs/read_write.c:739)
[ 5208.385264][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5208.385266][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5208.385268][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5208.385272][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5208.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5208.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5208.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5208.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5208.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5208.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5208.385285][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5208.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5236.037520][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5236.037670][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5236.037826][    C3] NMI backtrace for cpu 3
| [ 5236.037845][    C3] Tainted: [L]=SOFTLOCKUP
[ 5236.037846][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5236.037849][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5236.037858][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5236.037860][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5236.037863][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5236.037865][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5236.037866][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5236.037867][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5236.037868][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5236.037870][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5236.037873][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5236.037875][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5236.037875][    C3] PKRU: 55555554
[ 5236.037876][    C3] Call Trace:
[ 5236.037880][    C3]  <TASK>
[ 5236.037884][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5236.037890][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5236.037892][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5236.037896][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5236.037900][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5236.037902][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5236.037905][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5236.037908][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5236.037911][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5236.037913][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5236.037915][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5236.037918][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5236.037920][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5236.037922][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5236.037925][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5236.037927][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5236.037931][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5236.037933][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5236.037935][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5236.037938][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5236.037940][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5236.037943][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5236.037946][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5236.037948][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5236.037952][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5236.037954][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5236.037956][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5236.037958][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5236.037961][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5236.037962][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5236.037965][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5236.037966][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5236.037969][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5236.037971][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5236.037972][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5236.037975][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5236.037977][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5236.037978][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5236.037980][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5236.037981][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5236.037984][    C3]  vfs_write (fs/read_write.c:686)
[ 5236.037986][    C3]  ksys_write (fs/read_write.c:739)
[ 5236.037988][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5236.037990][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5236.037992][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5236.037996][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5236.037999][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5236.038003][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5236.038005][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5236.038007][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5236.038008][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5236.038008][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5236.038009][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5236.038010][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5260.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5260.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5260.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5260.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 5260.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5260.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5260.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5260.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5260.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5260.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5260.385145][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5260.385146][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5260.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5260.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5260.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5260.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5260.385155][    C3] PKRU: 55555554
[ 5260.385156][    C3] Call Trace:
[ 5260.385159][    C3]  <TASK>
[ 5260.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5260.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5260.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5260.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5260.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5260.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5260.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5260.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5260.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5260.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5260.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5260.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5260.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5260.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5260.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5260.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5260.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5260.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5260.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5260.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5260.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5260.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5260.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5260.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5260.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5260.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5260.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5260.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5260.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5260.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5260.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5260.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5260.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5260.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5260.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5260.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5260.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5260.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5260.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5260.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5260.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 5260.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 5260.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5260.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5260.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5260.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5260.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5260.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5260.385282][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5260.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5260.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5260.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5260.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5260.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5260.897070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5260.897249][    C3] rcu: 3-....: (4314486 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1538692
| [ 5260.897516][    C3] rcu: (t=4316205 jiffies g=527745 q=87474 ncpus=4)
| [ 5260.897654][    C3] Tainted: [L]=SOFTLOCKUP
[ 5260.897655][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5260.897656][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5260.897658][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5260.897659][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5260.897661][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5260.897662][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5260.897663][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5260.897663][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5260.897664][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5260.897666][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5260.897668][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5260.897669][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5260.897669][    C3] PKRU: 55555554
[ 5260.897670][    C3] Call Trace:
[ 5260.897671][    C3]  <TASK>
[ 5260.897672][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5260.897674][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5260.897676][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5260.897678][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5260.897680][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5260.897682][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5260.897684][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5260.897687][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5260.897689][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5260.897691][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5260.897693][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5260.897696][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5260.897698][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5260.897700][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5260.897702][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5260.897704][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5260.897706][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5260.897708][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5260.897710][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5260.897712][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5260.897714][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5260.897717][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5260.897719][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5260.897721][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5260.897722][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5260.897724][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5260.897725][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5260.897727][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5260.897729][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5260.897730][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5260.897732][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5260.897734][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5260.897735][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5260.897737][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5260.897739][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5260.897740][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5260.897742][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5260.897744][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5260.897745][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5260.897747][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5260.897749][    C3]  vfs_write (fs/read_write.c:686)
[ 5260.897751][    C3]  ksys_write (fs/read_write.c:739)
[ 5260.897753][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5260.897754][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5260.897757][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5260.897759][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5260.897760][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5260.897762][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5260.897763][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5260.897764][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5260.897765][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5260.897766][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5260.897767][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5260.897767][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5288.385118][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5288.385120][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5288.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5288.385133][    C3] Tainted: [L]=SOFTLOCKUP
[ 5288.385134][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5288.385137][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5288.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5288.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5288.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5288.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5288.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5288.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5288.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5288.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5288.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5288.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5288.385156][    C3] PKRU: 55555554
[ 5288.385157][    C3] Call Trace:
[ 5288.385160][    C3]  <TASK>
[ 5288.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5288.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5288.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5288.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5288.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5288.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5288.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5288.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5288.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5288.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5288.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5288.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5288.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5288.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5288.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5288.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5288.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5288.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5288.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5288.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5288.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5288.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5288.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5288.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5288.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5288.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5288.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5288.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5288.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5288.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5288.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5288.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5288.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5288.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5288.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5288.385253][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5288.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5288.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5288.385258][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5288.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5288.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 5288.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 5288.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5288.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5288.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5288.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5288.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5288.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5288.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5288.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5288.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5288.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5288.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5288.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5316.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5316.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5316.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5316.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 5316.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5316.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5316.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5316.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5316.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5316.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5316.385145][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5316.385146][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5316.385147][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5316.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5316.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5316.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5316.385155][    C3] PKRU: 55555554
[ 5316.385156][    C3] Call Trace:
[ 5316.385160][    C3]  <TASK>
[ 5316.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5316.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5316.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5316.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5316.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5316.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5316.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5316.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5316.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5316.385192][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5316.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5316.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5316.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5316.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5316.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5316.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5316.385210][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5316.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5316.385214][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5316.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5316.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5316.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5316.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5316.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5316.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5316.385233][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5316.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5316.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5316.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5316.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5316.385243][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5316.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5316.385247][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5316.385249][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5316.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5316.385253][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5316.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5316.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5316.385258][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5316.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5316.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 5316.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 5316.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5316.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5316.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5316.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5316.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5316.385286][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5316.385287][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5316.385289][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5316.385290][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5316.385291][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5316.385292][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5316.385292][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5334.341463][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5334.341598][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5334.341725][    C3] NMI backtrace for cpu 3
| [ 5334.341744][    C3] Tainted: [L]=SOFTLOCKUP
[ 5334.341745][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5334.341748][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5334.341757][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5334.341760][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5334.341763][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5334.341765][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5334.341766][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5334.341767][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5334.341767][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5334.341770][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5334.341773][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5334.341774][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5334.341775][    C3] PKRU: 55555554
[ 5334.341776][    C3] Call Trace:
[ 5334.341780][    C3]  <TASK>
[ 5334.341784][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5334.341790][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5334.341792][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5334.341796][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5334.341800][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5334.341802][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5334.341806][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5334.341809][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5334.341812][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5334.341813][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5334.341816][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5334.341818][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5334.341821][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5334.341822][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5334.341825][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5334.341827][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5334.341831][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5334.341833][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5334.341835][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5334.341838][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5334.341840][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5334.341843][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5334.341846][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5334.341848][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5334.341852][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5334.341855][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5334.341856][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5334.341858][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5334.341861][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5334.341863][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5334.341865][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5334.341867][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5334.341869][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5334.341871][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5334.341873][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5334.341875][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5334.341877][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5334.341879][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5334.341880][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5334.341882][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5334.341884][    C3]  vfs_write (fs/read_write.c:686)
[ 5334.341887][    C3]  ksys_write (fs/read_write.c:739)
[ 5334.341889][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5334.341890][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5334.341893][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5334.341896][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5334.341900][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5334.341904][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5334.341905][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5334.341907][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5334.341908][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5334.341909][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5334.341910][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5334.341910][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5338.901073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5338.901353][    C3] rcu: 3-....: (4392457 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1572664
| [ 5338.901547][    C3] rcu: (t=4394209 jiffies g=527745 q=88971 ncpus=4)
| [ 5338.901724][    C3] Tainted: [L]=SOFTLOCKUP
[ 5338.901725][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5338.901727][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5338.901736][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5338.901738][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5338.901742][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5338.901743][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5338.901744][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5338.901745][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5338.901746][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5338.901749][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5338.901752][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5338.901753][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5338.901754][    C3] PKRU: 55555554
[ 5338.901755][    C3] Call Trace:
[ 5338.901756][    C3]  <TASK>
[ 5338.901757][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5338.901762][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5338.901764][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5338.901768][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5338.901771][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5338.901773][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5338.901777][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5338.901779][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5338.901782][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5338.901783][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5338.901785][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5338.901788][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5338.901790][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5338.901792][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5338.901794][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5338.901796][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5338.901801][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5338.901802][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5338.901804][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5338.901807][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5338.901808][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5338.901811][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5338.901815][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5338.901817][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5338.901820][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5338.901823][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5338.901824][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5338.901826][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5338.901829][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5338.901830][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5338.901833][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5338.901834][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5338.901837][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5338.901838][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5338.901840][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5338.901842][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5338.901843][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5338.901845][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5338.901847][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5338.901848][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5338.901851][    C3]  vfs_write (fs/read_write.c:686)
[ 5338.901853][    C3]  ksys_write (fs/read_write.c:739)
[ 5338.901854][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5338.901856][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5338.901859][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5338.901862][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5338.901865][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5338.901868][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5338.901869][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5338.901871][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5338.901872][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5338.901873][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5338.901873][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5338.901874][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5364.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5364.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5364.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5364.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 5364.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5364.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5364.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5364.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5364.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5364.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5364.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5364.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5364.385147][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5364.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5364.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5364.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5364.385156][    C3] PKRU: 55555554
[ 5364.385156][    C3] Call Trace:
[ 5364.385160][    C3]  <TASK>
[ 5364.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5364.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5364.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5364.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5364.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5364.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5364.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5364.385187][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5364.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5364.385192][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5364.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5364.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5364.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5364.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5364.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5364.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5364.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5364.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5364.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5364.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5364.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5364.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5364.385225][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5364.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5364.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5364.385233][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5364.385235][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5364.385237][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5364.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5364.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5364.385243][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5364.385245][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5364.385247][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5364.385249][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5364.385251][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5364.385254][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5364.385255][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5364.385257][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5364.385259][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5364.385260][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5364.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 5364.385265][    C3]  ksys_write (fs/read_write.c:739)
[ 5364.385267][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5364.385269][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5364.385271][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5364.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5364.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5364.385282][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5364.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5364.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5364.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5364.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5364.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5364.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5392.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5392.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5392.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5392.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 5392.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5392.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5392.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5392.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5392.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5392.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5392.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5392.385143][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5392.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5392.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5392.385150][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5392.385151][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5392.385152][    C3] PKRU: 55555554
[ 5392.385152][    C3] Call Trace:
[ 5392.385156][    C3]  <TASK>
[ 5392.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5392.385165][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5392.385167][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5392.385171][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5392.385175][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5392.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5392.385179][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5392.385182][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5392.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5392.385187][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5392.385189][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5392.385192][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5392.385194][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5392.385196][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5392.385198][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5392.385201][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5392.385205][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5392.385207][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5392.385209][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5392.385211][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5392.385213][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5392.385217][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5392.385220][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5392.385222][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5392.385225][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5392.385228][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5392.385230][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5392.385232][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5392.385235][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5392.385236][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5392.385239][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5392.385240][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5392.385242][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5392.385244][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5392.385246][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5392.385249][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5392.385250][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5392.385252][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5392.385254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5392.385255][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5392.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 5392.385260][    C3]  ksys_write (fs/read_write.c:739)
[ 5392.385262][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5392.385264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5392.385266][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5392.385270][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5392.385273][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5392.385277][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5392.385279][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5392.385280][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5392.385281][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5392.385282][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5392.385283][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5392.385284][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5416.904073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5416.904356][    C3] rcu: 3-....: (4470434 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1605197
| [ 5416.904654][    C3] rcu: (t=4472212 jiffies g=527745 q=90108 ncpus=4)
| [ 5416.904877][    C3] Tainted: [L]=SOFTLOCKUP
[ 5416.904878][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5416.904880][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5416.904889][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5416.904891][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5416.904894][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5416.904896][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5416.904897][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5416.904898][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5416.904899][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5416.904901][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5416.904905][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5416.904906][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5416.904907][    C3] PKRU: 55555554
[ 5416.904908][    C3] Call Trace:
[ 5416.904909][    C3]  <TASK>
[ 5416.904910][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5416.904915][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5416.904917][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5416.904921][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5416.904924][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5416.904926][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5416.904930][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5416.904932][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5416.904935][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5416.904936][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5416.904939][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5416.904941][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5416.904943][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5416.904945][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5416.904947][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5416.904949][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5416.904954][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5416.904955][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5416.904958][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5416.904960][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5416.904961][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5416.904964][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5416.904967][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5416.904969][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5416.904973][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5416.904976][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5416.904977][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5416.904979][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5416.904982][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5416.904983][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5416.904986][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5416.904987][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5416.904990][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5416.904991][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5416.904993][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5416.904995][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5416.904996][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5416.904998][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5416.905000][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5416.905001][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5416.905004][    C3]  vfs_write (fs/read_write.c:686)
[ 5416.905006][    C3]  ksys_write (fs/read_write.c:739)
[ 5416.905008][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5416.905009][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5416.905012][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5416.905015][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5416.905018][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5416.905021][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5416.905022][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5416.905024][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5416.905025][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5416.905025][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5416.905026][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5416.905027][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5432.645506][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5432.645678][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5432.645839][    C3] NMI backtrace for cpu 3
| [ 5432.645857][    C3] Tainted: [L]=SOFTLOCKUP
[ 5432.645858][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5432.645861][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5432.645871][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5432.645873][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5432.645877][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5432.645878][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5432.645879][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5432.645881][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5432.645882][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5432.645884][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5432.645888][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5432.645889][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5432.645890][    C3] PKRU: 55555554
[ 5432.645891][    C3] Call Trace:
[ 5432.645895][    C3]  <TASK>
[ 5432.645899][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5432.645904][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5432.645906][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5432.645910][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5432.645915][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5432.645917][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5432.645920][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5432.645923][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5432.645927][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5432.645928][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5432.645931][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5432.645934][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5432.645936][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5432.645938][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5432.645940][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5432.645942][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5432.645946][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5432.645948][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5432.645950][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5432.645956][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5432.645959][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5432.645962][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5432.645966][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5432.645967][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5432.645971][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5432.645974][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5432.645976][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5432.645978][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5432.645981][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5432.645982][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5432.645984][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5432.645986][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5432.645989][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5432.645991][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5432.645992][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5432.645995][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5432.645996][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5432.645998][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5432.646000][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5432.646001][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5432.646004][    C3]  vfs_write (fs/read_write.c:686)
[ 5432.646006][    C3]  ksys_write (fs/read_write.c:739)
[ 5432.646008][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5432.646010][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5432.646012][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5432.646016][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5432.646020][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5432.646023][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5432.646025][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5432.646026][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5432.646028][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5432.646028][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5432.646029][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5432.646030][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5460.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5460.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5460.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5460.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 5460.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5460.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5460.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5460.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5460.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5460.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5460.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5460.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5460.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5460.385152][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5460.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5460.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5460.385157][    C3] PKRU: 55555554
[ 5460.385158][    C3] Call Trace:
[ 5460.385162][    C3]  <TASK>
[ 5460.385166][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5460.385171][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5460.385173][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5460.385177][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5460.385181][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5460.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5460.385185][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5460.385188][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5460.385191][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5460.385193][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5460.385196][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5460.385198][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5460.385201][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5460.385202][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5460.385204][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5460.385207][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5460.385211][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5460.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5460.385215][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5460.385217][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5460.385219][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5460.385223][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5460.385226][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5460.385228][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5460.385232][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5460.385234][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5460.385236][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5460.385238][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5460.385241][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5460.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5460.385245][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5460.385247][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5460.385249][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5460.385251][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5460.385252][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5460.385255][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5460.385257][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5460.385259][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5460.385260][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5460.385262][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5460.385264][    C3]  vfs_write (fs/read_write.c:686)
[ 5460.385267][    C3]  ksys_write (fs/read_write.c:739)
[ 5460.385269][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5460.385270][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5460.385273][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5460.385276][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5460.385280][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5460.385284][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5460.385285][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5460.385287][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5460.385288][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5460.385289][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5460.385289][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5460.385290][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5488.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5488.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5488.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5488.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 5488.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5488.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5488.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5488.385140][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5488.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5488.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5488.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5488.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5488.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5488.385148][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5488.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5488.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5488.385154][    C3] PKRU: 55555554
[ 5488.385155][    C3] Call Trace:
[ 5488.385158][    C3]  <TASK>
[ 5488.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5488.385167][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5488.385169][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5488.385173][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5488.385177][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5488.385179][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5488.385181][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5488.385184][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5488.385187][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5488.385189][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5488.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5488.385194][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5488.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5488.385198][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5488.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5488.385203][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5488.385207][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5488.385209][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5488.385211][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5488.385213][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5488.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5488.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5488.385222][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5488.385224][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5488.385228][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5488.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5488.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5488.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5488.385237][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5488.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5488.385241][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5488.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5488.385245][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5488.385247][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5488.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5488.385251][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5488.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5488.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5488.385256][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5488.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5488.385260][    C3]  vfs_write (fs/read_write.c:686)
[ 5488.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 5488.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5488.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5488.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5488.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5488.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5488.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5488.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5488.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5488.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5488.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5488.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5488.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5494.908073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5494.908341][    C3] rcu: 3-....: (4548398 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1638288
| [ 5494.908625][    C3] rcu: (t=4550216 jiffies g=527745 q=91605 ncpus=4)
| [ 5494.908767][    C3] Tainted: [L]=SOFTLOCKUP
[ 5494.908768][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5494.908770][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5494.908779][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5494.908781][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5494.908785][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5494.908786][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5494.908787][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5494.908788][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5494.908789][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5494.908792][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5494.908795][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5494.908796][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5494.908797][    C3] PKRU: 55555554
[ 5494.908798][    C3] Call Trace:
[ 5494.908799][    C3]  <TASK>
[ 5494.908800][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5494.908805][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5494.908807][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5494.908811][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5494.908814][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5494.908816][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5494.908819][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5494.908821][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5494.908824][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5494.908826][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5494.908828][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5494.908831][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5494.908833][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5494.908835][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5494.908837][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5494.908839][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5494.908844][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5494.908845][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5494.908847][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5494.908850][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5494.908851][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5494.908854][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5494.908858][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5494.908860][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5494.908863][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5494.908866][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5494.908868][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5494.908870][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5494.908872][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5494.908874][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5494.908876][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5494.908878][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5494.908880][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5494.908882][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5494.908883][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5494.908885][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5494.908887][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5494.908889][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5494.908890][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5494.908892][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5494.908894][    C3]  vfs_write (fs/read_write.c:686)
[ 5494.908896][    C3]  ksys_write (fs/read_write.c:739)
[ 5494.908898][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5494.908900][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5494.908902][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5494.908905][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5494.908907][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5494.908910][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5494.908912][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5494.908914][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5494.908915][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5494.908916][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5494.908916][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5494.908917][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5520.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5520.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5520.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5520.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 5520.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5520.385134][    C3] RIP: 0010:__kasan_check_read (mm/kasan/shadow.c:30)
[ 5520.385140][    C3] Code: 8b 05 f4 df b4 03 49 8b 40 20 48 39 c7 72 0f 48 05 00 80 00 00 48 39 c7 0f 82 dc 0e 22 ff 90 0f 0b 90 c3 0f 1f 80 00 00 00 00 <f3> 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 8f f5 ff ff 0f 1f 40 00 66
All code
========
   0:	8b 05 f4 df b4 03    	mov    0x3b4dff4(%rip),%eax        # 0x3b4dffa
   6:	49 8b 40 20          	mov    0x20(%r8),%rax
   a:	48 39 c7             	cmp    %rax,%rdi
   d:	72 0f                	jb     0x1e
   f:	48 05 00 80 00 00    	add    $0x8000,%rax
  15:	48 39 c7             	cmp    %rax,%rdi
  18:	0f 82 dc 0e 22 ff    	jb     0xffffffffff220efa
  1e:	90                   	nop
  1f:	0f 0b                	ud2
  21:	90                   	nop
  22:	c3                   	ret
  23:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  2a:*	f3 0f 1e fa          	endbr64		<-- trapping instruction
  2e:	48 8b 0c 24          	mov    (%rsp),%rcx
  32:	89 f6                	mov    %esi,%esi
  34:	31 d2                	xor    %edx,%edx
  36:	e9 8f f5 ff ff       	jmp    0xfffffffffffff5ca
  3b:	0f 1f 40 00          	nopl   0x0(%rax)
  3f:	66                   	data16

Code starting with the faulting instruction
===========================================
   0:	f3 0f 1e fa          	endbr64
   4:	48 8b 0c 24          	mov    (%rsp),%rcx
   8:	89 f6                	mov    %esi,%esi
   a:	31 d2                	xor    %edx,%edx
   c:	e9 8f f5 ff ff       	jmp    0xfffffffffffff5a0
  11:	0f 1f 40 00          	nopl   0x0(%rax)
  15:	66                   	data16
[ 5520.385142][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[ 5520.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5520.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5520.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5520.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5520.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5520.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5520.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5520.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5520.385157][    C3] PKRU: 55555554
[ 5520.385158][    C3] Call Trace:
[ 5520.385161][    C3]  <TASK>
[ 5520.385163][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 5520.385169][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5520.385173][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5520.385175][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5520.385179][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5520.385183][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5520.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5520.385188][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5520.385190][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5520.385193][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5520.385195][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5520.385197][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5520.385200][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5520.385202][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5520.385204][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5520.385206][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5520.385209][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5520.385213][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5520.385215][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5520.385217][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5520.385219][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5520.385222][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5520.385225][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5520.385228][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5520.385230][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5520.385233][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5520.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5520.385237][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5520.385239][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5520.385242][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5520.385244][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5520.385246][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5520.385248][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5520.385250][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5520.385252][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5520.385254][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5520.385256][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5520.385258][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5520.385260][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5520.385261][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5520.385263][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5520.385265][    C3]  vfs_write (fs/read_write.c:686)
[ 5520.385268][    C3]  ksys_write (fs/read_write.c:739)
[ 5520.385270][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5520.385271][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5520.385274][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5520.385277][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5520.385281][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5520.385286][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5520.385287][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5520.385289][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5520.385290][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5520.385291][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5520.385292][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5520.385293][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5530.949556][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5530.949732][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5530.949880][    C3] NMI backtrace for cpu 3
| [ 5530.949898][    C3] Tainted: [L]=SOFTLOCKUP
[ 5530.949899][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5530.949902][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5530.949911][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5530.949914][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5530.949917][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5530.949919][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5530.949920][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5530.949920][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5530.949921][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5530.949924][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5530.949927][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5530.949928][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5530.949929][    C3] PKRU: 55555554
[ 5530.949930][    C3] Call Trace:
[ 5530.949934][    C3]  <TASK>
[ 5530.949938][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5530.949943][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5530.949945][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5530.949949][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5530.949953][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5530.949955][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5530.949958][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5530.949961][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5530.949964][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5530.949966][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5530.949968][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5530.949971][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5530.949973][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5530.949975][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5530.949977][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5530.949979][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5530.949984][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5530.949985][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5530.949988][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5530.949990][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5530.949992][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5530.949995][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5530.949998][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5530.950000][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5530.950004][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5530.950007][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5530.950009][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5530.950011][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5530.950014][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5530.950015][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5530.950018][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5530.950019][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5530.950022][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5530.950024][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5530.950025][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5530.950028][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5530.950029][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5530.950031][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5530.950033][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5530.950034][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5530.950037][    C3]  vfs_write (fs/read_write.c:686)
[ 5530.950039][    C3]  ksys_write (fs/read_write.c:739)
[ 5530.950041][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5530.950043][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5530.950045][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5530.950049][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5530.950052][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5530.950056][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5530.950057][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5530.950059][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5530.950060][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5530.950061][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5530.950062][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5530.950063][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5556.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5556.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5556.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5556.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 5556.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5556.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5556.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5556.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5556.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5556.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5556.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5556.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5556.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5556.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5556.385152][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5556.385153][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5556.385154][    C3] PKRU: 55555554
[ 5556.385155][    C3] Call Trace:
[ 5556.385159][    C3]  <TASK>
[ 5556.385162][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5556.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5556.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5556.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5556.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5556.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5556.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5556.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5556.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5556.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5556.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5556.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5556.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5556.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5556.385201][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5556.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5556.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5556.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5556.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5556.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5556.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5556.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5556.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5556.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5556.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5556.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5556.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5556.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5556.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5556.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5556.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5556.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5556.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5556.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5556.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5556.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5556.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5556.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5556.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5556.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5556.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 5556.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 5556.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5556.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5556.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5556.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5556.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5556.385281][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5556.385282][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5556.385284][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5556.385285][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5556.385286][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5556.385286][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5556.385287][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5572.912073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5572.912343][    C3] rcu: 3-....: (4626369 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1670421
| [ 5572.912567][    C3] rcu: (t=4628220 jiffies g=527745 q=93105 ncpus=4)
| [ 5572.912760][    C3] Tainted: [L]=SOFTLOCKUP
[ 5572.912762][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5572.912764][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5572.912773][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5572.912775][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5572.912778][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5572.912780][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5572.912781][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5572.912782][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5572.912782][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5572.912785][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5572.912788][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5572.912789][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5572.912790][    C3] PKRU: 55555554
[ 5572.912791][    C3] Call Trace:
[ 5572.912792][    C3]  <TASK>
[ 5572.912793][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5572.912798][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5572.912800][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5572.912804][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5572.912807][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5572.912809][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5572.912812][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5572.912815][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5572.912817][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5572.912819][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5572.912822][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5572.912824][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5572.912826][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5572.912828][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5572.912830][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5572.912833][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5572.912837][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5572.912839][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5572.912841][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5572.912843][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5572.912845][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5572.912848][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5572.912851][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5572.912853][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5572.912856][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5572.912859][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5572.912860][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5572.912863][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5572.912865][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5572.912866][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5572.912869][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5572.912870][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5572.912873][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5572.912875][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5572.912876][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5572.912878][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5572.912880][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5572.912881][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5572.912883][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5572.912885][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5572.912887][    C3]  vfs_write (fs/read_write.c:686)
[ 5572.912889][    C3]  ksys_write (fs/read_write.c:739)
[ 5572.912891][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5572.912893][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5572.912895][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5572.912899][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5572.912901][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5572.912904][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5572.912909][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5572.912911][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5572.912912][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5572.912913][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5572.912914][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5572.912914][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5600.385120][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5600.385122][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5600.385125][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5600.385135][    C3] Tainted: [L]=SOFTLOCKUP
[ 5600.385136][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5600.385138][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5600.385142][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5600.385144][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5600.385147][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5600.385148][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5600.385149][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5600.385150][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5600.385151][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5600.385153][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5600.385157][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5600.385158][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5600.385159][    C3] PKRU: 55555554
[ 5600.385159][    C3] Call Trace:
[ 5600.385163][    C3]  <TASK>
[ 5600.385167][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5600.385173][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5600.385175][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5600.385179][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5600.385183][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5600.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5600.385187][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5600.385190][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5600.385193][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5600.385195][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5600.385197][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5600.385200][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5600.385202][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5600.385204][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5600.385206][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5600.385208][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5600.385212][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5600.385214][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5600.385216][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5600.385219][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5600.385221][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5600.385224][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5600.385227][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5600.385229][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5600.385233][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5600.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5600.385237][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5600.385239][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5600.385242][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5600.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5600.385246][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5600.385247][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5600.385250][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5600.385252][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5600.385253][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5600.385256][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5600.385257][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5600.385259][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5600.385261][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5600.385262][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5600.385265][    C3]  vfs_write (fs/read_write.c:686)
[ 5600.385267][    C3]  ksys_write (fs/read_write.c:739)
[ 5600.385269][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5600.385271][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5600.385273][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5600.385277][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5600.385280][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5600.385285][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5600.385286][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5600.385288][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5600.385289][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5600.385290][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5600.385291][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5600.385291][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5628.385106][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5628.385108][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5628.385111][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5628.385119][    C3] Tainted: [L]=SOFTLOCKUP
[ 5628.385121][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5628.385123][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5628.385126][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5628.385128][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5628.385130][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5628.385131][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5628.385132][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5628.385133][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5628.385134][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5628.385136][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5628.385140][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5628.385141][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5628.385142][    C3] PKRU: 55555554
[ 5628.385143][    C3] Call Trace:
[ 5628.385146][    C3]  <TASK>
[ 5628.385150][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5628.385153][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5628.385155][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5628.385159][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5628.385162][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5628.385164][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5628.385166][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5628.385169][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5628.385172][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5628.385174][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5628.385176][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5628.385178][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5628.385181][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5628.385183][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5628.385185][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5628.385187][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5628.385190][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5628.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5628.385194][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5628.385196][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5628.385198][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5628.385202][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5628.385204][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5628.385206][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5628.385209][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5628.385211][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5628.385212][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5628.385215][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5628.385217][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5628.385219][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5628.385221][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5628.385223][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5628.385225][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5628.385227][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5628.385228][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5628.385231][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5628.385232][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5628.385234][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5628.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5628.385237][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5628.385239][    C3]  vfs_write (fs/read_write.c:686)
[ 5628.385242][    C3]  ksys_write (fs/read_write.c:739)
[ 5628.385244][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5628.385246][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5628.385248][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5628.385251][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5628.385255][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5628.385258][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5628.385259][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5628.385261][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5628.385262][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5628.385262][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5628.385263][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5628.385264][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5629.252472][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5629.252647][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5629.252831][    C3] NMI backtrace for cpu 3
| [ 5629.252837][    C3] Tainted: [L]=SOFTLOCKUP
[ 5629.252838][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5629.252839][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5629.252841][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5629.252843][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5629.252844][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5629.252845][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5629.252846][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5629.252847][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5629.252848][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5629.252849][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5629.252852][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5629.252853][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5629.252854][    C3] PKRU: 55555554
[ 5629.252854][    C3] Call Trace:
[ 5629.252855][    C3]  <TASK>
[ 5629.252856][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5629.252858][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5629.252860][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5629.252863][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5629.252865][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5629.252866][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5629.252869][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5629.252871][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5629.252874][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5629.252876][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5629.252878][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5629.252880][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5629.252882][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5629.252884][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5629.252886][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5629.252888][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5629.252891][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5629.252892][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5629.252895][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5629.252897][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5629.252898][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5629.252901][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5629.252903][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5629.252905][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5629.252907][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5629.252908][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5629.252910][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5629.252912][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5629.252914][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5629.252915][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5629.252918][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5629.252919][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5629.252921][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5629.252922][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5629.252924][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5629.252926][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5629.252927][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5629.252929][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5629.252931][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5629.252932][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5629.252935][    C3]  vfs_write (fs/read_write.c:686)
[ 5629.252937][    C3]  ksys_write (fs/read_write.c:739)
[ 5629.252938][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5629.252940][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5629.252942][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5629.252945][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5629.252946][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5629.252948][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5629.252949][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5629.252950][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5629.252951][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5629.252951][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5629.252952][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5629.252953][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5650.916074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5650.916409][    C3] rcu: 3-....: (4704341 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1701487
| [ 5650.916887][    C3] rcu: (t=4706224 jiffies g=527745 q=94602 ncpus=4)
| [ 5650.917158][    C3] Tainted: [L]=SOFTLOCKUP
[ 5650.917161][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5650.917164][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5650.917175][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5650.917177][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5650.917181][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5650.917184][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5650.917185][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5650.917186][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5650.917188][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5650.917191][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5650.917194][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5650.917196][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5650.917198][    C3] PKRU: 55555554
[ 5650.917199][    C3] Call Trace:
[ 5650.917201][    C3]  <TASK>
[ 5650.917203][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5650.917208][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5650.917212][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5650.917217][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5650.917221][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5650.917223][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5650.917228][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5650.917231][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5650.917235][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5650.917237][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5650.917241][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5650.917244][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5650.917247][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5650.917250][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5650.917253][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5650.917255][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5650.917259][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5650.917261][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5650.917263][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5650.917265][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5650.917267][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5650.917270][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5650.917273][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5650.917275][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5650.917279][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5650.917281][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5650.917283][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5650.917285][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5650.917288][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5650.917289][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5650.917292][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5650.917293][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5650.917296][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5650.917297][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5650.917299][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5650.917301][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5650.917302][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5650.917304][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5650.917305][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5650.917307][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5650.917309][    C3]  vfs_write (fs/read_write.c:686)
[ 5650.917311][    C3]  ksys_write (fs/read_write.c:739)
[ 5650.917313][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5650.917315][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5650.917317][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5650.917321][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5650.917323][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5650.917326][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5650.917328][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5650.917329][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5650.917330][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5650.917331][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5650.917332][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5650.917333][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5676.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5676.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5676.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5676.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 5676.385129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5676.385131][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5676.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5676.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5676.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5676.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5676.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5676.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5676.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5676.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5676.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5676.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5676.385151][    C3] PKRU: 55555554
[ 5676.385152][    C3] Call Trace:
[ 5676.385155][    C3]  <TASK>
[ 5676.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5676.385163][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5676.385166][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5676.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5676.385173][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5676.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5676.385177][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5676.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5676.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5676.385185][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5676.385187][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5676.385190][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5676.385192][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5676.385194][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5676.385196][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5676.385198][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5676.385202][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5676.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5676.385206][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5676.385208][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5676.385211][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5676.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5676.385217][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5676.385219][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5676.385223][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5676.385225][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5676.385227][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5676.385229][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5676.385232][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5676.385233][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5676.385236][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5676.385237][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5676.385240][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5676.385242][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5676.385243][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5676.385245][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5676.385247][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5676.385249][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5676.385250][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5676.385252][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5676.385254][    C3]  vfs_write (fs/read_write.c:686)
[ 5676.385257][    C3]  ksys_write (fs/read_write.c:739)
[ 5676.385259][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5676.385260][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5676.385263][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5676.385266][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5676.385270][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5676.385274][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5676.385275][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5676.385277][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5676.385278][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5676.385279][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5676.385279][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5676.385280][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5704.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5704.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5704.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5704.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 5704.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5704.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5704.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5704.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5704.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5704.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5704.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5704.385143][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5704.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5704.385146][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5704.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5704.385151][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5704.385151][    C3] PKRU: 55555554
[ 5704.385152][    C3] Call Trace:
[ 5704.385156][    C3]  <TASK>
[ 5704.385160][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5704.385166][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5704.385168][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5704.385172][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5704.385176][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5704.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5704.385180][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5704.385183][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5704.385186][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5704.385187][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5704.385190][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5704.385192][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5704.385195][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5704.385197][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5704.385199][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5704.385201][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5704.385205][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5704.385207][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5704.385209][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5704.385211][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5704.385213][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5704.385216][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5704.385220][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5704.385222][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5704.385225][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5704.385228][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5704.385229][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5704.385231][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5704.385234][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5704.385236][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5704.385238][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5704.385240][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5704.385243][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5704.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5704.385246][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5704.385249][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5704.385250][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5704.385252][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5704.385254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5704.385255][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5704.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 5704.385260][    C3]  ksys_write (fs/read_write.c:739)
[ 5704.385262][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5704.385264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5704.385266][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5704.385270][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5704.385273][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5704.385277][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5704.385278][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5704.385280][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5704.385281][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5704.385282][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5704.385282][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5704.385283][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5727.557524][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5727.557726][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5727.557947][    C3] NMI backtrace for cpu 3
| [ 5727.557960][    C3] Tainted: [L]=SOFTLOCKUP
[ 5727.557962][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5727.557964][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5727.557974][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5727.557977][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5727.557981][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5727.557983][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5727.557985][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5727.557986][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5727.557988][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5727.557991][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5727.557995][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5727.557997][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5727.557999][    C3] PKRU: 55555554
[ 5727.558000][    C3] Call Trace:
[ 5727.558002][    C3]  <TASK>
[ 5727.558007][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5727.558012][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5727.558016][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5727.558021][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5727.558026][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5727.558029][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5727.558033][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5727.558037][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5727.558042][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5727.558045][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5727.558048][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5727.558052][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5727.558055][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5727.558058][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5727.558061][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5727.558064][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5727.558072][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5727.558075][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5727.558078][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5727.558082][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5727.558085][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5727.558090][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5727.558094][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5727.558096][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5727.558101][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5727.558104][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5727.558107][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5727.558110][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5727.558114][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5727.558116][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5727.558120][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5727.558122][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5727.558126][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5727.558129][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5727.558131][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5727.558135][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5727.558137][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5727.558140][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5727.558142][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5727.558144][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5727.558148][    C3]  vfs_write (fs/read_write.c:686)
[ 5727.558152][    C3]  ksys_write (fs/read_write.c:739)
[ 5727.558155][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5727.558157][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5727.558161][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5727.558166][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5727.558170][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5727.558175][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5727.558177][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5727.558179][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5727.558181][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5727.558182][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5727.558183][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5727.558184][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5728.920072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5728.920348][    C3] rcu: 3-....: (4782276 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1733376
| [ 5728.920761][    C3] rcu: (t=4784228 jiffies g=527745 q=96099 ncpus=4)
| [ 5728.921117][    C3] Tainted: [L]=SOFTLOCKUP
[ 5728.921118][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5728.921120][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5728.921124][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5728.921126][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5728.921129][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5728.921131][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5728.921133][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5728.921134][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5728.921136][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5728.921138][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5728.921141][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5728.921142][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5728.921143][    C3] PKRU: 55555554
[ 5728.921144][    C3] Call Trace:
[ 5728.921145][    C3]  <TASK>
[ 5728.921146][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5728.921148][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5728.921151][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5728.921153][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5728.921155][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5728.921157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5728.921159][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5728.921161][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5728.921164][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5728.921166][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5728.921168][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5728.921171][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5728.921173][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5728.921174][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5728.921177][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5728.921179][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5728.921181][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5728.921183][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5728.921185][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5728.921187][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5728.921189][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5728.921192][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5728.921194][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5728.921195][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5728.921197][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5728.921199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5728.921200][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5728.921202][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5728.921204][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5728.921205][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5728.921207][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5728.921209][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5728.921211][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5728.921213][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5728.921214][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5728.921216][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5728.921217][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5728.921219][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5728.921221][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5728.921222][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5728.921225][    C3]  vfs_write (fs/read_write.c:686)
[ 5728.921227][    C3]  ksys_write (fs/read_write.c:739)
[ 5728.921228][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5728.921230][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5728.921232][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5728.921235][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5728.921236][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5728.921238][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5728.921240][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5728.921241][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5728.921242][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5728.921243][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5728.921244][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5728.921244][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5756.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5756.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5756.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5756.385133][    C3] Tainted: [L]=SOFTLOCKUP
[ 5756.385135][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5756.385137][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5756.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5756.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5756.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5756.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5756.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5756.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5756.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5756.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5756.385154][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5756.385155][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5756.385157][    C3] PKRU: 55555554
[ 5756.385158][    C3] Call Trace:
[ 5756.385160][    C3]  <TASK>
[ 5756.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5756.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5756.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5756.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5756.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5756.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5756.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5756.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5756.385188][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5756.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5756.385192][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5756.385195][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5756.385197][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5756.385199][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5756.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5756.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5756.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5756.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5756.385212][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5756.385214][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5756.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5756.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5756.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5756.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5756.385228][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5756.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5756.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5756.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5756.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5756.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5756.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5756.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5756.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5756.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5756.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5756.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5756.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5756.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5756.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5756.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5756.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 5756.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 5756.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5756.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5756.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5756.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5756.385276][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5756.385280][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5756.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5756.385283][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5756.385284][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5756.385285][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5756.385285][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5756.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5784.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5784.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5784.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5784.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 5784.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5784.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5784.385135][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5784.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5784.385139][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5784.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5784.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5784.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5784.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5784.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5784.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5784.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5784.385151][    C3] PKRU: 55555554
[ 5784.385152][    C3] Call Trace:
[ 5784.385155][    C3]  <TASK>
[ 5784.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5784.385163][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5784.385166][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5784.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5784.385174][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5784.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5784.385178][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5784.385181][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5784.385184][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5784.385186][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5784.385188][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5784.385191][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5784.385193][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5784.385195][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5784.385197][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5784.385199][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5784.385204][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5784.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5784.385208][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5784.385210][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5784.385212][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5784.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5784.385219][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5784.385221][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5784.385224][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5784.385227][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5784.385229][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5784.385231][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5784.385234][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5784.385235][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5784.385237][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5784.385239][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5784.385241][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5784.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5784.385245][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5784.385248][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5784.385249][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5784.385251][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5784.385253][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5784.385254][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5784.385257][    C3]  vfs_write (fs/read_write.c:686)
[ 5784.385259][    C3]  ksys_write (fs/read_write.c:739)
[ 5784.385261][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5784.385263][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5784.385265][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5784.385269][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5784.385273][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5784.385276][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5784.385277][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5784.385279][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5784.385280][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5784.385280][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5784.385281][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5784.385282][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5806.925074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5806.925343][    C3] rcu: 3-....: (4860248 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1765200
| [ 5806.925574][    C3] rcu: (t=4862233 jiffies g=527745 q=97242 ncpus=4)
| [ 5806.925775][    C3] Tainted: [L]=SOFTLOCKUP
[ 5806.925777][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5806.925779][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5806.925788][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5806.925790][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5806.925793][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5806.925795][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5806.925796][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5806.925797][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5806.925798][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5806.925801][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5806.925804][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5806.925805][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5806.925806][    C3] PKRU: 55555554
[ 5806.925807][    C3] Call Trace:
[ 5806.925808][    C3]  <TASK>
[ 5806.925809][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5806.925814][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5806.925816][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5806.925820][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5806.925823][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5806.925825][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5806.925828][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5806.925831][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5806.925834][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5806.925835][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5806.925838][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5806.925840][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5806.925843][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5806.925844][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5806.925846][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5806.925849][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5806.925853][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5806.925855][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5806.925857][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5806.925860][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5806.925861][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5806.925864][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5806.925867][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5806.925869][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5806.925873][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5806.925876][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5806.925877][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5806.925879][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5806.925882][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5806.925883][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5806.925886][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5806.925888][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5806.925890][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5806.925892][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5806.925893][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5806.925895][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5806.925897][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5806.925899][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5806.925900][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5806.925902][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5806.925904][    C3]  vfs_write (fs/read_write.c:686)
[ 5806.925906][    C3]  ksys_write (fs/read_write.c:739)
[ 5806.925908][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5806.925910][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5806.925913][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5806.925916][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5806.925918][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5806.925921][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5806.925923][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5806.925924][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5806.925925][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5806.925926][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5806.925927][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5806.925928][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5825.861509][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5825.861726][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5825.861872][    C3] NMI backtrace for cpu 3
| [ 5825.861883][    C3] Tainted: [L]=SOFTLOCKUP
[ 5825.861884][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5825.861886][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5825.861895][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5825.861897][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5825.861900][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5825.861902][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5825.861903][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5825.861904][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5825.861904][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5825.861907][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5825.861910][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5825.861911][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5825.861912][    C3] PKRU: 55555554
[ 5825.861913][    C3] Call Trace:
[ 5825.861915][    C3]  <TASK>
[ 5825.861919][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5825.861924][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5825.861926][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5825.861930][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5825.861934][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5825.861936][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5825.861939][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5825.861942][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5825.861945][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5825.861947][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5825.861949][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5825.861952][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5825.861955][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5825.861957][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5825.861959][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5825.861961][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5825.861965][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5825.861967][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5825.861969][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5825.861972][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5825.861974][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5825.861977][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5825.861980][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5825.861982][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5825.861985][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5825.861988][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5825.861990][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5825.861992][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5825.861995][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5825.861997][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5825.861999][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5825.862001][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5825.862003][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5825.862005][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5825.862007][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5825.862009][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5825.862011][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5825.862013][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5825.862014][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5825.862016][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5825.862018][    C3]  vfs_write (fs/read_write.c:686)
[ 5825.862020][    C3]  ksys_write (fs/read_write.c:739)
[ 5825.862022][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5825.862024][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5825.862027][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5825.862030][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5825.862034][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5825.862037][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5825.862039][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5825.862041][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5825.862042][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5825.862043][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5825.862043][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5825.862044][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5852.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5852.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5852.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5852.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 5852.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5852.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5852.385138][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5852.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5852.385142][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5852.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5852.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5852.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5852.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5852.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5852.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5852.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5852.385155][    C3] PKRU: 55555554
[ 5852.385156][    C3] Call Trace:
[ 5852.385159][    C3]  <TASK>
[ 5852.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5852.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5852.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5852.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5852.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5852.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5852.385182][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5852.385185][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5852.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5852.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5852.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5852.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5852.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5852.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5852.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5852.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5852.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5852.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5852.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5852.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5852.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5852.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5852.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5852.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5852.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5852.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5852.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5852.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5852.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5852.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5852.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5852.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5852.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5852.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5852.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5852.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5852.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5852.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5852.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5852.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5852.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 5852.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 5852.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5852.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5852.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5852.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5852.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5852.385282][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5852.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5852.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5852.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5852.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5852.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5852.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5880.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5880.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5880.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5880.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 5880.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5880.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5880.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5880.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5880.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5880.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5880.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5880.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5880.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5880.385119][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5880.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5880.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5880.385124][    C3] PKRU: 55555554
[ 5880.385125][    C3] Call Trace:
[ 5880.385127][    C3]  <TASK>
[ 5880.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5880.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5880.385135][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5880.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5880.385140][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5880.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5880.385144][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5880.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5880.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5880.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5880.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5880.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5880.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5880.385160][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5880.385162][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5880.385164][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5880.385167][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5880.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5880.385171][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5880.385173][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5880.385174][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5880.385178][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5880.385180][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5880.385182][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5880.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5880.385185][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5880.385186][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5880.385188][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5880.385190][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5880.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5880.385194][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5880.385195][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5880.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5880.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5880.385201][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5880.385203][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5880.385204][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5880.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5880.385208][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5880.385209][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5880.385212][    C3]  vfs_write (fs/read_write.c:686)
[ 5880.385214][    C3]  ksys_write (fs/read_write.c:739)
[ 5880.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5880.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5880.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5880.385222][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5880.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5880.385227][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5880.385228][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5880.385229][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5880.385230][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5880.385231][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5880.385231][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5880.385232][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5884.929071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5884.929284][    C3] rcu: 3-....: (4938220 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1796948
| [ 5884.929567][    C3] rcu: (t=4940237 jiffies g=527745 q=98739 ncpus=4)
| [ 5884.929709][    C3] Tainted: [L]=SOFTLOCKUP
[ 5884.929710][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5884.929710][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5884.929713][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5884.929714][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5884.929715][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5884.929716][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5884.929717][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5884.929717][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5884.929718][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5884.929720][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5884.929723][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5884.929723][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5884.929724][    C3] PKRU: 55555554
[ 5884.929725][    C3] Call Trace:
[ 5884.929726][    C3]  <TASK>
[ 5884.929726][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5884.929728][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5884.929731][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5884.929733][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5884.929735][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5884.929737][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5884.929739][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5884.929741][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5884.929744][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5884.929746][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5884.929748][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5884.929751][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5884.929753][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5884.929755][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5884.929757][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5884.929759][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5884.929761][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5884.929763][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5884.929765][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5884.929767][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5884.929769][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5884.929772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5884.929774][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5884.929776][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5884.929777][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5884.929779][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5884.929780][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5884.929782][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5884.929784][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5884.929785][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5884.929788][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5884.929789][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5884.929791][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5884.929792][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5884.929794][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5884.929796][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5884.929797][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5884.929799][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5884.929800][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5884.929802][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5884.929805][    C3]  vfs_write (fs/read_write.c:686)
[ 5884.929806][    C3]  ksys_write (fs/read_write.c:739)
[ 5884.929808][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5884.929810][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5884.929812][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5884.929814][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5884.929816][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5884.929817][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5884.929818][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5884.929819][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5884.929820][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5884.929821][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5884.929822][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5884.929822][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5912.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5912.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5912.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5912.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 5912.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5912.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5912.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5912.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5912.385107][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5912.385108][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5912.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5912.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5912.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5912.385112][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5912.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5912.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5912.385117][    C3] PKRU: 55555554
[ 5912.385117][    C3] Call Trace:
[ 5912.385119][    C3]  <TASK>
[ 5912.385121][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5912.385123][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5912.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5912.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5912.385130][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5912.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5912.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5912.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5912.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5912.385141][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5912.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5912.385146][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5912.385148][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5912.385150][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5912.385152][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5912.385154][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5912.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5912.385158][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5912.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5912.385162][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5912.385164][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5912.385167][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5912.385169][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5912.385170][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5912.385176][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5912.385178][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5912.385179][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5912.385181][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5912.385183][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5912.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5912.385186][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5912.385188][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5912.385189][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5912.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5912.385193][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5912.385195][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5912.385196][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5912.385198][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5912.385200][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5912.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5912.385204][    C3]  vfs_write (fs/read_write.c:686)
[ 5912.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 5912.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5912.385209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5912.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5912.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5912.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5912.385218][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5912.385219][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5912.385220][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5912.385221][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5912.385222][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5912.385222][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5912.385223][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5924.164513][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 5924.164724][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 5924.164897][    C3] NMI backtrace for cpu 3
| [ 5924.164904][    C3] Tainted: [L]=SOFTLOCKUP
[ 5924.164905][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5924.164906][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5924.164909][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5924.164910][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5924.164912][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5924.164913][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5924.164914][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5924.164915][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5924.164915][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5924.164917][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5924.164920][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5924.164921][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5924.164922][    C3] PKRU: 55555554
[ 5924.164922][    C3] Call Trace:
[ 5924.164924][    C3]  <TASK>
[ 5924.164926][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5924.164928][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5924.164930][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5924.164933][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5924.164935][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5924.164937][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5924.164939][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5924.164941][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5924.164944][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5924.164946][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5924.164948][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5924.164951][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5924.164953][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5924.164955][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5924.164957][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5924.164959][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5924.164961][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5924.164963][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5924.164965][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5924.164967][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5924.164969][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5924.164972][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5924.164974][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5924.164976][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5924.164978][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5924.164979][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5924.164980][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5924.164982][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5924.164984][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5924.164985][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5924.164988][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5924.164989][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5924.164991][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5924.164993][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5924.164994][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5924.164996][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5924.164997][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5924.164999][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5924.165001][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5924.165002][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5924.165005][    C3]  vfs_write (fs/read_write.c:686)
[ 5924.165007][    C3]  ksys_write (fs/read_write.c:739)
[ 5924.165008][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5924.165010][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5924.165012][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5924.165015][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5924.165017][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5924.165019][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5924.165020][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5924.165021][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5924.165022][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5924.165023][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5924.165024][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5924.165024][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5948.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5948.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5948.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5948.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 5948.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5948.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5948.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5948.385113][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5948.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5948.385115][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5948.385116][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5948.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5948.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5948.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5948.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5948.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5948.385124][    C3] PKRU: 55555554
[ 5948.385125][    C3] Call Trace:
[ 5948.385127][    C3]  <TASK>
[ 5948.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5948.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5948.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5948.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5948.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5948.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5948.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5948.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5948.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5948.385149][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5948.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5948.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5948.385156][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5948.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5948.385160][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5948.385162][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5948.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5948.385166][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5948.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5948.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5948.385172][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5948.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5948.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5948.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5948.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5948.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5948.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5948.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5948.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5948.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5948.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5948.385193][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5948.385194][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5948.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5948.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5948.385199][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5948.385201][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5948.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5948.385204][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5948.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5948.385208][    C3]  vfs_write (fs/read_write.c:686)
[ 5948.385210][    C3]  ksys_write (fs/read_write.c:739)
[ 5948.385212][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5948.385214][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5948.385216][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5948.385218][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5948.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5948.385222][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5948.385223][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5948.385224][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5948.385225][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5948.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5948.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5948.385227][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5962.933072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 5962.933345][    C3] rcu: 3-....: (5016192 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1828011
| [ 5962.933575][    C3] rcu: (t=5018241 jiffies g=527745 q=100236 ncpus=4)
| [ 5962.933712][    C3] Tainted: [L]=SOFTLOCKUP
[ 5962.933713][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5962.933714][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5962.933717][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5962.933718][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5962.933720][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5962.933721][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5962.933721][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5962.933722][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5962.933723][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5962.933725][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5962.933728][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5962.933729][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5962.933729][    C3] PKRU: 55555554
[ 5962.933730][    C3] Call Trace:
[ 5962.933731][    C3]  <TASK>
[ 5962.933732][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5962.933734][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5962.933736][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5962.933739][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5962.933741][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5962.933742][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5962.933745][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5962.933747][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5962.933750][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5962.933752][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5962.933754][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5962.933756][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5962.933759][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5962.933760][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5962.933762][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5962.933764][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5962.933767][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5962.933769][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5962.933771][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5962.933773][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5962.933775][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5962.933778][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5962.933780][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5962.933782][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5962.933783][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5962.933785][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5962.933786][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5962.933788][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5962.933790][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5962.933791][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5962.933794][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5962.933795][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5962.933797][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5962.933799][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5962.933800][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5962.933802][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5962.933803][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5962.933805][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5962.933807][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5962.933808][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5962.933811][    C3]  vfs_write (fs/read_write.c:686)
[ 5962.933813][    C3]  ksys_write (fs/read_write.c:739)
[ 5962.933814][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5962.933816][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5962.933818][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5962.933821][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5962.933822][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5962.933823][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5962.933824][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5962.933826][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5962.933826][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5962.933827][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5962.933828][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5962.933829][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 5988.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 5988.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 5988.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 5988.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 5988.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5988.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 5988.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 5988.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 5988.385105][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 5988.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 5988.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 5988.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 5988.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 5988.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 5988.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5988.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 5988.385115][    C3] PKRU: 55555554
[ 5988.385116][    C3] Call Trace:
[ 5988.385118][    C3]  <TASK>
[ 5988.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 5988.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 5988.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 5988.385127][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 5988.385129][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 5988.385131][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5988.385133][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 5988.385136][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 5988.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 5988.385140][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 5988.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 5988.385145][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 5988.385147][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 5988.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 5988.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 5988.385153][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 5988.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 5988.385157][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5988.385159][    C3]  ? release_sock (net/core/sock.c:3794)
[ 5988.385161][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 5988.385163][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 5988.385166][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5988.385168][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 5988.385170][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 5988.385172][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 5988.385174][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5988.385175][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 5988.385177][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 5988.385179][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 5988.385180][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5988.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 5988.385184][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 5988.385186][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 5988.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 5988.385189][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 5988.385191][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 5988.385192][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 5988.385194][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 5988.385196][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 5988.385197][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 5988.385200][    C3]  vfs_write (fs/read_write.c:686)
[ 5988.385202][    C3]  ksys_write (fs/read_write.c:739)
[ 5988.385203][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 5988.385205][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 5988.385207][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 5988.385210][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 5988.385212][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 5988.385214][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 5988.385215][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 5988.385216][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 5988.385217][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 5988.385218][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 5988.385218][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 5988.385219][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6016.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6016.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6016.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6016.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 6016.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6016.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6016.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6016.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6016.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6016.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6016.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6016.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6016.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6016.385112][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6016.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6016.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6016.385116][    C3] PKRU: 55555554
[ 6016.385117][    C3] Call Trace:
[ 6016.385119][    C3]  <TASK>
[ 6016.385121][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6016.385123][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6016.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6016.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6016.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6016.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6016.385135][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6016.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6016.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6016.385142][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6016.385144][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6016.385147][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6016.385149][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6016.385150][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6016.385152][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6016.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6016.385157][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6016.385159][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6016.385161][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6016.385163][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6016.385165][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6016.385168][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6016.385170][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6016.385172][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6016.385174][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6016.385175][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6016.385177][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6016.385179][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6016.385180][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6016.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6016.385184][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6016.385186][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6016.385187][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6016.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6016.385191][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6016.385192][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6016.385194][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6016.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6016.385198][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6016.385199][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6016.385202][    C3]  vfs_write (fs/read_write.c:686)
[ 6016.385204][    C3]  ksys_write (fs/read_write.c:739)
[ 6016.385205][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6016.385207][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6016.385209][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6016.385212][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6016.385214][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6016.385216][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6016.385217][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6016.385218][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6016.385219][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6016.385220][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6016.385220][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6016.385221][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6022.469584][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6022.469746][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6022.469888][    C3] NMI backtrace for cpu 3
| [ 6022.469894][    C3] Tainted: [L]=SOFTLOCKUP
[ 6022.469895][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6022.469896][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6022.469899][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6022.469900][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6022.469901][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6022.469902][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6022.469903][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6022.469904][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6022.469904][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6022.469906][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6022.469908][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6022.469909][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6022.469910][    C3] PKRU: 55555554
[ 6022.469910][    C3] Call Trace:
[ 6022.469912][    C3]  <TASK>
[ 6022.469913][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6022.469919][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6022.469922][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6022.469924][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6022.469926][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6022.469928][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6022.469930][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6022.469932][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6022.469935][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6022.469937][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6022.469939][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6022.469942][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6022.469944][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6022.469945][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6022.469947][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6022.469949][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6022.469952][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6022.469954][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6022.469956][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6022.469958][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6022.469960][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6022.469963][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6022.469965][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6022.469966][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6022.469968][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6022.469970][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6022.469971][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6022.469973][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6022.469975][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6022.469976][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6022.469979][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6022.469980][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6022.469982][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6022.469983][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6022.469985][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6022.469987][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6022.469988][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6022.469990][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6022.469992][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6022.469993][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6022.469996][    C3]  vfs_write (fs/read_write.c:686)
[ 6022.469998][    C3]  ksys_write (fs/read_write.c:739)
[ 6022.469999][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6022.470001][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6022.470003][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6022.470006][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6022.470007][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6022.470009][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6022.470010][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6022.470011][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6022.470012][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6022.470012][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6022.470013][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6022.470014][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6040.937073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6040.937306][    C3] rcu: 3-....: (5094164 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1859240
| [ 6040.937583][    C3] rcu: (t=5096245 jiffies g=527745 q=101733 ncpus=4)
| [ 6040.937720][    C3] Tainted: [L]=SOFTLOCKUP
[ 6040.937720][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6040.937722][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6040.937725][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6040.937727][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6040.937729][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6040.937730][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6040.937731][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6040.937732][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6040.937732][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6040.937734][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6040.937737][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6040.937738][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6040.937739][    C3] PKRU: 55555554
[ 6040.937739][    C3] Call Trace:
[ 6040.937740][    C3]  <TASK>
[ 6040.937741][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6040.937743][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6040.937745][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6040.937748][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6040.937750][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6040.937752][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6040.937754][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6040.937756][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6040.937759][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6040.937761][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6040.937763][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6040.937766][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6040.937768][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6040.937770][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6040.937772][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6040.937774][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6040.937776][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6040.937778][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6040.937780][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6040.937782][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6040.937784][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6040.937787][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6040.937789][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6040.937791][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6040.937793][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6040.937795][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6040.937796][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6040.937798][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6040.937800][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6040.937801][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6040.937803][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6040.937805][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6040.937806][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6040.937808][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6040.937810][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6040.937811][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6040.937813][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6040.937815][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6040.937816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6040.937818][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6040.937820][    C3]  vfs_write (fs/read_write.c:686)
[ 6040.937822][    C3]  ksys_write (fs/read_write.c:739)
[ 6040.937824][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6040.937826][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6040.937828][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6040.937830][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6040.937832][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6040.937833][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6040.937834][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6040.937835][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6040.937836][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6040.937837][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6040.937838][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6040.937838][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6068.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6068.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6068.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6068.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 6068.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6068.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6068.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6068.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6068.385107][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6068.385108][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6068.385109][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6068.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6068.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6068.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6068.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6068.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6068.385117][    C3] PKRU: 55555554
[ 6068.385118][    C3] Call Trace:
[ 6068.385119][    C3]  <TASK>
[ 6068.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6068.385124][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6068.385126][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6068.385128][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6068.385130][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6068.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6068.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6068.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6068.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6068.385141][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6068.385144][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6068.385146][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6068.385148][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6068.385150][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6068.385152][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6068.385154][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6068.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6068.385158][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6068.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6068.385162][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6068.385164][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6068.385167][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6068.385169][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6068.385171][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6068.385173][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6068.385174][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6068.385176][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6068.385178][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6068.385179][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6068.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6068.385183][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6068.385184][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6068.385186][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6068.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6068.385189][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6068.385191][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6068.385193][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6068.385194][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6068.385196][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6068.385197][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6068.385200][    C3]  vfs_write (fs/read_write.c:686)
[ 6068.385202][    C3]  ksys_write (fs/read_write.c:739)
[ 6068.385204][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6068.385205][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6068.385208][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6068.385210][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6068.385212][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6068.385214][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6068.385215][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6068.385216][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6068.385217][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6068.385218][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6068.385218][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6068.385219][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6096.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6096.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6096.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6096.385097][    C3] Tainted: [L]=SOFTLOCKUP
[ 6096.385098][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6096.385099][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6096.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6096.385102][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6096.385103][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6096.385104][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6096.385105][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6096.385105][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6096.385106][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6096.385108][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6096.385110][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6096.385111][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6096.385112][    C3] PKRU: 55555554
[ 6096.385112][    C3] Call Trace:
[ 6096.385114][    C3]  <TASK>
[ 6096.385116][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6096.385118][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6096.385120][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6096.385122][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6096.385125][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6096.385126][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6096.385129][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6096.385131][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6096.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6096.385136][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6096.385138][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6096.385140][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6096.385142][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6096.385144][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6096.385146][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6096.385148][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6096.385151][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6096.385152][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6096.385154][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6096.385156][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6096.385158][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6096.385161][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6096.385163][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6096.385165][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6096.385167][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6096.385168][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6096.385170][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6096.385171][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6096.385173][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6096.385175][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6096.385177][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6096.385178][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6096.385180][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6096.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6096.385183][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6096.385185][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6096.385187][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6096.385188][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6096.385190][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6096.385191][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6096.385194][    C3]  vfs_write (fs/read_write.c:686)
[ 6096.385196][    C3]  ksys_write (fs/read_write.c:739)
[ 6096.385198][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6096.385199][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6096.385202][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6096.385204][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6096.385206][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6096.385208][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6096.385209][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6096.385210][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6096.385211][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6096.385211][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6096.385212][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6096.385213][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6118.941072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6118.941273][    C3] rcu: 3-....: (5172143 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1890247
| [ 6118.941546][    C3] rcu: (t=5174249 jiffies g=527745 q=102870 ncpus=4)
| [ 6118.941692][    C3] Tainted: [L]=SOFTLOCKUP
[ 6118.941692][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6118.941693][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6118.941696][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6118.941697][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6118.941698][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6118.941699][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6118.941700][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6118.941701][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6118.941701][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6118.941703][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6118.941705][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6118.941706][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6118.941707][    C3] PKRU: 55555554
[ 6118.941707][    C3] Call Trace:
[ 6118.941708][    C3]  <TASK>
[ 6118.941709][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6118.941711][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6118.941713][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6118.941715][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6118.941718][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6118.941719][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6118.941722][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6118.941724][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6118.941727][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6118.941728][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6118.941731][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6118.941733][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6118.941735][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6118.941737][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6118.941739][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6118.941741][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6118.941743][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6118.941745][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6118.941747][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6118.941749][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6118.941751][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6118.941754][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6118.941756][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6118.941758][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6118.941759][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6118.941761][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6118.941762][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6118.941764][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6118.941766][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6118.941767][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6118.941770][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6118.941771][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6118.941773][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6118.941774][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6118.941776][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6118.941777][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6118.941779][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6118.941781][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6118.941782][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6118.941784][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6118.941786][    C3]  vfs_write (fs/read_write.c:686)
[ 6118.941788][    C3]  ksys_write (fs/read_write.c:739)
[ 6118.941790][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6118.941792][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6118.941794][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6118.941796][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6118.941798][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6118.941800][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6118.941801][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6118.941802][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6118.941803][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6118.941803][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6118.941804][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6118.941805][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6120.773507][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6120.773690][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6120.773844][    C3] NMI backtrace for cpu 3
| [ 6120.773847][    C3] Tainted: [L]=SOFTLOCKUP
[ 6120.773848][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6120.773849][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6120.773851][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6120.773852][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6120.773853][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6120.773854][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6120.773854][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6120.773855][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6120.773856][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6120.773858][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6120.773860][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6120.773861][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6120.773863][    C3] PKRU: 55555554
[ 6120.773863][    C3] Call Trace:
[ 6120.773864][    C3]  <TASK>
[ 6120.773865][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6120.773867][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6120.773869][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6120.773871][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6120.773873][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6120.773875][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6120.773877][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6120.773879][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6120.773882][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6120.773884][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6120.773886][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6120.773889][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6120.773891][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6120.773892][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6120.773894][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6120.773896][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6120.773899][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6120.773901][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6120.773903][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6120.773905][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6120.773906][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6120.773909][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6120.773911][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6120.773913][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6120.773915][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6120.773916][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6120.773917][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6120.773919][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6120.773921][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6120.773922][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6120.773925][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6120.773926][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6120.773928][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6120.773930][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6120.773931][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6120.773933][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6120.773934][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6120.773936][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6120.773938][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6120.773939][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6120.773942][    C3]  vfs_write (fs/read_write.c:686)
[ 6120.773944][    C3]  ksys_write (fs/read_write.c:739)
[ 6120.773945][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6120.773947][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6120.773949][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6120.773952][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6120.773953][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6120.773955][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6120.773956][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6120.773957][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6120.773958][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6120.773958][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6120.773959][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6120.773960][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6148.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6148.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6148.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6148.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 6148.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6148.385108][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:182 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[ 6148.385112][    C3] Code: 00 00 00 f3 0f 1e fa 48 89 f2 be f8 00 00 00 e9 5f 91 ab 01 0f 1f 40 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 48 85 f6 <0f> 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	48 89 f2             	mov    %rsi,%rdx
   a:	be f8 00 00 00       	mov    $0xf8,%esi
   f:	e9 5f 91 ab 01       	jmp    0x1ab9173
  14:	0f 1f 40 00          	nopl   0x0(%rax)
  18:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  1f:	00 00 00 00 
  23:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  27:	48 85 f6             	test   %rsi,%rsi
  2a:*	0f 84 9a 01 00 00    	je     0x1ca		<-- trapping instruction
  30:	48 89 f8             	mov    %rdi,%rax
  33:	41 57                	push   %r15
  35:	49 89 c8             	mov    %rcx,%r8
  38:	48 01 f0             	add    %rsi,%rax
  3b:	41 56                	push   %r14
  3d:	53                   	push   %rbx
  3e:	0f                   	.byte 0xf
  3f:	82                   	.byte 0x82

Code starting with the faulting instruction
===========================================
   0:	0f 84 9a 01 00 00    	je     0x1a0
   6:	48 89 f8             	mov    %rdi,%rax
   9:	41 57                	push   %r15
   b:	49 89 c8             	mov    %rcx,%r8
   e:	48 01 f0             	add    %rsi,%rax
  11:	41 56                	push   %r14
  13:	53                   	push   %rbx
  14:	0f                   	.byte 0xf
  15:	82                   	.byte 0x82
[ 6148.385113][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[ 6148.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 6148.385115][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6148.385116][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6148.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6148.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6148.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6148.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6148.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6148.385123][    C3] PKRU: 55555554
[ 6148.385124][    C3] Call Trace:
[ 6148.385126][    C3]  <TASK>
[ 6148.385127][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 6148.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6148.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6148.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6148.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6148.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6148.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6148.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6148.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6148.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6148.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6148.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6148.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6148.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6148.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6148.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6148.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6148.385165][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6148.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6148.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6148.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6148.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6148.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6148.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6148.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6148.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6148.385183][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6148.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6148.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6148.385188][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6148.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6148.385192][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6148.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6148.385195][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6148.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6148.385198][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6148.385200][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6148.385202][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6148.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6148.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6148.385207][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6148.385209][    C3]  vfs_write (fs/read_write.c:686)
[ 6148.385211][    C3]  ksys_write (fs/read_write.c:739)
[ 6148.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6148.385215][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6148.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6148.385219][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6148.385221][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6148.385223][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6148.385224][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6148.385225][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6148.385225][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6148.385226][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6148.385227][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6148.385227][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6176.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6176.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6176.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6176.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 6176.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6176.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6176.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6176.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6176.385105][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6176.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6176.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6176.385107][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6176.385108][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6176.385110][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6176.385112][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6176.385113][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6176.385114][    C3] PKRU: 55555554
[ 6176.385115][    C3] Call Trace:
[ 6176.385117][    C3]  <TASK>
[ 6176.385119][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6176.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6176.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6176.385125][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6176.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6176.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6176.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6176.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6176.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6176.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6176.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6176.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6176.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6176.385147][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6176.385149][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6176.385151][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6176.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6176.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6176.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6176.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6176.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6176.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6176.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6176.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6176.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6176.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6176.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6176.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6176.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6176.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6176.385181][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6176.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6176.385184][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6176.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6176.385187][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6176.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6176.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6176.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6176.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6176.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6176.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 6176.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 6176.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6176.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6176.385205][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6176.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6176.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6176.385211][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6176.385212][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6176.385213][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6176.385214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6176.385215][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6176.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6176.385216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6196.945072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6196.945288][    C3] rcu: 3-....: (5250114 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1920907
| [ 6196.945510][    C3] rcu: (t=5252253 jiffies g=527745 q=104370 ncpus=4)
| [ 6196.945696][    C3] Tainted: [L]=SOFTLOCKUP
[ 6196.945697][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6196.945698][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6196.945701][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6196.945702][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6196.945703][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6196.945704][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6196.945705][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6196.945706][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6196.945707][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6196.945708][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6196.945711][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6196.945711][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6196.945712][    C3] PKRU: 55555554
[ 6196.945713][    C3] Call Trace:
[ 6196.945714][    C3]  <TASK>
[ 6196.945715][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6196.945717][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6196.945719][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6196.945722][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6196.945724][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6196.945726][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6196.945728][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6196.945730][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6196.945733][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6196.945734][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6196.945737][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6196.945739][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6196.945742][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6196.945743][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6196.945745][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6196.945747][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6196.945750][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6196.945751][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6196.945754][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6196.945755][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6196.945757][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6196.945760][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6196.945762][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6196.945764][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6196.945766][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6196.945767][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6196.945768][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6196.945770][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6196.945772][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6196.945773][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6196.945776][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6196.945777][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6196.945779][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6196.945781][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6196.945782][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6196.945784][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6196.945785][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6196.945787][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6196.945788][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6196.945790][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6196.945792][    C3]  vfs_write (fs/read_write.c:686)
[ 6196.945794][    C3]  ksys_write (fs/read_write.c:739)
[ 6196.945796][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6196.945798][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6196.945800][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6196.945802][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6196.945804][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6196.945805][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6196.945806][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6196.945808][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6196.945808][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6196.945809][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6196.945810][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6196.945810][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6219.077563][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6219.077722][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6219.077865][    C3] NMI backtrace for cpu 3
| [ 6219.077872][    C3] Tainted: [L]=SOFTLOCKUP
[ 6219.077873][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6219.077874][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6219.077878][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6219.077879][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6219.077881][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6219.077881][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6219.077882][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6219.077883][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6219.077884][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6219.077885][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6219.077888][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6219.077888][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6219.077889][    C3] PKRU: 55555554
[ 6219.077890][    C3] Call Trace:
[ 6219.077892][    C3]  <TASK>
[ 6219.077893][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6219.077896][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6219.077898][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6219.077900][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6219.077902][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6219.077904][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6219.077906][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6219.077909][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6219.077912][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6219.077913][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6219.077916][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6219.077918][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6219.077920][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6219.077922][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6219.077924][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6219.077926][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6219.077928][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6219.077930][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6219.077932][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6219.077934][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6219.077936][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6219.077939][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6219.077941][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6219.077943][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6219.077945][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6219.077946][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6219.077948][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6219.077949][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6219.077951][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6219.077952][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6219.077955][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6219.077957][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6219.077958][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6219.077960][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6219.077962][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6219.077964][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6219.077965][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6219.077967][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6219.077969][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6219.077970][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6219.077973][    C3]  vfs_write (fs/read_write.c:686)
[ 6219.077975][    C3]  ksys_write (fs/read_write.c:739)
[ 6219.077976][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6219.077978][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6219.077980][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6219.077983][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6219.077985][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6219.077987][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6219.077988][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6219.077989][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6219.077990][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6219.077990][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6219.077991][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6219.077992][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6244.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6244.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6244.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6244.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 6244.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6244.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6244.385111][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6244.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6244.385114][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6244.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6244.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6244.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6244.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6244.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6244.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6244.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6244.385123][    C3] PKRU: 55555554
[ 6244.385123][    C3] Call Trace:
[ 6244.385125][    C3]  <TASK>
[ 6244.385128][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6244.385130][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6244.385132][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6244.385134][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6244.385137][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6244.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6244.385141][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6244.385143][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6244.385146][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6244.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6244.385150][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6244.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6244.385155][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6244.385156][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6244.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6244.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6244.385163][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6244.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6244.385167][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6244.385169][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6244.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6244.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6244.385176][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6244.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6244.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6244.385181][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6244.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6244.385184][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6244.385186][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6244.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6244.385190][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6244.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6244.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6244.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6244.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6244.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6244.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6244.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6244.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6244.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6244.385207][    C3]  vfs_write (fs/read_write.c:686)
[ 6244.385209][    C3]  ksys_write (fs/read_write.c:739)
[ 6244.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6244.385213][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6244.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6244.385217][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6244.385219][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6244.385221][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6244.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6244.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6244.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6244.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6244.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6244.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6272.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6272.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6272.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6272.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 6272.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6272.385100][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 6272.385103][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 6272.385104][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 6272.385106][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 6272.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6272.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6272.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6272.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6272.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6272.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6272.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6272.385115][    C3] PKRU: 55555554
[ 6272.385116][    C3] Call Trace:
[ 6272.385118][    C3]  <TASK>
[ 6272.385120][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 6272.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6272.385124][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6272.385126][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6272.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6272.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6272.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6272.385135][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6272.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6272.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6272.385142][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6272.385144][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6272.385147][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6272.385149][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6272.385150][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6272.385153][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6272.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6272.385157][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6272.385159][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6272.385161][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6272.385163][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6272.385165][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6272.385168][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6272.385170][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6272.385172][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6272.385174][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6272.385175][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6272.385176][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6272.385178][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6272.385180][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6272.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6272.385184][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6272.385185][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6272.385187][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6272.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6272.385190][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6272.385192][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6272.385194][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6272.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6272.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6272.385199][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6272.385201][    C3]  vfs_write (fs/read_write.c:686)
[ 6272.385203][    C3]  ksys_write (fs/read_write.c:739)
[ 6272.385205][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6272.385207][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6272.385209][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6272.385212][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6272.385214][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6272.385215][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6272.385216][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6272.385218][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6272.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6272.385219][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6272.385220][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6272.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6274.948072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6274.948255][    C3] rcu: 3-....: (5328086 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1952576
| [ 6274.948521][    C3] rcu: (t=5330256 jiffies g=527745 q=105870 ncpus=4)
| [ 6274.948661][    C3] Tainted: [L]=SOFTLOCKUP
[ 6274.948662][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6274.948663][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6274.948665][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6274.948666][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6274.948667][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6274.948668][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6274.948669][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6274.948669][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6274.948670][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6274.948672][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6274.948674][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6274.948675][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6274.948675][    C3] PKRU: 55555554
[ 6274.948676][    C3] Call Trace:
[ 6274.948677][    C3]  <TASK>
[ 6274.948677][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6274.948679][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6274.948681][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6274.948684][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6274.948686][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6274.948687][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6274.948690][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6274.948692][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6274.948694][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6274.948696][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6274.948698][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6274.948701][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6274.948703][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6274.948705][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6274.948707][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6274.948709][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6274.948711][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6274.948713][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6274.948715][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6274.948717][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6274.948719][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6274.948722][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6274.948724][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6274.948725][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6274.948727][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6274.948729][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6274.948730][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6274.948732][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6274.948734][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6274.948735][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6274.948737][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6274.948739][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6274.948740][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6274.948742][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6274.948744][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6274.948745][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6274.948747][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6274.948749][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6274.948750][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6274.948752][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6274.948754][    C3]  vfs_write (fs/read_write.c:686)
[ 6274.948756][    C3]  ksys_write (fs/read_write.c:739)
[ 6274.948758][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6274.948760][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6274.948762][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6274.948764][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6274.948766][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6274.948767][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6274.948768][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6274.948769][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6274.948770][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6274.948770][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6274.948771][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6274.948772][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6300.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6300.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6300.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6300.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 6300.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6300.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6300.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6300.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6300.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6300.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6300.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6300.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6300.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6300.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6300.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6300.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6300.385115][    C3] PKRU: 55555554
[ 6300.385116][    C3] Call Trace:
[ 6300.385118][    C3]  <TASK>
[ 6300.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6300.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6300.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6300.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6300.385129][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6300.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6300.385133][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6300.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6300.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6300.385140][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6300.385142][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6300.385145][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6300.385147][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6300.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6300.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6300.385153][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6300.385155][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6300.385157][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6300.385159][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6300.385161][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6300.385163][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6300.385166][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6300.385168][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6300.385170][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6300.385172][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6300.385173][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6300.385175][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6300.385177][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6300.385178][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6300.385180][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6300.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6300.385183][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6300.385185][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6300.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6300.385188][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6300.385190][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6300.385192][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6300.385193][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6300.385195][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6300.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6300.385199][    C3]  vfs_write (fs/read_write.c:686)
[ 6300.385201][    C3]  ksys_write (fs/read_write.c:739)
[ 6300.385203][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6300.385204][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6300.385206][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6300.385209][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6300.385211][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6300.385213][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6300.385214][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6300.385215][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6300.385216][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6300.385216][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6300.385217][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6300.385218][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6317.380551][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6317.380725][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6317.380882][    C3] NMI backtrace for cpu 3
| [ 6317.380888][    C3] Tainted: [L]=SOFTLOCKUP
[ 6317.380889][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6317.380890][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6317.380893][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6317.380894][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6317.380896][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6317.380896][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6317.380897][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6317.380898][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6317.380899][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6317.380901][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6317.380903][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6317.380904][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6317.380905][    C3] PKRU: 55555554
[ 6317.380906][    C3] Call Trace:
[ 6317.380908][    C3]  <TASK>
[ 6317.380909][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6317.380911][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6317.380913][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6317.380916][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6317.380918][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6317.380920][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6317.380922][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6317.380924][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6317.380931][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6317.380933][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6317.380935][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6317.380938][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6317.380940][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6317.380942][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6317.380944][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6317.380946][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6317.380948][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6317.380950][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6317.380952][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6317.380954][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6317.380956][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6317.380959][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6317.380961][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6317.380963][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6317.380965][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6317.380966][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6317.380968][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6317.380969][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6317.380971][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6317.380972][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6317.380975][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6317.380976][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6317.380978][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6317.380980][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6317.380981][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6317.380983][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6317.380985][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6317.380986][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6317.380988][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6317.380989][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6317.380992][    C3]  vfs_write (fs/read_write.c:686)
[ 6317.380994][    C3]  ksys_write (fs/read_write.c:739)
[ 6317.380996][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6317.380997][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6317.381000][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6317.381002][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6317.381004][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6317.381006][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6317.381007][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6317.381008][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6317.381009][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6317.381009][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6317.381010][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6317.381011][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6344.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6344.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6344.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6344.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 6344.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6344.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6344.385116][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6344.385117][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6344.385118][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6344.385119][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6344.385120][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6344.385121][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6344.385122][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6344.385124][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6344.385126][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6344.385127][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6344.385128][    C3] PKRU: 55555554
[ 6344.385129][    C3] Call Trace:
[ 6344.385131][    C3]  <TASK>
[ 6344.385133][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6344.385135][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6344.385137][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6344.385140][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6344.385142][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6344.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6344.385146][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6344.385149][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6344.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6344.385153][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6344.385156][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6344.385158][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6344.385161][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6344.385162][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6344.385164][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6344.385166][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6344.385169][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6344.385171][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6344.385173][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6344.385175][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6344.385177][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6344.385180][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6344.385183][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6344.385184][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6344.385186][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6344.385188][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6344.385189][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6344.385191][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6344.385193][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6344.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6344.385197][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6344.385198][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6344.385200][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6344.385202][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6344.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6344.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6344.385207][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6344.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6344.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6344.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6344.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 6344.385216][    C3]  ksys_write (fs/read_write.c:739)
[ 6344.385218][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6344.385220][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6344.385222][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6344.385224][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6344.385226][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6344.385228][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6344.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6344.385231][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6344.385231][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6344.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6344.385233][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6344.385234][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6352.952071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6352.952282][    C3] rcu: 3-....: (5406059 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=1987948
| [ 6352.952506][    C3] rcu: (t=5408260 jiffies g=527745 q=107367 ncpus=4)
| [ 6352.952692][    C3] Tainted: [L]=SOFTLOCKUP
[ 6352.952693][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6352.952693][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6352.952696][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6352.952697][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6352.952699][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6352.952700][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6352.952701][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6352.952702][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6352.952702][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6352.952704][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6352.952707][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6352.952708][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6352.952709][    C3] PKRU: 55555554
[ 6352.952710][    C3] Call Trace:
[ 6352.952710][    C3]  <TASK>
[ 6352.952711][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6352.952714][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6352.952716][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6352.952718][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6352.952720][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6352.952722][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6352.952725][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6352.952727][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6352.952729][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6352.952731][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6352.952733][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6352.952736][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6352.952738][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6352.952740][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6352.952742][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6352.952744][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6352.952746][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6352.952748][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6352.952750][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6352.952752][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6352.952754][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6352.952757][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6352.952759][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6352.952761][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6352.952763][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6352.952764][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6352.952766][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6352.952767][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6352.952769][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6352.952770][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6352.952773][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6352.952774][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6352.952776][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6352.952778][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6352.952779][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6352.952781][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6352.952782][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6352.952784][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6352.952785][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6352.952787][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6352.952789][    C3]  vfs_write (fs/read_write.c:686)
[ 6352.952791][    C3]  ksys_write (fs/read_write.c:739)
[ 6352.952793][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6352.952795][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6352.952797][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6352.952799][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6352.952801][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6352.952803][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6352.952804][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6352.952805][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6352.952806][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6352.952807][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6352.952808][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6352.952808][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6380.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6380.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6380.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6380.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 6380.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6380.385103][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6380.385105][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6380.385106][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6380.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6380.385108][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6380.385109][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6380.385110][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6380.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6380.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6380.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6380.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6380.385117][    C3] PKRU: 55555554
[ 6380.385118][    C3] Call Trace:
[ 6380.385120][    C3]  <TASK>
[ 6380.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6380.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6380.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6380.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6380.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6380.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6380.385136][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6380.385138][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6380.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6380.385143][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6380.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6380.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6380.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6380.385151][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6380.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6380.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6380.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6380.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6380.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6380.385165][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6380.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6380.385169][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6380.385171][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6380.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6380.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6380.385177][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6380.385178][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6380.385180][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6380.385182][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6380.385183][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6380.385186][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6380.385187][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6380.385189][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6380.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6380.385192][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6380.385194][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6380.385195][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6380.385197][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6380.385199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6380.385200][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6380.385203][    C3]  vfs_write (fs/read_write.c:686)
[ 6380.385205][    C3]  ksys_write (fs/read_write.c:739)
[ 6380.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6380.385209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6380.385211][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6380.385213][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6380.385215][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6380.385217][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6380.385218][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6380.385219][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6380.385220][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6380.385221][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6380.385221][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6380.385222][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6408.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6408.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6408.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6408.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 6408.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6408.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6408.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6408.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6408.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6408.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6408.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6408.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6408.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6408.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6408.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6408.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6408.385115][    C3] PKRU: 55555554
[ 6408.385116][    C3] Call Trace:
[ 6408.385118][    C3]  <TASK>
[ 6408.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6408.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6408.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6408.385127][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6408.385129][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6408.385131][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6408.385134][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6408.385136][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6408.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6408.385140][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6408.385143][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6408.385145][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6408.385147][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6408.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6408.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6408.385153][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6408.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6408.385158][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6408.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6408.385162][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6408.385164][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6408.385167][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6408.385169][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6408.385171][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6408.385173][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6408.385174][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6408.385175][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6408.385178][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6408.385179][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6408.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6408.385183][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6408.385185][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6408.385186][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6408.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6408.385190][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6408.385191][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6408.385193][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6408.385195][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6408.385196][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6408.385198][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6408.385200][    C3]  vfs_write (fs/read_write.c:686)
[ 6408.385202][    C3]  ksys_write (fs/read_write.c:739)
[ 6408.385204][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6408.385206][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6408.385208][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6408.385211][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6408.385213][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6408.385215][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6408.385216][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6408.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6408.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6408.385218][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6408.385219][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6408.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6415.685501][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6415.685670][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6415.685868][    C3] NMI backtrace for cpu 3
| [ 6415.685874][    C3] Tainted: [L]=SOFTLOCKUP
[ 6415.685874][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6415.685876][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6415.685879][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6415.685880][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6415.685881][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6415.685882][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6415.685882][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6415.685883][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6415.685884][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6415.685886][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6415.685888][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6415.685889][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6415.685890][    C3] PKRU: 55555554
[ 6415.685890][    C3] Call Trace:
[ 6415.685892][    C3]  <TASK>
[ 6415.685894][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6415.685896][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6415.685899][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6415.685901][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6415.685903][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6415.685905][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6415.685908][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6415.685910][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6415.685913][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6415.685914][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6415.685917][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6415.685919][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6415.685922][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6415.685923][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6415.685925][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6415.685927][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6415.685930][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6415.685932][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6415.685934][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6415.685936][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6415.685938][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6415.685941][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6415.685943][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6415.685945][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6415.685946][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6415.685948][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6415.685949][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6415.685951][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6415.685953][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6415.685954][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6415.685957][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6415.685958][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6415.685960][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6415.685962][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6415.685963][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6415.685965][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6415.685966][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6415.685968][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6415.685970][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6415.685971][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6415.685974][    C3]  vfs_write (fs/read_write.c:686)
[ 6415.685976][    C3]  ksys_write (fs/read_write.c:739)
[ 6415.685977][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6415.685979][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6415.685981][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6415.685984][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6415.685986][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6415.685987][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6415.685988][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6415.685989][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6415.685990][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6415.685991][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6415.685991][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6415.685992][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6430.956072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6430.956301][    C3] rcu: 3-....: (5484032 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2019528
| [ 6430.956574][    C3] rcu: (t=5486264 jiffies g=527745 q=108864 ncpus=4)
| [ 6430.956707][    C3] Tainted: [L]=SOFTLOCKUP
[ 6430.956708][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6430.956709][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6430.956713][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6430.956714][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6430.956717][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6430.956718][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6430.956718][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6430.956719][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6430.956720][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6430.956722][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6430.956724][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6430.956725][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6430.956726][    C3] PKRU: 55555554
[ 6430.956727][    C3] Call Trace:
[ 6430.956727][    C3]  <TASK>
[ 6430.956728][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6430.956731][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6430.956733][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6430.956735][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6430.956737][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6430.956739][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6430.956741][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6430.956743][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6430.956746][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6430.956748][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6430.956750][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6430.956753][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6430.956755][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6430.956757][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6430.956759][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6430.956761][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6430.956763][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6430.956765][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6430.956767][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6430.956769][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6430.956771][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6430.956774][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6430.956776][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6430.956778][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6430.956780][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6430.956781][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6430.956783][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6430.956784][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6430.956786][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6430.956788][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6430.956790][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6430.956792][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6430.956793][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6430.956795][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6430.956796][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6430.956798][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6430.956800][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6430.956801][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6430.956803][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6430.956804][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6430.956807][    C3]  vfs_write (fs/read_write.c:686)
[ 6430.956809][    C3]  ksys_write (fs/read_write.c:739)
[ 6430.956811][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6430.956812][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6430.956815][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6430.956817][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6430.956819][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6430.956820][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6430.956821][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6430.956823][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6430.956824][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6430.956824][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6430.956825][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6430.956826][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6456.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6456.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6456.385097][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6456.385103][    C3] Tainted: [L]=SOFTLOCKUP
[ 6456.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6456.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6456.385111][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6456.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6456.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6456.385115][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6456.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6456.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6456.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6456.385119][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6456.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6456.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6456.385123][    C3] PKRU: 55555554
[ 6456.385124][    C3] Call Trace:
[ 6456.385127][    C3]  <TASK>
[ 6456.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6456.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6456.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6456.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6456.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6456.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6456.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6456.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6456.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6456.385149][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6456.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6456.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6456.385156][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6456.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6456.385160][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6456.385162][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6456.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6456.385166][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6456.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6456.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6456.385172][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6456.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6456.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6456.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6456.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6456.385183][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6456.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6456.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6456.385188][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6456.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6456.385192][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6456.385193][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6456.385195][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6456.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6456.385198][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6456.385200][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6456.385201][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6456.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6456.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6456.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6456.385209][    C3]  vfs_write (fs/read_write.c:686)
[ 6456.385211][    C3]  ksys_write (fs/read_write.c:739)
[ 6456.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6456.385214][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6456.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6456.385219][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6456.385222][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6456.385223][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6456.385224][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6456.385226][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6456.385227][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6456.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6456.385228][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6456.385229][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6484.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6484.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6484.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6484.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 6484.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6484.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6484.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6484.385110][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6484.385112][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6484.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6484.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6484.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6484.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6484.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6484.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6484.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6484.385122][    C3] PKRU: 55555554
[ 6484.385123][    C3] Call Trace:
[ 6484.385126][    C3]  <TASK>
[ 6484.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6484.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6484.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6484.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6484.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6484.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6484.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6484.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6484.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6484.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6484.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6484.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6484.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6484.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6484.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6484.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6484.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6484.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6484.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6484.385172][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6484.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6484.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6484.385179][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6484.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6484.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6484.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6484.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6484.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6484.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6484.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6484.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6484.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6484.385196][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6484.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6484.385199][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6484.385201][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6484.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6484.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6484.385206][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6484.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6484.385210][    C3]  vfs_write (fs/read_write.c:686)
[ 6484.385212][    C3]  ksys_write (fs/read_write.c:739)
[ 6484.385214][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6484.385216][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6484.385218][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6484.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6484.385223][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6484.385226][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6484.385227][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6484.385228][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6484.385229][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6484.385230][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6484.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6484.385231][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6508.959072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6508.959289][    C3] rcu: 3-....: (5562011 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2051100
| [ 6508.959564][    C3] rcu: (t=5564267 jiffies g=527745 q=110001 ncpus=4)
| [ 6508.959700][    C3] Tainted: [L]=SOFTLOCKUP
[ 6508.959701][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6508.959701][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6508.959705][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6508.959706][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6508.959707][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6508.959708][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6508.959709][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6508.959710][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6508.959711][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6508.959712][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6508.959715][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6508.959716][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6508.959717][    C3] PKRU: 55555554
[ 6508.959718][    C3] Call Trace:
[ 6508.959718][    C3]  <TASK>
[ 6508.959719][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6508.959722][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6508.959724][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6508.959726][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6508.959728][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6508.959730][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6508.959732][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6508.959734][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6508.959737][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6508.959739][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6508.959741][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6508.959744][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6508.959746][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6508.959748][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6508.959750][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6508.959752][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6508.959754][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6508.959756][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6508.959758][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6508.959760][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6508.959762][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6508.959765][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6508.959767][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6508.959769][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6508.959771][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6508.959772][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6508.959774][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6508.959775][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6508.959777][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6508.959778][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6508.959781][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6508.959782][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6508.959784][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6508.959786][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6508.959787][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6508.959789][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6508.959791][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6508.959792][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6508.959794][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6508.959796][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6508.959798][    C3]  vfs_write (fs/read_write.c:686)
[ 6508.959800][    C3]  ksys_write (fs/read_write.c:739)
[ 6508.959802][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6508.959804][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6508.959806][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6508.959808][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6508.959810][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6508.959811][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6508.959812][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6508.959814][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6508.959814][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6508.959815][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6508.959816][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6508.959817][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6513.989486][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6513.989686][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6513.989881][    C3] NMI backtrace for cpu 3
| [ 6513.989886][    C3] Tainted: [L]=SOFTLOCKUP
[ 6513.989887][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6513.989888][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6513.989890][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6513.989891][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6513.989893][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6513.989893][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6513.989894][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6513.989895][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6513.989896][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6513.989898][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6513.989900][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6513.989901][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6513.989901][    C3] PKRU: 55555554
[ 6513.989902][    C3] Call Trace:
[ 6513.989903][    C3]  <TASK>
[ 6513.989904][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6513.989906][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6513.989908][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6513.989911][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6513.989913][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6513.989915][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6513.989917][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6513.989919][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6513.989922][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6513.989923][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6513.989926][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6513.989928][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6513.989931][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6513.989932][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6513.989934][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6513.989936][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6513.989939][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6513.989940][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6513.989943][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6513.989945][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6513.989946][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6513.989949][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6513.989951][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6513.989953][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6513.989955][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6513.989956][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6513.989957][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6513.989959][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6513.989961][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6513.989962][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6513.989965][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6513.989966][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6513.989968][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6513.989969][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6513.989971][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6513.989973][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6513.989974][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6513.989976][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6513.989978][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6513.989979][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6513.989982][    C3]  vfs_write (fs/read_write.c:686)
[ 6513.989984][    C3]  ksys_write (fs/read_write.c:739)
[ 6513.989985][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6513.989987][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6513.989989][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6513.989992][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6513.989993][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6513.989994][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6513.989995][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6513.989996][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6513.989997][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6513.989998][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6513.989998][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6513.989999][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6540.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6540.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6540.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6540.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 6540.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6540.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6540.385113][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6540.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6540.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6540.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6540.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6540.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6540.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6540.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6540.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6540.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6540.385124][    C3] PKRU: 55555554
[ 6540.385125][    C3] Call Trace:
[ 6540.385127][    C3]  <TASK>
[ 6540.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6540.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6540.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6540.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6540.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6540.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6540.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6540.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6540.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6540.385149][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6540.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6540.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6540.385156][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6540.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6540.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6540.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6540.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6540.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6540.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6540.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6540.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6540.385174][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6540.385176][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6540.385178][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6540.385180][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6540.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6540.385183][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6540.385185][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6540.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6540.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6540.385190][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6540.385192][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6540.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6540.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6540.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6540.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6540.385200][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6540.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6540.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6540.385205][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6540.385207][    C3]  vfs_write (fs/read_write.c:686)
[ 6540.385209][    C3]  ksys_write (fs/read_write.c:739)
[ 6540.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6540.385213][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6540.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6540.385217][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6540.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6540.385221][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6540.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6540.385224][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6540.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6540.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6540.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6540.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6568.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6568.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6568.385092][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6568.385097][    C3] Tainted: [L]=SOFTLOCKUP
[ 6568.385098][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6568.385099][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6568.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6568.385102][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6568.385104][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6568.385105][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6568.385106][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6568.385107][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6568.385107][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6568.385109][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6568.385112][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6568.385113][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6568.385114][    C3] PKRU: 55555554
[ 6568.385114][    C3] Call Trace:
[ 6568.385116][    C3]  <TASK>
[ 6568.385118][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6568.385120][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6568.385122][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6568.385124][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6568.385127][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6568.385128][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6568.385131][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6568.385133][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6568.385136][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6568.385137][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6568.385140][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6568.385142][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6568.385144][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6568.385146][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6568.385148][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6568.385150][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6568.385153][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6568.385154][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6568.385157][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6568.385158][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6568.385160][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6568.385163][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6568.385165][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6568.385167][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6568.385169][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6568.385170][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6568.385172][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6568.385174][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6568.385176][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6568.385177][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6568.385179][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6568.385181][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6568.385182][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6568.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6568.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6568.385187][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6568.385189][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6568.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6568.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6568.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6568.385196][    C3]  vfs_write (fs/read_write.c:686)
[ 6568.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 6568.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6568.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6568.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6568.385207][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6568.385209][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6568.385210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6568.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6568.385212][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6568.385213][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6568.385214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6568.385214][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6568.385215][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6586.963072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6586.963302][    C3] rcu: 3-....: (5639984 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2083169
| [ 6586.963521][    C3] rcu: (t=5642271 jiffies g=527745 q=111498 ncpus=4)
| [ 6586.963709][    C3] Tainted: [L]=SOFTLOCKUP
[ 6586.963710][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6586.963711][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6586.963714][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6586.963716][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6586.963717][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6586.963718][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6586.963719][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6586.963720][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6586.963720][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6586.963722][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6586.963724][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6586.963725][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6586.963726][    C3] PKRU: 55555554
[ 6586.963727][    C3] Call Trace:
[ 6586.963728][    C3]  <TASK>
[ 6586.963729][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6586.963731][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6586.963733][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6586.963735][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6586.963738][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6586.963739][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6586.963742][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6586.963744][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6586.963747][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6586.963748][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6586.963751][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6586.963754][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6586.963756][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6586.963758][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6586.963760][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6586.963762][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6586.963764][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6586.963766][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6586.963768][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6586.963770][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6586.963772][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6586.963775][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6586.963777][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6586.963779][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6586.963781][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6586.963782][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6586.963783][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6586.963786][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6586.963787][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6586.963788][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6586.963791][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6586.963792][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6586.963794][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6586.963796][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6586.963797][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6586.963799][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6586.963801][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6586.963802][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6586.963804][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6586.963806][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6586.963808][    C3]  vfs_write (fs/read_write.c:686)
[ 6586.963810][    C3]  ksys_write (fs/read_write.c:739)
[ 6586.963812][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6586.963814][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6586.963816][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6586.963818][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6586.963820][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6586.963821][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6586.963822][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6586.963824][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6586.963824][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6586.963825][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6586.963826][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6586.963826][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6612.292493][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6612.292701][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6612.292857][    C3] NMI backtrace for cpu 3
| [ 6612.292864][    C3] Tainted: [L]=SOFTLOCKUP
[ 6612.292864][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6612.292866][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6612.292869][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6612.292870][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6612.292872][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6612.292873][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6612.292873][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6612.292874][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6612.292875][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6612.292877][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6612.292879][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6612.292880][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6612.292881][    C3] PKRU: 55555554
[ 6612.292882][    C3] Call Trace:
[ 6612.292884][    C3]  <TASK>
[ 6612.292886][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6612.292888][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6612.292890][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6612.292893][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6612.292895][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6612.292897][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6612.292899][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6612.292901][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6612.292904][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6612.292906][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6612.292908][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6612.292911][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6612.292913][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6612.292914][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6612.292917][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6612.292919][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6612.292921][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6612.292923][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6612.292925][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6612.292927][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6612.292929][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6612.292932][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6612.292934][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6612.292936][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6612.292938][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6612.292939][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6612.292941][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6612.292943][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6612.292944][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6612.292946][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6612.292948][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6612.292950][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6612.292951][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6612.292953][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6612.292954][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6612.292956][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6612.292958][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6612.292960][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6612.292961][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6612.292963][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6612.292965][    C3]  vfs_write (fs/read_write.c:686)
[ 6612.292967][    C3]  ksys_write (fs/read_write.c:739)
[ 6612.292969][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6612.292971][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6612.292973][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6612.292975][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6612.292977][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6612.292979][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6612.292980][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6612.292981][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6612.292982][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6612.292983][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6612.292983][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6612.292984][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6636.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6636.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6636.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6636.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 6636.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6636.385109][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:97 mm/kasan/generic.c:115 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 6636.385111][    C3] Code: 4c 89 d1 4c 89 d8 4c 29 d9 e9 19 ff ff ff 48 85 c9 74 8c 4c 01 c9 eb 1b 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 48 83 c0 01 <48> 39 c8 0f 84 6c ff ff ff 80 38 00 74 ee e9 47 ff ff ff b8 01 00
All code
========
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 89 d8             	mov    %r11,%rax
   6:	4c 29 d9             	sub    %r11,%rcx
   9:	e9 19 ff ff ff       	jmp    0xffffffffffffff27
   e:	48 85 c9             	test   %rcx,%rcx
  11:	74 8c                	je     0xffffffffffffff9f
  13:	4c 01 c9             	add    %r9,%rcx
  16:	eb 1b                	jmp    0x33
  18:	0f 1f 00             	nopl   (%rax)
  1b:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  22:	00 00 00 00 
  26:	48 83 c0 01          	add    $0x1,%rax
  2a:*	48 39 c8             	cmp    %rcx,%rax		<-- trapping instruction
  2d:	0f 84 6c ff ff ff    	je     0xffffffffffffff9f
  33:	80 38 00             	cmpb   $0x0,(%rax)
  36:	74 ee                	je     0x26
  38:	e9 47 ff ff ff       	jmp    0xffffffffffffff84
  3d:	b8                   	.byte 0xb8
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 39 c8             	cmp    %rcx,%rax
   3:	0f 84 6c ff ff ff    	je     0xffffffffffffff75
   9:	80 38 00             	cmpb   $0x0,(%rax)
   c:	74 ee                	je     0xfffffffffffffffc
   e:	e9 47 ff ff ff       	jmp    0xffffffffffffff5a
  13:	b8                   	.byte 0xb8
  14:	01 00                	add    %eax,(%rax)
[ 6636.385112][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000286
[ 6636.385114][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: ffe21c000221716a
[ 6636.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6636.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6636.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6636.385117][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 6636.385119][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6636.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6636.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6636.385123][    C3] PKRU: 55555554
[ 6636.385124][    C3] Call Trace:
[ 6636.385126][    C3]  <TASK>
[ 6636.385128][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 6636.385131][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6636.385133][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6636.385135][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6636.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6636.385140][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6636.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6636.385144][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6636.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6636.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6636.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6636.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6636.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6636.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6636.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6636.385162][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6636.385164][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6636.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6636.385168][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6636.385170][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6636.385172][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6636.385174][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6636.385177][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6636.385180][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6636.385181][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6636.385183][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6636.385185][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6636.385186][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6636.385188][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6636.385190][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6636.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6636.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6636.385195][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6636.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6636.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6636.385200][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6636.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6636.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6636.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6636.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6636.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6636.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 6636.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 6636.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6636.385216][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6636.385218][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6636.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6636.385223][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6636.385225][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6636.385226][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6636.385227][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6636.385228][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6636.385228][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6636.385229][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6636.385230][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6664.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6664.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6664.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6664.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 6664.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6664.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6664.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6664.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6664.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6664.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6664.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6664.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6664.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6664.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6664.385113][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6664.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6664.385115][    C3] PKRU: 55555554
[ 6664.385115][    C3] Call Trace:
[ 6664.385117][    C3]  <TASK>
[ 6664.385119][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6664.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6664.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6664.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6664.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6664.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6664.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6664.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6664.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6664.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6664.385142][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6664.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6664.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6664.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6664.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6664.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6664.385155][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6664.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6664.385159][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6664.385161][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6664.385163][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6664.385166][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6664.385168][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6664.385170][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6664.385172][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6664.385173][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6664.385174][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6664.385176][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6664.385178][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6664.385180][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6664.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6664.385184][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6664.385185][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6664.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6664.385188][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6664.385190][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6664.385192][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6664.385194][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6664.385195][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6664.385197][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6664.385199][    C3]  vfs_write (fs/read_write.c:686)
[ 6664.385201][    C3]  ksys_write (fs/read_write.c:739)
[ 6664.385203][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6664.385205][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6664.385207][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6664.385210][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6664.385211][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6664.385213][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6664.385214][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6664.385215][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6664.385216][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6664.385217][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6664.385217][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6664.385218][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6664.967070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6664.967232][    C3] rcu: 3-....: (5717957 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2115089
| [ 6664.967513][    C3] rcu: (t=5720275 jiffies g=527745 q=112998 ncpus=4)
| [ 6664.967650][    C3] Tainted: [L]=SOFTLOCKUP
[ 6664.967650][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6664.967651][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6664.967653][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6664.967654][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6664.967655][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6664.967656][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6664.967656][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6664.967657][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6664.967658][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6664.967659][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6664.967661][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6664.967662][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6664.967663][    C3] PKRU: 55555554
[ 6664.967663][    C3] Call Trace:
[ 6664.967664][    C3]  <TASK>
[ 6664.967665][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6664.967666][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6664.967669][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6664.967671][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6664.967673][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6664.967675][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6664.967677][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6664.967679][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6664.967682][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6664.967684][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6664.967686][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6664.967689][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6664.967691][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6664.967692][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6664.967694][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6664.967696][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6664.967699][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6664.967701][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6664.967703][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6664.967705][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6664.967706][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6664.967709][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6664.967711][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6664.967713][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6664.967715][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6664.967716][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6664.967717][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6664.967719][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6664.967721][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6664.967722][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6664.967725][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6664.967726][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6664.967728][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6664.967729][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6664.967731][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6664.967733][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6664.967734][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6664.967736][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6664.967738][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6664.967739][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6664.967742][    C3]  vfs_write (fs/read_write.c:686)
[ 6664.967744][    C3]  ksys_write (fs/read_write.c:739)
[ 6664.967745][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6664.967747][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6664.967749][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6664.967751][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6664.967753][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6664.967754][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6664.967755][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6664.967756][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6664.967757][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6664.967758][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6664.967758][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6664.967759][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6692.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6692.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6692.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6692.385098][    C3] Tainted: [L]=SOFTLOCKUP
[ 6692.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6692.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6692.385102][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6692.385103][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6692.385104][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6692.385105][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6692.385106][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6692.385106][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6692.385107][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6692.385109][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6692.385112][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6692.385112][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6692.385113][    C3] PKRU: 55555554
[ 6692.385114][    C3] Call Trace:
[ 6692.385116][    C3]  <TASK>
[ 6692.385118][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6692.385120][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6692.385122][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6692.385124][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6692.385127][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6692.385128][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6692.385131][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6692.385133][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6692.385136][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6692.385138][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6692.385140][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6692.385143][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6692.385145][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6692.385146][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6692.385148][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6692.385150][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6692.385153][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6692.385155][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6692.385157][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6692.385159][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6692.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6692.385164][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6692.385166][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6692.385167][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6692.385169][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6692.385171][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6692.385172][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6692.385174][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6692.385176][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6692.385177][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6692.385179][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6692.385181][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6692.385182][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6692.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6692.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6692.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6692.385189][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6692.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6692.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6692.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6692.385196][    C3]  vfs_write (fs/read_write.c:686)
[ 6692.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 6692.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6692.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6692.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6692.385207][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6692.385209][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6692.385210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6692.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6692.385213][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6692.385213][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6692.385214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6692.385215][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6692.385215][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6710.596498][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6710.596710][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6710.596875][    C3] NMI backtrace for cpu 3
| [ 6710.596881][    C3] Tainted: [L]=SOFTLOCKUP
[ 6710.596882][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6710.596882][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6710.596885][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6710.596886][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6710.596888][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6710.596889][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6710.596889][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6710.596890][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6710.596891][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6710.596893][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6710.596896][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6710.596896][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6710.596897][    C3] PKRU: 55555554
[ 6710.596898][    C3] Call Trace:
[ 6710.596900][    C3]  <TASK>
[ 6710.596901][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6710.596903][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6710.596905][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6710.596908][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6710.596910][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6710.596912][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6710.596914][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6710.596916][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6710.596919][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6710.596921][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6710.596928][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6710.596930][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6710.596932][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6710.596934][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6710.596936][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6710.596938][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6710.596941][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6710.596942][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6710.596944][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6710.596946][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6710.596948][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6710.596951][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6710.596953][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6710.596955][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6710.596957][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6710.596958][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6710.596959][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6710.596961][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6710.596963][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6710.596965][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6710.596967][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6710.596969][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6710.596970][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6710.596972][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6710.596974][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6710.596975][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6710.596977][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6710.596979][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6710.596981][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6710.596982][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6710.596984][    C3]  vfs_write (fs/read_write.c:686)
[ 6710.596986][    C3]  ksys_write (fs/read_write.c:739)
[ 6710.596988][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6710.596990][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6710.596992][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6710.596995][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6710.596997][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6710.596998][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6710.596999][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6710.597000][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6710.597001][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6710.597002][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6710.597003][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6710.597004][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6736.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6736.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6736.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6736.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 6736.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6736.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6736.385111][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6736.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6736.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6736.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6736.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6736.385126][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6736.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6736.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6736.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6736.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6736.385133][    C3] PKRU: 55555554
[ 6736.385133][    C3] Call Trace:
[ 6736.385135][    C3]  <TASK>
[ 6736.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6736.385140][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6736.385142][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6736.385144][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6736.385147][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6736.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6736.385151][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6736.385153][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6736.385156][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6736.385158][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6736.385160][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6736.385163][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6736.385165][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6736.385166][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6736.385168][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6736.385170][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6736.385173][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6736.385175][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6736.385177][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6736.385179][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6736.385181][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6736.385184][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6736.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6736.385188][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6736.385190][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6736.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6736.385193][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6736.385195][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6736.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6736.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6736.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6736.385202][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6736.385203][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6736.385205][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6736.385207][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6736.385209][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6736.385210][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6736.385212][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6736.385214][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6736.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6736.385218][    C3]  vfs_write (fs/read_write.c:686)
[ 6736.385220][    C3]  ksys_write (fs/read_write.c:739)
[ 6736.385222][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6736.385223][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6736.385225][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6736.385228][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6736.385230][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6736.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6736.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6736.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6736.385235][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6736.385236][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6736.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6736.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6742.971071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6742.971263][    C3] rcu: 3-....: (5795929 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2145975
| [ 6742.971479][    C3] rcu: (t=5798279 jiffies g=527745 q=114495 ncpus=4)
| [ 6742.971661][    C3] Tainted: [L]=SOFTLOCKUP
[ 6742.971661][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6742.971662][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6742.971665][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6742.971666][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6742.971667][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6742.971668][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6742.971669][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6742.971670][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6742.971670][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6742.971672][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6742.971674][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6742.971675][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6742.971676][    C3] PKRU: 55555554
[ 6742.971677][    C3] Call Trace:
[ 6742.971677][    C3]  <TASK>
[ 6742.971678][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6742.971680][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6742.971682][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6742.971684][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6742.971687][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6742.971688][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6742.971691][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6742.971693][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6742.971696][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6742.971697][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6742.971700][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6742.971702][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6742.971704][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6742.971706][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6742.971708][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6742.971710][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6742.971713][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6742.971714][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6742.971717][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6742.971719][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6742.971720][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6742.971723][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6742.971725][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6742.971727][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6742.971729][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6742.971731][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6742.971732][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6742.971734][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6742.971735][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6742.971737][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6742.971739][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6742.971741][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6742.971742][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6742.971744][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6742.971745][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6742.971747][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6742.971749][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6742.971750][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6742.971752][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6742.971753][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6742.971756][    C3]  vfs_write (fs/read_write.c:686)
[ 6742.971758][    C3]  ksys_write (fs/read_write.c:739)
[ 6742.971760][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6742.971761][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6742.971764][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6742.971766][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6742.971767][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6742.971768][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6742.971769][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6742.971770][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6742.971771][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6742.971772][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6742.971773][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6742.971773][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6768.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6768.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6768.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6768.385098][    C3] Tainted: [L]=SOFTLOCKUP
[ 6768.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6768.385099][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6768.385102][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6768.385103][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6768.385104][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6768.385105][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6768.385106][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6768.385107][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6768.385107][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6768.385109][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6768.385112][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6768.385113][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6768.385113][    C3] PKRU: 55555554
[ 6768.385114][    C3] Call Trace:
[ 6768.385116][    C3]  <TASK>
[ 6768.385118][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6768.385120][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6768.385122][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6768.385124][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6768.385126][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6768.385128][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6768.385130][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6768.385132][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6768.385135][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6768.385137][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6768.385139][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6768.385142][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6768.385144][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6768.385146][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6768.385148][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6768.385150][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6768.385152][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6768.385154][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6768.385156][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6768.385158][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6768.385160][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6768.385163][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6768.385165][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6768.385167][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6768.385169][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6768.385170][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6768.385171][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6768.385173][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6768.385175][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6768.385176][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6768.385179][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6768.385180][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6768.385182][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6768.385183][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6768.385185][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6768.385187][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6768.385189][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6768.385190][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6768.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6768.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6768.385196][    C3]  vfs_write (fs/read_write.c:686)
[ 6768.385198][    C3]  ksys_write (fs/read_write.c:739)
[ 6768.385200][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6768.385201][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6768.385203][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6768.385206][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6768.385208][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6768.385209][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6768.385210][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6768.385211][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6768.385212][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6768.385213][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6768.385214][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6768.385214][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6796.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6796.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6796.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6796.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 6796.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6796.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6796.385102][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6796.385103][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6796.385104][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6796.385105][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6796.385106][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6796.385107][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6796.385107][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6796.385109][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6796.385112][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6796.385113][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6796.385113][    C3] PKRU: 55555554
[ 6796.385114][    C3] Call Trace:
[ 6796.385116][    C3]  <TASK>
[ 6796.385118][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6796.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6796.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6796.385125][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6796.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6796.385129][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6796.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6796.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6796.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6796.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6796.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6796.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6796.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6796.385147][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6796.385149][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6796.385151][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6796.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6796.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6796.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6796.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6796.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6796.385164][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6796.385166][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6796.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6796.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6796.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6796.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6796.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6796.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6796.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6796.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6796.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6796.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6796.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6796.385187][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6796.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6796.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6796.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6796.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6796.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6796.385197][    C3]  vfs_write (fs/read_write.c:686)
[ 6796.385199][    C3]  ksys_write (fs/read_write.c:739)
[ 6796.385201][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6796.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6796.385205][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6796.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6796.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6796.385211][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6796.385212][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6796.385213][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6796.385214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6796.385215][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6796.385215][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6796.385216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6808.900516][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6808.900694][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6808.900858][    C3] NMI backtrace for cpu 3
| [ 6808.900864][    C3] Tainted: [L]=SOFTLOCKUP
[ 6808.900864][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6808.900865][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6808.900868][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6808.900870][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6808.900871][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6808.900872][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6808.900873][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6808.900874][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6808.900874][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6808.900877][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6808.900879][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6808.900880][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6808.900881][    C3] PKRU: 55555554
[ 6808.900882][    C3] Call Trace:
[ 6808.900884][    C3]  <TASK>
[ 6808.900885][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6808.900888][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6808.900890][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6808.900892][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6808.900895][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6808.900896][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6808.900899][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6808.900901][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6808.900904][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6808.900905][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6808.900908][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6808.900910][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6808.900913][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6808.900914][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6808.900916][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6808.900918][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6808.900921][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6808.900923][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6808.900925][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6808.900927][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6808.900928][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6808.900931][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6808.900934][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6808.900935][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6808.900938][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6808.900939][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6808.900940][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6808.900942][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6808.900944][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6808.900945][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6808.900948][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6808.900949][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6808.900951][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6808.900953][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6808.900954][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6808.900956][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6808.900958][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6808.900960][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6808.900961][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6808.900963][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6808.900966][    C3]  vfs_write (fs/read_write.c:686)
[ 6808.900968][    C3]  ksys_write (fs/read_write.c:739)
[ 6808.900969][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6808.900971][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6808.900973][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6808.900976][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6808.900978][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6808.900979][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6808.900980][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6808.900981][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6808.900982][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6808.900983][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6808.900984][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6808.900984][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6820.975072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6820.975297][    C3] rcu: 3-....: (5873902 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2176870
| [ 6820.975570][    C3] rcu: (t=5876283 jiffies g=527745 q=115992 ncpus=4)
| [ 6820.975706][    C3] Tainted: [L]=SOFTLOCKUP
[ 6820.975706][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6820.975708][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6820.975712][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6820.975713][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6820.975715][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6820.975716][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6820.975717][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6820.975717][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6820.975718][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6820.975720][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6820.975723][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6820.975724][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6820.975724][    C3] PKRU: 55555554
[ 6820.975725][    C3] Call Trace:
[ 6820.975726][    C3]  <TASK>
[ 6820.975727][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6820.975729][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6820.975731][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6820.975734][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6820.975736][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6820.975737][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6820.975740][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6820.975742][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6820.975745][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6820.975746][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6820.975752][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6820.975754][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6820.975757][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6820.975758][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6820.975760][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6820.975762][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6820.975765][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6820.975767][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6820.975769][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6820.975771][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6820.975772][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6820.975775][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6820.975778][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6820.975779][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6820.975781][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6820.975783][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6820.975784][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6820.975786][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6820.975788][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6820.975789][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6820.975792][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6820.975793][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6820.975795][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6820.975797][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6820.975798][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6820.975800][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6820.975801][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6820.975803][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6820.975805][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6820.975806][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6820.975809][    C3]  vfs_write (fs/read_write.c:686)
[ 6820.975811][    C3]  ksys_write (fs/read_write.c:739)
[ 6820.975812][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6820.975814][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6820.975816][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6820.975819][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6820.975820][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6820.975822][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6820.975823][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6820.975824][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6820.975825][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6820.975826][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6820.975826][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6820.975827][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6848.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6848.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6848.385097][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6848.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 6848.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6848.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6848.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6848.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6848.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6848.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6848.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6848.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6848.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6848.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6848.385116][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6848.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6848.385117][    C3] PKRU: 55555554
[ 6848.385118][    C3] Call Trace:
[ 6848.385120][    C3]  <TASK>
[ 6848.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6848.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6848.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6848.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6848.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6848.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6848.385136][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6848.385138][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6848.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6848.385143][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6848.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6848.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6848.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6848.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6848.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6848.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6848.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6848.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6848.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6848.385164][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6848.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6848.385169][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6848.385171][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6848.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6848.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6848.385176][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6848.385177][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6848.385179][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6848.385181][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6848.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6848.385185][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6848.385186][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6848.385188][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6848.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6848.385191][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6848.385193][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6848.385195][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6848.385197][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6848.385198][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6848.385200][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6848.385202][    C3]  vfs_write (fs/read_write.c:686)
[ 6848.385204][    C3]  ksys_write (fs/read_write.c:739)
[ 6848.385206][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6848.385208][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6848.385210][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6848.385212][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6848.385215][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6848.385216][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6848.385217][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6848.385218][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6848.385219][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6848.385220][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6848.385220][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6848.385221][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6876.385091][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6876.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6876.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6876.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 6876.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6876.385102][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6876.385104][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6876.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6876.385107][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6876.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6876.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6876.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6876.385110][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6876.385112][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6876.385115][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6876.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6876.385117][    C3] PKRU: 55555554
[ 6876.385117][    C3] Call Trace:
[ 6876.385119][    C3]  <TASK>
[ 6876.385121][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6876.385124][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6876.385126][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6876.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6876.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6876.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6876.385135][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6876.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6876.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6876.385142][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6876.385144][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6876.385147][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6876.385149][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6876.385150][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6876.385153][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6876.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6876.385157][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6876.385159][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6876.385161][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6876.385163][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6876.385165][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6876.385168][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6876.385170][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6876.385172][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6876.385174][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6876.385175][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6876.385176][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6876.385178][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6876.385180][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6876.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6876.385184][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6876.385189][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6876.385190][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6876.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6876.385194][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6876.385195][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6876.385197][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6876.385199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6876.385200][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6876.385202][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6876.385204][    C3]  vfs_write (fs/read_write.c:686)
[ 6876.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 6876.385208][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6876.385210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6876.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6876.385215][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6876.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6876.385219][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6876.385220][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6876.385222][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6876.385223][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6876.385223][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6876.385224][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6876.385225][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6898.979072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6898.979289][    C3] rcu: 3-....: (5951882 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2208185
| [ 6898.979558][    C3] rcu: (t=5954287 jiffies g=527745 q=117129 ncpus=4)
| [ 6898.979692][    C3] Tainted: [L]=SOFTLOCKUP
[ 6898.979693][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6898.979693][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6898.979696][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6898.979697][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6898.979699][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6898.979700][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6898.979700][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6898.979701][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6898.979702][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6898.979703][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6898.979706][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6898.979707][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6898.979708][    C3] PKRU: 55555554
[ 6898.979709][    C3] Call Trace:
[ 6898.979709][    C3]  <TASK>
[ 6898.979710][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6898.979713][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6898.979715][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6898.979717][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6898.979719][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6898.979721][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6898.979724][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6898.979726][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6898.979728][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6898.979730][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6898.979732][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6898.979735][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6898.979737][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6898.979739][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6898.979741][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6898.979743][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6898.979745][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6898.979747][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6898.979749][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6898.979751][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6898.979753][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6898.979756][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6898.979758][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6898.979760][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6898.979762][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6898.979763][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6898.979765][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6898.979767][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6898.979768][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6898.979769][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6898.979772][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6898.979773][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6898.979775][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6898.979777][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6898.979778][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6898.979780][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6898.979782][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6898.979783][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6898.979785][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6898.979787][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6898.979789][    C3]  vfs_write (fs/read_write.c:686)
[ 6898.979791][    C3]  ksys_write (fs/read_write.c:739)
[ 6898.979793][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6898.979794][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6898.979797][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6898.979799][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6898.979801][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6898.979802][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6898.979803][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6898.979804][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6898.979805][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6898.979806][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6898.979806][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6898.979807][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6907.205517][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 6907.205686][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 6907.205839][    C3] NMI backtrace for cpu 3
| [ 6907.205844][    C3] Tainted: [L]=SOFTLOCKUP
[ 6907.205845][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6907.205846][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6907.205848][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6907.205850][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6907.205851][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6907.205852][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6907.205853][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6907.205853][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6907.205854][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6907.205856][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6907.205858][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6907.205859][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6907.205860][    C3] PKRU: 55555554
[ 6907.205860][    C3] Call Trace:
[ 6907.205862][    C3]  <TASK>
[ 6907.205864][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6907.205866][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6907.205868][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6907.205870][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6907.205872][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6907.205874][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6907.205877][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6907.205879][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6907.205882][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6907.205883][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6907.205885][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6907.205888][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6907.205890][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6907.205892][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6907.205894][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6907.205896][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6907.205898][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6907.205900][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6907.205902][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6907.205904][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6907.205906][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6907.205909][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6907.205911][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6907.205913][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6907.205915][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6907.205916][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6907.205918][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6907.205919][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6907.205921][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6907.205922][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6907.205925][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6907.205926][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6907.205928][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6907.205930][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6907.205931][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6907.205933][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6907.205934][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6907.205936][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6907.205938][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6907.205939][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6907.205941][    C3]  vfs_write (fs/read_write.c:686)
[ 6907.205944][    C3]  ksys_write (fs/read_write.c:739)
[ 6907.205945][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6907.205947][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6907.205949][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6907.205952][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6907.205954][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6907.205955][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6907.205956][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6907.205958][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6907.205958][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6907.205959][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6907.205960][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6907.205960][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6932.385100][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6932.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6932.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6932.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 6932.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6932.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6932.385113][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6932.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6932.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6932.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6932.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6932.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6932.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6932.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6932.385124][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6932.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6932.385125][    C3] PKRU: 55555554
[ 6932.385126][    C3] Call Trace:
[ 6932.385128][    C3]  <TASK>
[ 6932.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6932.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6932.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6932.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6932.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6932.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6932.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6932.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6932.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6932.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6932.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6932.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6932.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6932.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6932.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6932.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6932.385165][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6932.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6932.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6932.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6932.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6932.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6932.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6932.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6932.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6932.385183][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6932.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6932.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6932.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6932.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6932.385192][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6932.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6932.385195][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6932.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6932.385199][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6932.385201][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6932.385202][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6932.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6932.385206][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6932.385207][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6932.385210][    C3]  vfs_write (fs/read_write.c:686)
[ 6932.385212][    C3]  ksys_write (fs/read_write.c:739)
[ 6932.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6932.385215][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6932.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6932.385220][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6932.385222][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6932.385224][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6932.385225][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6932.385226][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6932.385226][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6932.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6932.385228][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6932.385228][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6960.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 6960.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 6960.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 6960.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 6960.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6960.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6960.385102][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6960.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6960.385105][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6960.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6960.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6960.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6960.385108][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6960.385110][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6960.385113][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6960.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6960.385115][    C3] PKRU: 55555554
[ 6960.385115][    C3] Call Trace:
[ 6960.385117][    C3]  <TASK>
[ 6960.385119][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6960.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6960.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6960.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6960.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6960.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6960.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6960.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6960.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6960.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6960.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6960.385143][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6960.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6960.385147][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6960.385149][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6960.385151][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6960.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6960.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6960.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6960.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6960.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6960.385164][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6960.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6960.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6960.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6960.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6960.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6960.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6960.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6960.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6960.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6960.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6960.385184][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6960.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6960.385187][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6960.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6960.385191][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6960.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6960.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6960.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6960.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 6960.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 6960.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6960.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6960.385205][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6960.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6960.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6960.385211][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6960.385212][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6960.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6960.385214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6960.385215][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6960.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6960.385216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 6976.983072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 6976.983291][    C3] rcu: 3-....: (6029855 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2239132
| [ 6976.983512][    C3] rcu: (t=6032291 jiffies g=527745 q=118626 ncpus=4)
| [ 6976.983697][    C3] Tainted: [L]=SOFTLOCKUP
[ 6976.983698][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 6976.983699][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 6976.983702][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 6976.983703][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 6976.983705][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 6976.983706][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 6976.983706][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 6976.983707][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 6976.983708][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 6976.983710][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 6976.983712][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6976.983713][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 6976.983714][    C3] PKRU: 55555554
[ 6976.983714][    C3] Call Trace:
[ 6976.983715][    C3]  <TASK>
[ 6976.983716][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 6976.983718][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 6976.983720][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 6976.983723][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 6976.983725][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 6976.983727][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6976.983729][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 6976.983731][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 6976.983734][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 6976.983736][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 6976.983738][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 6976.983741][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 6976.983743][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 6976.983745][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 6976.983747][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 6976.983749][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 6976.983751][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 6976.983753][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6976.983755][    C3]  ? release_sock (net/core/sock.c:3794)
[ 6976.983757][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 6976.983759][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 6976.983762][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6976.983764][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 6976.983766][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 6976.983768][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 6976.983769][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6976.983770][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 6976.983772][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 6976.983774][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 6976.983775][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6976.983778][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 6976.983779][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 6976.983781][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 6976.983782][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 6976.983784][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 6976.983785][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 6976.983787][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 6976.983789][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 6976.983790][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 6976.983792][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 6976.983794][    C3]  vfs_write (fs/read_write.c:686)
[ 6976.983796][    C3]  ksys_write (fs/read_write.c:739)
[ 6976.983798][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 6976.983800][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 6976.983802][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 6976.983804][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 6976.983806][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 6976.983807][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 6976.983808][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 6976.983809][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 6976.983810][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 6976.983811][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 6976.983811][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 6976.983812][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7004.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7004.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7004.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7004.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 7004.385105][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7004.385106][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7004.385108][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7004.385110][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7004.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7004.385112][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7004.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7004.385114][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7004.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7004.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7004.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7004.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7004.385122][    C3] PKRU: 55555554
[ 7004.385123][    C3] Call Trace:
[ 7004.385125][    C3]  <TASK>
[ 7004.385128][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7004.385130][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7004.385132][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7004.385135][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7004.385137][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7004.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7004.385141][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7004.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7004.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7004.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7004.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7004.385153][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7004.385155][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7004.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7004.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7004.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7004.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7004.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7004.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7004.385169][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7004.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7004.385174][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7004.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7004.385178][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7004.385180][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7004.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7004.385183][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7004.385185][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7004.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7004.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7004.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7004.385192][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7004.385194][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7004.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7004.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7004.385199][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7004.385201][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7004.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7004.385204][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7004.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7004.385208][    C3]  vfs_write (fs/read_write.c:686)
[ 7004.385210][    C3]  ksys_write (fs/read_write.c:739)
[ 7004.385212][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7004.385214][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7004.385216][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7004.385219][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7004.385221][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7004.385223][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7004.385225][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7004.385226][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7004.385227][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7004.385228][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7004.385229][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7004.385229][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7005.509532][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7005.509709][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7005.509863][    C3] NMI backtrace for cpu 3
| [ 7005.509868][    C3] Tainted: [L]=SOFTLOCKUP
[ 7005.509869][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7005.509870][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7005.509872][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7005.509873][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7005.509874][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7005.509875][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7005.509876][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7005.509877][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7005.509878][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7005.509879][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7005.509882][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7005.509882][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7005.509883][    C3] PKRU: 55555554
[ 7005.509884][    C3] Call Trace:
[ 7005.509885][    C3]  <TASK>
[ 7005.509886][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7005.509888][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7005.509890][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7005.509892][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7005.509894][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7005.509896][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7005.509899][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7005.509901][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7005.509904][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7005.509905][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7005.509908][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7005.509910][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7005.509913][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7005.509914][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7005.509916][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7005.509918][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7005.509921][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7005.509923][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7005.509925][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7005.509927][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7005.509928][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7005.509931][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7005.509933][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7005.509935][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7005.509937][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7005.509938][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7005.509940][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7005.509942][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7005.509943][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7005.509944][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7005.509947][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7005.509948][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7005.509950][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7005.509952][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7005.509953][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7005.509955][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7005.509956][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7005.509958][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7005.509960][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7005.509961][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7005.509964][    C3]  vfs_write (fs/read_write.c:686)
[ 7005.509966][    C3]  ksys_write (fs/read_write.c:739)
[ 7005.509968][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7005.509970][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7005.509972][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7005.509974][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7005.509975][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7005.509977][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7005.509978][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7005.509979][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7005.509980][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7005.509980][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7005.509981][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7005.509982][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7032.385100][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7032.385102][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7032.385104][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7032.385110][    C3] Tainted: [L]=SOFTLOCKUP
[ 7032.385111][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7032.385112][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7032.385115][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7032.385116][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7032.385118][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7032.385119][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7032.385119][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7032.385121][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7032.385121][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7032.385123][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7032.385126][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7032.385127][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7032.385128][    C3] PKRU: 55555554
[ 7032.385129][    C3] Call Trace:
[ 7032.385131][    C3]  <TASK>
[ 7032.385134][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7032.385136][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7032.385138][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7032.385141][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7032.385143][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7032.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7032.385147][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7032.385150][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7032.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7032.385154][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7032.385156][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7032.385159][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7032.385161][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7032.385163][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7032.385165][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7032.385167][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7032.385169][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7032.385171][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7032.385173][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7032.385175][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7032.385177][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7032.385180][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7032.385182][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7032.385184][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7032.385186][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7032.385188][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7032.385189][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7032.385191][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7032.385193][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7032.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7032.385197][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7032.385198][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7032.385200][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7032.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7032.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7032.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7032.385206][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7032.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7032.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7032.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7032.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 7032.385216][    C3]  ksys_write (fs/read_write.c:739)
[ 7032.385218][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7032.385219][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7032.385222][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7032.385224][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7032.385226][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7032.385228][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7032.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7032.385231][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7032.385231][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7032.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7032.385233][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7032.385234][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7054.987072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7054.987290][    C3] rcu: 3-....: (6107828 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2269608
| [ 7054.987559][    C3] rcu: (t=6110295 jiffies g=527745 q=120123 ncpus=4)
| [ 7054.987702][    C3] Tainted: [L]=SOFTLOCKUP
[ 7054.987703][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7054.987704][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7054.987707][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7054.987709][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7054.987711][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7054.987712][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7054.987713][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7054.987713][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7054.987714][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7054.987716][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7054.987719][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7054.987720][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7054.987721][    C3] PKRU: 55555554
[ 7054.987721][    C3] Call Trace:
[ 7054.987722][    C3]  <TASK>
[ 7054.987723][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7054.987725][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7054.987727][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7054.987730][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7054.987732][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7054.987734][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7054.987736][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7054.987738][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7054.987741][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7054.987743][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7054.987745][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7054.987747][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7054.987750][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7054.987751][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7054.987753][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7054.987755][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7054.987761][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7054.987763][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7054.987766][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7054.987768][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7054.987769][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7054.987772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7054.987774][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7054.987776][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7054.987778][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7054.987780][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7054.987781][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7054.987783][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7054.987785][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7054.987786][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7054.987788][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7054.987790][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7054.987791][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7054.987793][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7054.987795][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7054.987796][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7054.987798][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7054.987800][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7054.987801][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7054.987803][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7054.987805][    C3]  vfs_write (fs/read_write.c:686)
[ 7054.987807][    C3]  ksys_write (fs/read_write.c:739)
[ 7054.987809][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7054.987811][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7054.987813][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7054.987815][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7054.987817][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7054.987819][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7054.987820][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7054.987821][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7054.987822][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7054.987823][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7054.987823][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7054.987824][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7080.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7080.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7080.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7080.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 7080.385105][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7080.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7080.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7080.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7080.385112][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7080.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7080.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7080.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7080.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7080.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7080.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7080.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7080.385122][    C3] PKRU: 55555554
[ 7080.385123][    C3] Call Trace:
[ 7080.385125][    C3]  <TASK>
[ 7080.385127][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7080.385129][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7080.385131][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7080.385134][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7080.385136][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7080.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7080.385140][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7080.385143][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7080.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7080.385147][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7080.385149][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7080.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7080.385154][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7080.385156][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7080.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7080.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7080.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7080.385164][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7080.385166][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7080.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7080.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7080.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7080.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7080.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7080.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7080.385181][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7080.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7080.385184][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7080.385186][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7080.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7080.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7080.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7080.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7080.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7080.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7080.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7080.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7080.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7080.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7080.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7080.385207][    C3]  vfs_write (fs/read_write.c:686)
[ 7080.385209][    C3]  ksys_write (fs/read_write.c:739)
[ 7080.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7080.385212][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7080.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7080.385217][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7080.385219][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7080.385221][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7080.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7080.385224][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7080.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7080.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7080.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7080.385227][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7103.812555][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7103.812734][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7103.812902][    C3] NMI backtrace for cpu 3
| [ 7103.812921][    C3] Tainted: [L]=SOFTLOCKUP
[ 7103.812922][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7103.812924][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7103.812934][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7103.812937][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7103.812940][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7103.812942][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7103.812944][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7103.812945][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7103.812945][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7103.812948][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7103.812951][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7103.812952][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7103.812953][    C3] PKRU: 55555554
[ 7103.812954][    C3] Call Trace:
[ 7103.812958][    C3]  <TASK>
[ 7103.812962][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7103.812967][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7103.812969][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7103.812973][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7103.812977][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7103.812979][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7103.812983][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7103.812986][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7103.812990][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7103.812991][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7103.812994][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7103.812997][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7103.812999][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7103.813001][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7103.813004][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7103.813006][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7103.813010][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7103.813012][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7103.813014][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7103.813016][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7103.813018][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7103.813022][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7103.813025][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7103.813027][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7103.813030][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7103.813033][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7103.813035][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7103.813037][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7103.813040][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7103.813042][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7103.813044][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7103.813046][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7103.813048][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7103.813050][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7103.813052][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7103.813055][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7103.813056][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7103.813058][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7103.813060][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7103.813062][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7103.813064][    C3]  vfs_write (fs/read_write.c:686)
[ 7103.813066][    C3]  ksys_write (fs/read_write.c:739)
[ 7103.813071][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7103.813073][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7103.813076][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7103.813080][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7103.813083][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7103.813087][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7103.813089][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7103.813091][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7103.813092][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7103.813093][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7103.813093][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7103.813094][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7128.385110][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7128.385112][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7128.385115][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7128.385124][    C3] Tainted: [L]=SOFTLOCKUP
[ 7128.385125][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7128.385126][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 7128.385133][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 7128.385134][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 7128.385136][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 7128.385137][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7128.385138][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7128.385139][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7128.385140][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7128.385142][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7128.385145][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7128.385146][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7128.385147][    C3] PKRU: 55555554
[ 7128.385148][    C3] Call Trace:
[ 7128.385150][    C3]  <TASK>
[ 7128.385153][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 7128.385157][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7128.385161][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7128.385163][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7128.385167][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7128.385170][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7128.385172][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7128.385174][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7128.385177][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7128.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7128.385182][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7128.385185][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7128.385187][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7128.385189][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7128.385191][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7128.385193][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7128.385196][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7128.385200][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7128.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7128.385204][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7128.385206][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7128.385208][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7128.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7128.385215][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7128.385217][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7128.385220][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7128.385222][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7128.385224][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7128.385226][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7128.385229][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7128.385230][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7128.385232][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7128.385234][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7128.385236][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7128.385238][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7128.385240][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7128.385242][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7128.385244][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7128.385246][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7128.385247][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7128.385249][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7128.385252][    C3]  vfs_write (fs/read_write.c:686)
[ 7128.385254][    C3]  ksys_write (fs/read_write.c:739)
[ 7128.385256][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7128.385258][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7128.385260][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7128.385264][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7128.385267][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7128.385270][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7128.385271][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7128.385273][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7128.385274][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7128.385275][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7128.385276][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7128.385277][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7132.990072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7132.990261][    C3] rcu: 3-....: (6185799 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2300073
| [ 7132.990485][    C3] rcu: (t=6188298 jiffies g=527745 q=121623 ncpus=4)
| [ 7132.990670][    C3] Tainted: [L]=SOFTLOCKUP
[ 7132.990670][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7132.990671][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7132.990674][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7132.990676][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7132.990678][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7132.990678][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7132.990679][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7132.990680][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7132.990681][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7132.990683][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7132.990686][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7132.990686][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7132.990687][    C3] PKRU: 55555554
[ 7132.990688][    C3] Call Trace:
[ 7132.990689][    C3]  <TASK>
[ 7132.990690][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7132.990692][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7132.990694][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7132.990696][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7132.990699][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7132.990700][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7132.990703][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7132.990705][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7132.990708][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7132.990709][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7132.990712][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7132.990714][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7132.990716][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7132.990718][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7132.990720][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7132.990722][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7132.990725][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7132.990727][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7132.990729][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7132.990731][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7132.990733][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7132.990736][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7132.990738][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7132.990740][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7132.990742][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7132.990743][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7132.990745][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7132.990747][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7132.990749][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7132.990750][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7132.990753][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7132.990754][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7132.990756][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7132.990758][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7132.990759][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7132.990761][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7132.990763][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7132.990765][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7132.990766][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7132.990768][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7132.990770][    C3]  vfs_write (fs/read_write.c:686)
[ 7132.990772][    C3]  ksys_write (fs/read_write.c:739)
[ 7132.990774][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7132.990776][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7132.990779][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7132.990781][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7132.990783][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7132.990784][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7132.990786][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7132.990787][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7132.990788][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7132.990789][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7132.990790][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7132.990791][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7160.385112][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7160.385114][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7160.385117][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7160.385126][    C3] Tainted: [L]=SOFTLOCKUP
[ 7160.385127][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7160.385129][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7160.385132][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7160.385134][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7160.385137][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7160.385138][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7160.385139][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7160.385140][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7160.385141][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7160.385143][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7160.385147][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7160.385148][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7160.385149][    C3] PKRU: 55555554
[ 7160.385150][    C3] Call Trace:
[ 7160.385152][    C3]  <TASK>
[ 7160.385155][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7160.385160][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7160.385162][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7160.385166][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7160.385170][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7160.385172][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7160.385174][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7160.385177][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7160.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7160.385182][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7160.385184][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7160.385187][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7160.385190][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7160.385191][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7160.385194][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7160.385196][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7160.385200][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7160.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7160.385204][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7160.385207][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7160.385209][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7160.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7160.385215][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7160.385217][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7160.385221][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7160.385224][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7160.385225][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7160.385228][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7160.385230][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7160.385232][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7160.385234][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7160.385236][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7160.385239][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7160.385241][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7160.385242][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7160.385245][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7160.385247][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7160.385248][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7160.385250][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7160.385252][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7160.385254][    C3]  vfs_write (fs/read_write.c:686)
[ 7160.385257][    C3]  ksys_write (fs/read_write.c:739)
[ 7160.385259][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7160.385261][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7160.385263][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7160.385267][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7160.385271][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7160.385274][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7160.385276][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7160.385278][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7160.385279][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7160.385280][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7160.385280][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7160.385281][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7188.385101][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7188.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7188.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7188.385113][    C3] Tainted: [L]=SOFTLOCKUP
[ 7188.385114][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7188.385116][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7188.385119][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7188.385120][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7188.385122][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7188.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7188.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7188.385126][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7188.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7188.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7188.385131][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7188.385132][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7188.385133][    C3] PKRU: 55555554
[ 7188.385134][    C3] Call Trace:
[ 7188.385135][    C3]  <TASK>
[ 7188.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7188.385142][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7188.385144][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7188.385148][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7188.385152][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7188.385153][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7188.385156][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7188.385158][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7188.385162][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7188.385164][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7188.385166][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7188.385169][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7188.385171][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7188.385173][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7188.385175][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7188.385177][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7188.385182][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7188.385183][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7188.385186][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7188.385188][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7188.385190][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7188.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7188.385196][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7188.385198][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7188.385202][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7188.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7188.385207][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7188.385209][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7188.385212][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7188.385213][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7188.385216][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7188.385218][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7188.385220][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7188.385222][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7188.385224][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7188.385226][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7188.385228][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7188.385230][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7188.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7188.385233][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7188.385236][    C3]  vfs_write (fs/read_write.c:686)
[ 7188.385238][    C3]  ksys_write (fs/read_write.c:739)
[ 7188.385241][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7188.385242][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7188.385245][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7188.385248][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7188.385251][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7188.385254][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7188.385255][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7188.385257][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7188.385258][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7188.385259][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7188.385259][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7188.385260][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7202.116417][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7202.116593][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7202.116784][    C3] NMI backtrace for cpu 3
| [ 7202.116792][    C3] Tainted: [L]=SOFTLOCKUP
[ 7202.116793][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7202.116794][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7202.116797][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7202.116799][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7202.116801][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7202.116802][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7202.116803][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7202.116804][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7202.116805][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7202.116807][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7202.116810][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7202.116811][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7202.116812][    C3] PKRU: 55555554
[ 7202.116813][    C3] Call Trace:
[ 7202.116814][    C3]  <TASK>
[ 7202.116816][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7202.116819][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7202.116821][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7202.116823][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7202.116826][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7202.116827][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7202.116830][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7202.116832][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7202.116835][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7202.116837][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7202.116839][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7202.116842][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7202.116844][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7202.116845][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7202.116848][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7202.116849][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7202.116852][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7202.116854][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7202.116856][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7202.116858][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7202.116860][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7202.116863][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7202.116865][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7202.116867][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7202.116869][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7202.116870][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7202.116872][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7202.116874][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7202.116876][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7202.116877][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7202.116879][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7202.116881][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7202.116882][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7202.116884][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7202.116886][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7202.116887][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7202.116889][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7202.116891][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7202.116892][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7202.116894][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7202.116896][    C3]  vfs_write (fs/read_write.c:686)
[ 7202.116898][    C3]  ksys_write (fs/read_write.c:739)
[ 7202.116900][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7202.116902][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7202.116904][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7202.116907][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7202.116909][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7202.116911][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7202.116913][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7202.116915][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7202.116916][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7202.116916][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7202.116917][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7202.116918][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7210.993071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7210.993276][    C3] rcu: 3-....: (6263771 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2334329
| [ 7210.993550][    C3] rcu: (t=6266301 jiffies g=527745 q=123120 ncpus=4)
| [ 7210.993690][    C3] Tainted: [L]=SOFTLOCKUP
[ 7210.993691][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7210.993692][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:201)
[ 7210.993696][    C3] Code: 48 39 c1 74 20 80 38 00 74 f2 b9 01 00 00 00 48 85 c0 74 2e 48 39 c3 75 19 45 89 f2 41 83 e2 07 44 3a 13 7d 0d b9 01 00 00 00 <5b> 41 5e 89 c8 41 5f c3 4c 89 c1 0f b6 d2 e8 df e9 ff ff 83 f0 01
All code
========
   0:	48 39 c1             	cmp    %rax,%rcx
   3:	74 20                	je     0x25
   5:	80 38 00             	cmpb   $0x0,(%rax)
   8:	74 f2                	je     0xfffffffffffffffc
   a:	b9 01 00 00 00       	mov    $0x1,%ecx
   f:	48 85 c0             	test   %rax,%rax
  12:	74 2e                	je     0x42
  14:	48 39 c3             	cmp    %rax,%rbx
  17:	75 19                	jne    0x32
  19:	45 89 f2             	mov    %r14d,%r10d
  1c:	41 83 e2 07          	and    $0x7,%r10d
  20:	44 3a 13             	cmp    (%rbx),%r10b
  23:	7d 0d                	jge    0x32
  25:	b9 01 00 00 00       	mov    $0x1,%ecx
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	41 5e                	pop    %r14
  2d:	89 c8                	mov    %ecx,%eax
  2f:	41 5f                	pop    %r15
  31:	c3                   	ret
  32:	4c 89 c1             	mov    %r8,%rcx
  35:	0f b6 d2             	movzbl %dl,%edx
  38:	e8 df e9 ff ff       	call   0xffffffffffffea1c
  3d:	83 f0 01             	xor    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	41 5e                	pop    %r14
   3:	89 c8                	mov    %ecx,%eax
   5:	41 5f                	pop    %r15
   7:	c3                   	ret
   8:	4c 89 c1             	mov    %r8,%rcx
   b:	0f b6 d2             	movzbl %dl,%edx
   e:	e8 df e9 ff ff       	call   0xffffffffffffe9f2
  13:	83 f0 01             	xor    $0x1,%eax
[ 7210.993698][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000246
[ 7210.993700][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: 0000000000000001
[ 7210.993701][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7210.993702][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7210.993703][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7210.993704][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 7210.993706][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7210.993708][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7210.993709][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7210.993711][    C3] PKRU: 55555554
[ 7210.993711][    C3] Call Trace:
[ 7210.993712][    C3]  <TASK>
[ 7210.993713][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 7210.993716][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7210.993718][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7210.993720][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7210.993723][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7210.993725][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7210.993727][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7210.993729][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7210.993731][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7210.993735][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7210.993737][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7210.993739][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7210.993742][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7210.993744][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7210.993746][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7210.993748][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7210.993750][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7210.993752][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7210.993754][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7210.993756][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7210.993758][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7210.993760][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7210.993763][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7210.993765][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7210.993767][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7210.993769][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7210.993770][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7210.993771][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7210.993774][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7210.993775][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7210.993777][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7210.993779][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7210.993781][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7210.993782][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7210.993784][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7210.993786][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7210.993788][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7210.993789][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7210.993791][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7210.993793][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7210.993794][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7210.993797][    C3]  vfs_write (fs/read_write.c:686)
[ 7210.993799][    C3]  ksys_write (fs/read_write.c:739)
[ 7210.993800][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7210.993802][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7210.993804][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7210.993807][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7210.993808][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7210.993810][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7210.993812][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7210.993814][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7210.993815][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7210.993816][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7210.993816][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7210.993817][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7236.385116][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7236.385118][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7236.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7236.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 7236.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7236.385134][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7236.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7236.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7236.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7236.385145][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7236.385146][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7236.385147][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7236.385148][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7236.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7236.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7236.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7236.385157][    C3] PKRU: 55555554
[ 7236.385158][    C3] Call Trace:
[ 7236.385162][    C3]  <TASK>
[ 7236.385165][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7236.385170][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7236.385172][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7236.385176][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7236.385181][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7236.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7236.385185][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7236.385189][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7236.385192][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7236.385194][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7236.385196][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7236.385199][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7236.385201][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7236.385203][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7236.385205][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7236.385208][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7236.385212][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7236.385214][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7236.385216][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7236.385218][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7236.385221][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7236.385224][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7236.385227][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7236.385229][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7236.385233][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7236.385235][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7236.385237][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7236.385239][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7236.385242][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7236.385243][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7236.385246][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7236.385248][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7236.385250][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7236.385252][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7236.385254][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7236.385257][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7236.385258][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7236.385260][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7236.385262][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7236.385264][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7236.385266][    C3]  vfs_write (fs/read_write.c:686)
[ 7236.385272][    C3]  ksys_write (fs/read_write.c:739)
[ 7236.385274][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7236.385276][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7236.385279][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7236.385283][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7236.385286][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7236.385290][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7236.385291][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7236.385293][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7236.385294][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7236.385295][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7236.385296][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7236.385297][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7264.385115][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7264.385117][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7264.385121][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7264.385130][    C3] Tainted: [L]=SOFTLOCKUP
[ 7264.385131][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7264.385133][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7264.385137][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7264.385139][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7264.385141][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7264.385143][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7264.385144][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7264.385145][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7264.385146][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7264.385149][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7264.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7264.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7264.385155][    C3] PKRU: 55555554
[ 7264.385156][    C3] Call Trace:
[ 7264.385159][    C3]  <TASK>
[ 7264.385163][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7264.385168][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7264.385170][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7264.385174][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7264.385178][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7264.385180][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7264.385183][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7264.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7264.385189][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7264.385190][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7264.385193][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7264.385196][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7264.385198][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7264.385200][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7264.385202][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7264.385204][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7264.385208][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7264.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7264.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7264.385215][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7264.385217][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7264.385220][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7264.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7264.385225][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7264.385229][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7264.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7264.385233][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7264.385235][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7264.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7264.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7264.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7264.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7264.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7264.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7264.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7264.385253][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7264.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7264.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7264.385258][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7264.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7264.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 7264.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 7264.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7264.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7264.385271][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7264.385274][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7264.385278][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7264.385282][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7264.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7264.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7264.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7264.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7264.385288][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7264.385289][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7288.997071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7288.997327][    C3] rcu: 3-....: (6341751 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2365987
| [ 7288.997569][    C3] rcu: (t=6344305 jiffies g=527745 q=124260 ncpus=4)
| [ 7288.997713][    C3] Tainted: [L]=SOFTLOCKUP
[ 7288.997714][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7288.997715][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 7288.997718][    C3] Code: 89 fc 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 5f 2f 52 fe 41 0f b6 45 00 41 38 c4 7c 08 84 c0 <0f> 85 30 06 00 00 8b 03 89 44 24 48 85 c0 0f 85 8d 03 00 00 48 89
All code
========
   0:	89 fc                	mov    %edi,%esp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	41 83 e4 07          	and    $0x7,%r12d
   a:	49 01 c5             	add    %rax,%r13
   d:	41 83 c4 03          	add    $0x3,%r12d
  11:	be 04 00 00 00       	mov    $0x4,%esi
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 5f 2f 52 fe       	call   0xfffffffffe522f7d
  1e:	41 0f b6 45 00       	movzbl 0x0(%r13),%eax
  23:	41 38 c4             	cmp    %al,%r12b
  26:	7c 08                	jl     0x30
  28:	84 c0                	test   %al,%al
  2a:*	0f 85 30 06 00 00    	jne    0x660		<-- trapping instruction
  30:	8b 03                	mov    (%rbx),%eax
  32:	89 44 24 48          	mov    %eax,0x48(%rsp)
  36:	85 c0                	test   %eax,%eax
  38:	0f 85 8d 03 00 00    	jne    0x3cb
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	0f 85 30 06 00 00    	jne    0x636
   6:	8b 03                	mov    (%rbx),%eax
   8:	89 44 24 48          	mov    %eax,0x48(%rsp)
   c:	85 c0                	test   %eax,%eax
   e:	0f 85 8d 03 00 00    	jne    0x3a1
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[ 7288.997719][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000246
[ 7288.997721][    C3] RAX: 0000000000000000 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7288.997723][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7288.997724][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7288.997724][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7288.997725][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7288.997727][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7288.997731][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7288.997732][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7288.997732][    C3] PKRU: 55555554
[ 7288.997733][    C3] Call Trace:
[ 7288.997734][    C3]  <TASK>
[ 7288.997735][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7288.997742][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7288.997744][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7288.997747][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7288.997749][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7288.997750][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7288.997753][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7288.997755][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7288.997758][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7288.997760][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7288.997762][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7288.997764][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7288.997766][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7288.997768][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7288.997770][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7288.997772][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7288.997775][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7288.997777][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7288.997779][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7288.997781][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7288.997782][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7288.997785][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7288.997787][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7288.997789][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7288.997791][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7288.997792][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7288.997794][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7288.997796][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7288.997797][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7288.997798][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7288.997801][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7288.997802][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7288.997804][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7288.997806][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7288.997807][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7288.997809][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7288.997810][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7288.997812][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7288.997814][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7288.997815][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7288.997818][    C3]  vfs_write (fs/read_write.c:686)
[ 7288.997820][    C3]  ksys_write (fs/read_write.c:739)
[ 7288.997821][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7288.997823][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7288.997825][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7288.997828][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7288.997829][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7288.997831][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7288.997832][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7288.997834][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7288.997835][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7288.997835][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7288.997836][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7288.997837][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7300.421455][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7300.421624][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7300.421819][    C3] NMI backtrace for cpu 3
| [ 7300.421826][    C3] Tainted: [L]=SOFTLOCKUP
[ 7300.421827][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7300.421828][    C3] RIP: 0010:__kasan_check_read (mm/kasan/shadow.c:30)
[ 7300.421833][    C3] Code: 8b 05 f4 df b4 03 49 8b 40 20 48 39 c7 72 0f 48 05 00 80 00 00 48 39 c7 0f 82 dc 0e 22 ff 90 0f 0b 90 c3 0f 1f 80 00 00 00 00 <f3> 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 8f f5 ff ff 0f 1f 40 00 66
All code
========
   0:	8b 05 f4 df b4 03    	mov    0x3b4dff4(%rip),%eax        # 0x3b4dffa
   6:	49 8b 40 20          	mov    0x20(%r8),%rax
   a:	48 39 c7             	cmp    %rax,%rdi
   d:	72 0f                	jb     0x1e
   f:	48 05 00 80 00 00    	add    $0x8000,%rax
  15:	48 39 c7             	cmp    %rax,%rdi
  18:	0f 82 dc 0e 22 ff    	jb     0xffffffffff220efa
  1e:	90                   	nop
  1f:	0f 0b                	ud2
  21:	90                   	nop
  22:	c3                   	ret
  23:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  2a:*	f3 0f 1e fa          	endbr64		<-- trapping instruction
  2e:	48 8b 0c 24          	mov    (%rsp),%rcx
  32:	89 f6                	mov    %esi,%esi
  34:	31 d2                	xor    %edx,%edx
  36:	e9 8f f5 ff ff       	jmp    0xfffffffffffff5ca
  3b:	0f 1f 40 00          	nopl   0x0(%rax)
  3f:	66                   	data16

Code starting with the faulting instruction
===========================================
   0:	f3 0f 1e fa          	endbr64
   4:	48 8b 0c 24          	mov    (%rsp),%rcx
   8:	89 f6                	mov    %esi,%esi
   a:	31 d2                	xor    %edx,%edx
   c:	e9 8f f5 ff ff       	jmp    0xfffffffffffff5a0
  11:	0f 1f 40 00          	nopl   0x0(%rax)
  15:	66                   	data16
[ 7300.421834][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[ 7300.421836][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7300.421837][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7300.421841][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7300.421842][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7300.421843][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7300.421845][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7300.421847][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7300.421848][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7300.421849][    C3] PKRU: 55555554
[ 7300.421850][    C3] Call Trace:
[ 7300.421852][    C3]  <TASK>
[ 7300.421853][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 7300.421856][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7300.421858][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7300.421860][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7300.421862][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7300.421865][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7300.421866][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7300.421869][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7300.421871][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7300.421874][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7300.421875][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7300.421878][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7300.421880][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7300.421882][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7300.421884][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7300.421886][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7300.421888][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7300.421890][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7300.421892][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7300.421894][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7300.421896][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7300.421898][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7300.421901][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7300.421903][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7300.421905][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7300.421907][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7300.421908][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7300.421909][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7300.421911][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7300.421913][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7300.421914][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7300.421917][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7300.421918][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7300.421920][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7300.421921][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7300.421923][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7300.421925][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7300.421926][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7300.421928][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7300.421930][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7300.421931][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7300.421934][    C3]  vfs_write (fs/read_write.c:686)
[ 7300.421936][    C3]  ksys_write (fs/read_write.c:739)
[ 7300.421937][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7300.421939][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7300.421941][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7300.421944][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7300.421946][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7300.421948][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7300.421949][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7300.421950][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7300.421951][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7300.421952][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7300.421952][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7300.421953][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7328.385105][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7328.385107][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7328.385108][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7328.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 7328.385116][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7328.385117][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 7328.385120][    C3] Code: 89 fc 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 5f 2f 52 fe 41 0f b6 45 00 41 38 c4 7c 08 84 c0 <0f> 85 30 06 00 00 8b 03 89 44 24 48 85 c0 0f 85 8d 03 00 00 48 89
All code
========
   0:	89 fc                	mov    %edi,%esp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	41 83 e4 07          	and    $0x7,%r12d
   a:	49 01 c5             	add    %rax,%r13
   d:	41 83 c4 03          	add    $0x3,%r12d
  11:	be 04 00 00 00       	mov    $0x4,%esi
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 5f 2f 52 fe       	call   0xfffffffffe522f7d
  1e:	41 0f b6 45 00       	movzbl 0x0(%r13),%eax
  23:	41 38 c4             	cmp    %al,%r12b
  26:	7c 08                	jl     0x30
  28:	84 c0                	test   %al,%al
  2a:*	0f 85 30 06 00 00    	jne    0x660		<-- trapping instruction
  30:	8b 03                	mov    (%rbx),%eax
  32:	89 44 24 48          	mov    %eax,0x48(%rsp)
  36:	85 c0                	test   %eax,%eax
  38:	0f 85 8d 03 00 00    	jne    0x3cb
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	0f 85 30 06 00 00    	jne    0x636
   6:	8b 03                	mov    (%rbx),%eax
   8:	89 44 24 48          	mov    %eax,0x48(%rsp)
   c:	85 c0                	test   %eax,%eax
   e:	0f 85 8d 03 00 00    	jne    0x3a1
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[ 7328.385121][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000246
[ 7328.385122][    C3] RAX: 0000000000000000 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7328.385123][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7328.385124][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7328.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7328.385125][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7328.385127][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7328.385130][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7328.385131][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7328.385132][    C3] PKRU: 55555554
[ 7328.385133][    C3] Call Trace:
[ 7328.385135][    C3]  <TASK>
[ 7328.385138][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7328.385140][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7328.385142][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7328.385145][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7328.385147][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7328.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7328.385151][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7328.385154][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7328.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7328.385158][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7328.385161][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7328.385164][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7328.385166][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7328.385167][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7328.385169][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7328.385171][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7328.385174][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7328.385176][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7328.385178][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7328.385180][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7328.385181][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7328.385184][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7328.385187][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7328.385189][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7328.385191][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7328.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7328.385193][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7328.385195][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7328.385197][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7328.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7328.385201][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7328.385203][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7328.385204][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7328.385206][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7328.385208][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7328.385210][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7328.385211][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7328.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7328.385215][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7328.385216][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7328.385219][    C3]  vfs_write (fs/read_write.c:686)
[ 7328.385221][    C3]  ksys_write (fs/read_write.c:739)
[ 7328.385223][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7328.385224][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7328.385227][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7328.385229][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7328.385232][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7328.385234][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7328.385235][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7328.385236][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7328.385237][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7328.385238][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7328.385239][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7328.385240][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7356.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7356.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7356.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7356.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 7356.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7356.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7356.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7356.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7356.385112][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7356.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7356.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7356.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7356.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7356.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7356.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7356.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7356.385123][    C3] PKRU: 55555554
[ 7356.385124][    C3] Call Trace:
[ 7356.385126][    C3]  <TASK>
[ 7356.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7356.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7356.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7356.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7356.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7356.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7356.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7356.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7356.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7356.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7356.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7356.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7356.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7356.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7356.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7356.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7356.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7356.385168][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7356.385170][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7356.385172][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7356.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7356.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7356.385179][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7356.385181][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7356.385183][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7356.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7356.385186][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7356.385188][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7356.385190][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7356.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7356.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7356.385195][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7356.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7356.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7356.385200][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7356.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7356.385204][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7356.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7356.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7356.385209][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7356.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 7356.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 7356.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7356.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7356.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7356.385222][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7356.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7356.385227][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7356.385228][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7356.385229][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7356.385230][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7356.385231][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7356.385232][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7356.385233][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7367.001072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7367.001274][    C3] rcu: 3-....: (6419724 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2397467
| [ 7367.001547][    C3] rcu: (t=6422309 jiffies g=527745 q=125760 ncpus=4)
| [ 7367.001685][    C3] Tainted: [L]=SOFTLOCKUP
[ 7367.001685][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7367.001686][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7367.001689][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7367.001691][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7367.001692][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7367.001693][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7367.001694][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7367.001695][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7367.001696][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7367.001698][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7367.001701][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7367.001701][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7367.001702][    C3] PKRU: 55555554
[ 7367.001703][    C3] Call Trace:
[ 7367.001704][    C3]  <TASK>
[ 7367.001704][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7367.001707][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7367.001709][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7367.001711][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7367.001713][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7367.001715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7367.001718][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7367.001720][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7367.001722][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7367.001724][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7367.001726][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7367.001729][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7367.001731][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7367.001733][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7367.001735][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7367.001736][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7367.001739][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7367.001741][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7367.001743][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7367.001745][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7367.001747][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7367.001750][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7367.001752][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7367.001754][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7367.001756][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7367.001757][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7367.001759][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7367.001761][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7367.001763][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7367.001764][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7367.001767][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7367.001768][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7367.001770][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7367.001772][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7367.001773][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7367.001775][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7367.001777][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7367.001778][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7367.001780][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7367.001782][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7367.001784][    C3]  vfs_write (fs/read_write.c:686)
[ 7367.001786][    C3]  ksys_write (fs/read_write.c:739)
[ 7367.001788][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7367.001790][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7367.001792][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7367.001795][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7367.001796][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7367.001798][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7367.001799][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7367.001800][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7367.001801][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7367.001802][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7367.001802][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7367.001803][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7392.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7392.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7392.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7392.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 7392.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7392.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7392.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7392.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7392.385112][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7392.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7392.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7392.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7392.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7392.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7392.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7392.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7392.385123][    C3] PKRU: 55555554
[ 7392.385123][    C3] Call Trace:
[ 7392.385126][    C3]  <TASK>
[ 7392.385128][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7392.385130][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7392.385132][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7392.385135][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7392.385137][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7392.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7392.385141][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7392.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7392.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7392.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7392.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7392.385153][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7392.385155][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7392.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7392.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7392.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7392.385163][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7392.385165][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7392.385167][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7392.385169][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7392.385171][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7392.385174][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7392.385176][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7392.385178][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7392.385180][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7392.385181][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7392.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7392.385184][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7392.385186][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7392.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7392.385190][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7392.385192][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7392.385193][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7392.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7392.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7392.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7392.385200][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7392.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7392.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7392.385205][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7392.385207][    C3]  vfs_write (fs/read_write.c:686)
[ 7392.385209][    C3]  ksys_write (fs/read_write.c:739)
[ 7392.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7392.385213][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7392.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7392.385218][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7392.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7392.385222][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7392.385223][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7392.385225][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7392.385226][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7392.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7392.385227][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7392.385228][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7398.724466][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7398.724679][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7398.724847][    C3] NMI backtrace for cpu 3
| [ 7398.724855][    C3] Tainted: [L]=SOFTLOCKUP
[ 7398.724855][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7398.724856][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7398.724859][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7398.724861][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7398.724862][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7398.724863][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7398.724864][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7398.724865][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7398.724866][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7398.724868][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7398.724871][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7398.724871][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7398.724873][    C3] PKRU: 55555554
[ 7398.724873][    C3] Call Trace:
[ 7398.724875][    C3]  <TASK>
[ 7398.724877][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7398.724880][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7398.724882][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7398.724884][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7398.724886][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7398.724888][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7398.724891][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7398.724893][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7398.724896][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7398.724898][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7398.724900][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7398.724903][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7398.724905][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7398.724907][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7398.724909][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7398.724911][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7398.724914][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7398.724916][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7398.724918][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7398.724920][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7398.724921][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7398.724924][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7398.724927][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7398.724928][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7398.724930][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7398.724932][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7398.724933][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7398.724935][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7398.724937][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7398.724938][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7398.724941][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7398.724942][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7398.724944][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7398.724946][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7398.724947][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7398.724949][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7398.724951][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7398.724953][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7398.724955][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7398.724957][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7398.724959][    C3]  vfs_write (fs/read_write.c:686)
[ 7398.724961][    C3]  ksys_write (fs/read_write.c:739)
[ 7398.724963][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7398.724965][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7398.724967][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7398.724970][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7398.724972][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7398.724974][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7398.724974][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7398.724976][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7398.724976][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7398.724977][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7398.724978][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7398.724979][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7424.385101][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7424.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7424.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7424.385111][    C3] Tainted: [L]=SOFTLOCKUP
[ 7424.385112][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7424.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7424.385116][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7424.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7424.385119][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7424.385120][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7424.385121][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7424.385122][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7424.385123][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7424.385125][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7424.385128][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7424.385129][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7424.385130][    C3] PKRU: 55555554
[ 7424.385130][    C3] Call Trace:
[ 7424.385133][    C3]  <TASK>
[ 7424.385136][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7424.385138][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7424.385140][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7424.385143][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7424.385145][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7424.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7424.385149][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7424.385152][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7424.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7424.385156][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7424.385159][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7424.385161][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7424.385163][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7424.385165][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7424.385167][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7424.385169][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7424.385172][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7424.385173][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7424.385176][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7424.385177][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7424.385179][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7424.385182][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7424.385184][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7424.385186][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7424.385188][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7424.385190][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7424.385191][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7424.385193][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7424.385195][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7424.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7424.385199][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7424.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7424.385202][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7424.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7424.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7424.385208][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7424.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7424.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7424.385213][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7424.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7424.385217][    C3]  vfs_write (fs/read_write.c:686)
[ 7424.385219][    C3]  ksys_write (fs/read_write.c:739)
[ 7424.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7424.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7424.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7424.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7424.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7424.385231][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7424.385232][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7424.385233][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7424.385234][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7424.385235][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7424.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7424.385236][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7445.005072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7445.005363][    C3] rcu: 3-....: (6497696 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2428329
| [ 7445.005615][    C3] rcu: (t=6500313 jiffies g=527745 q=127257 ncpus=4)
| [ 7445.005752][    C3] Tainted: [L]=SOFTLOCKUP
[ 7445.005753][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7445.005755][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7445.005758][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7445.005760][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7445.005762][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7445.005763][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7445.005764][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7445.005764][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7445.005765][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7445.005768][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7445.005771][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7445.005772][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7445.005773][    C3] PKRU: 55555554
[ 7445.005774][    C3] Call Trace:
[ 7445.005775][    C3]  <TASK>
[ 7445.005776][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7445.005778][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7445.005781][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7445.005783][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7445.005785][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7445.005787][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7445.005790][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7445.005792][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7445.005795][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7445.005797][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7445.005799][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7445.005802][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7445.005804][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7445.005805][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7445.005807][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7445.005809][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7445.005812][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7445.005814][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7445.005816][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7445.005818][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7445.005820][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7445.005823][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7445.005825][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7445.005827][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7445.005829][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7445.005831][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7445.005832][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7445.005835][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7445.005836][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7445.005837][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7445.005840][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7445.005842][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7445.005843][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7445.005845][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7445.005847][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7445.005849][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7445.005850][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7445.005852][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7445.005854][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7445.005855][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7445.005858][    C3]  vfs_write (fs/read_write.c:686)
[ 7445.005860][    C3]  ksys_write (fs/read_write.c:739)
[ 7445.005862][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7445.005864][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7445.005866][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7445.005868][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7445.005870][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7445.005872][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7445.005873][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7445.005875][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7445.005876][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7445.005877][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7445.005878][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7445.005879][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7472.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7472.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7472.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7472.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 7472.385105][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7472.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7472.385109][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7472.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7472.385112][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7472.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7472.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7472.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7472.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7472.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7472.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7472.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7472.385123][    C3] PKRU: 55555554
[ 7472.385123][    C3] Call Trace:
[ 7472.385127][    C3]  <TASK>
[ 7472.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7472.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7472.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7472.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7472.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7472.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7472.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7472.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7472.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7472.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7472.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7472.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7472.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7472.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7472.385160][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7472.385162][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7472.385165][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7472.385166][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7472.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7472.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7472.385172][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7472.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7472.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7472.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7472.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7472.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7472.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7472.385185][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7472.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7472.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7472.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7472.385192][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7472.385194][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7472.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7472.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7472.385199][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7472.385200][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7472.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7472.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7472.385205][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7472.385207][    C3]  vfs_write (fs/read_write.c:686)
[ 7472.385209][    C3]  ksys_write (fs/read_write.c:739)
[ 7472.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7472.385213][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7472.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7472.385217][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7472.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7472.385222][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7472.385223][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7472.385224][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7472.385225][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7472.385226][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7472.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7472.385227][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7497.028506][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7497.028716][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7497.028900][    C3] NMI backtrace for cpu 3
| [ 7497.028909][    C3] Tainted: [L]=SOFTLOCKUP
[ 7497.028910][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7497.028912][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7497.028915][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7497.028916][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7497.028918][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7497.028919][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7497.028920][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7497.028921][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7497.028922][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7497.028924][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7497.028927][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7497.028928][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7497.028929][    C3] PKRU: 55555554
[ 7497.028929][    C3] Call Trace:
[ 7497.028932][    C3]  <TASK>
[ 7497.028935][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7497.028937][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7497.028939][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7497.028942][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7497.028944][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7497.028946][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7497.028948][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7497.028951][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7497.028954][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7497.028955][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7497.028958][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7497.028960][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7497.028962][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7497.028964][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7497.028966][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7497.028968][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7497.028970][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7497.028972][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7497.028974][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7497.028976][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7497.028978][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7497.028981][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7497.028983][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7497.028985][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7497.028987][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7497.028988][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7497.028990][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7497.028992][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7497.028994][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7497.028995][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7497.028997][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7497.028999][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7497.029000][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7497.029002][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7497.029004][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7497.029006][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7497.029007][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7497.029009][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7497.029010][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7497.029012][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7497.029014][    C3]  vfs_write (fs/read_write.c:686)
[ 7497.029016][    C3]  ksys_write (fs/read_write.c:739)
[ 7497.029018][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7497.029020][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7497.029022][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7497.029024][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7497.029026][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7497.029028][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7497.029029][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7497.029031][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7497.029032][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7497.029032][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7497.029033][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7497.029034][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7523.008074][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7523.008399][    C3] rcu: 3-....: (6575676 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2458761
| [ 7523.008623][    C3] rcu: (t=6578316 jiffies g=527745 q=128364 ncpus=4)
| [ 7523.008762][    C3] Tainted: [L]=SOFTLOCKUP
[ 7523.008763][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7523.008764][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7523.008768][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7523.008770][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7523.008773][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7523.008774][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7523.008775][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7523.008775][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7523.008776][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7523.008778][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7523.008781][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7523.008783][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7523.008783][    C3] PKRU: 55555554
[ 7523.008784][    C3] Call Trace:
[ 7523.008785][    C3]  <TASK>
[ 7523.008786][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7523.008789][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7523.008791][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7523.008794][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7523.008796][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7523.008798][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7523.008800][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7523.008802][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7523.008805][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7523.008806][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7523.008809][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7523.008811][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7523.008813][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7523.008815][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7523.008817][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7523.008819][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7523.008822][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7523.008823][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7523.008826][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7523.008828][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7523.008829][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7523.008832][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7523.008834][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7523.008836][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7523.008838][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7523.008840][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7523.008841][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7523.008843][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7523.008845][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7523.008846][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7523.008848][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7523.008850][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7523.008852][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7523.008853][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7523.008855][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7523.008857][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7523.008858][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7523.008860][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7523.008861][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7523.008863][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7523.008865][    C3]  vfs_write (fs/read_write.c:686)
[ 7523.008867][    C3]  ksys_write (fs/read_write.c:739)
[ 7523.008869][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7523.008871][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7523.008873][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7523.008875][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7523.008877][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7523.008879][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7523.008880][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7523.008882][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7523.008883][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7523.008884][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7523.008884][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7523.008885][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7548.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7548.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7548.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7548.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 7548.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7548.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7548.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7548.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7548.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7548.385117][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7548.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7548.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7548.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7548.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7548.385124][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7548.385125][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7548.385126][    C3] PKRU: 55555554
[ 7548.385127][    C3] Call Trace:
[ 7548.385129][    C3]  <TASK>
[ 7548.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7548.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7548.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7548.385139][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7548.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7548.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7548.385145][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7548.385147][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7548.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7548.385152][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7548.385154][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7548.385157][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7548.385159][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7548.385161][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7548.385163][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7548.385165][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7548.385167][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7548.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7548.385171][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7548.385173][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7548.385175][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7548.385178][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7548.385180][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7548.385182][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7548.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7548.385185][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7548.385187][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7548.385189][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7548.385191][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7548.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7548.385194][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7548.385196][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7548.385198][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7548.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7548.385201][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7548.385203][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7548.385205][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7548.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7548.385208][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7548.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7548.385212][    C3]  vfs_write (fs/read_write.c:686)
[ 7548.385214][    C3]  ksys_write (fs/read_write.c:739)
[ 7548.385216][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7548.385218][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7548.385220][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7548.385223][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7548.385225][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7548.385227][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7548.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7548.385230][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7548.385231][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7548.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7548.385232][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7548.385233][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7576.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7576.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7576.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7576.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 7576.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7576.385107][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:182 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[ 7576.385111][    C3] Code: 00 00 00 f3 0f 1e fa 48 89 f2 be f8 00 00 00 e9 5f 91 ab 01 0f 1f 40 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 d6 48 85 f6 <0f> 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 f3                	add    %dh,%bl
   4:	0f 1e fa             	nop    %edx
   7:	48 89 f2             	mov    %rsi,%rdx
   a:	be f8 00 00 00       	mov    $0xf8,%esi
   f:	e9 5f 91 ab 01       	jmp    0x1ab9173
  14:	0f 1f 40 00          	nopl   0x0(%rax)
  18:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  1f:	00 00 00 00 
  23:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  27:	48 85 f6             	test   %rsi,%rsi
  2a:*	0f 84 9a 01 00 00    	je     0x1ca		<-- trapping instruction
  30:	48 89 f8             	mov    %rdi,%rax
  33:	41 57                	push   %r15
  35:	49 89 c8             	mov    %rcx,%r8
  38:	48 01 f0             	add    %rsi,%rax
  3b:	41 56                	push   %r14
  3d:	53                   	push   %rbx
  3e:	0f                   	.byte 0xf
  3f:	82                   	.byte 0x82

Code starting with the faulting instruction
===========================================
   0:	0f 84 9a 01 00 00    	je     0x1a0
   6:	48 89 f8             	mov    %rdi,%rax
   9:	41 57                	push   %r15
   b:	49 89 c8             	mov    %rcx,%r8
   e:	48 01 f0             	add    %rsi,%rax
  11:	41 56                	push   %r14
  13:	53                   	push   %rbx
  14:	0f                   	.byte 0xf
  15:	82                   	.byte 0x82
[ 7576.385113][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[ 7576.385114][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 7576.385115][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7576.385116][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7576.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7576.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7576.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7576.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7576.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7576.385125][    C3] PKRU: 55555554
[ 7576.385126][    C3] Call Trace:
[ 7576.385130][    C3]  <TASK>
[ 7576.385131][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 7576.385134][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7576.385137][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7576.385139][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7576.385141][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7576.385144][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7576.385146][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7576.385148][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7576.385151][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7576.385153][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7576.385155][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7576.385157][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7576.385160][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7576.385162][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7576.385164][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7576.385166][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7576.385168][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7576.385171][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7576.385172][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7576.385174][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7576.385177][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7576.385179][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7576.385182][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7576.385184][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7576.385186][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7576.385188][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7576.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7576.385190][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7576.385192][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7576.385194][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7576.385195][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7576.385198][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7576.385199][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7576.385201][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7576.385203][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7576.385204][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7576.385206][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7576.385208][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7576.385210][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7576.385211][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7576.385213][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7576.385215][    C3]  vfs_write (fs/read_write.c:686)
[ 7576.385217][    C3]  ksys_write (fs/read_write.c:739)
[ 7576.385219][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7576.385221][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7576.385223][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7576.385226][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7576.385228][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7576.385230][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7576.385231][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7576.385233][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7576.385233][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7576.385234][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7576.385235][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7576.385236][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7595.332593][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7595.332769][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7595.332942][    C3] NMI backtrace for cpu 3
| [ 7595.332949][    C3] Tainted: [L]=SOFTLOCKUP
[ 7595.332950][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7595.332952][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7595.332955][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7595.332957][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7595.332958][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7595.332959][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7595.332960][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7595.332961][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7595.332962][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7595.332964][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7595.332967][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7595.332968][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7595.332969][    C3] PKRU: 55555554
[ 7595.332970][    C3] Call Trace:
[ 7595.332972][    C3]  <TASK>
[ 7595.332975][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7595.332977][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7595.332979][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7595.332982][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7595.332984][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7595.332986][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7595.332988][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7595.332991][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7595.332994][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7595.332995][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7595.332998][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7595.333000][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7595.333002][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7595.333004][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7595.333006][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7595.333008][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7595.333011][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7595.333013][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7595.333015][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7595.333017][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7595.333019][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7595.333022][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7595.333024][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7595.333026][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7595.333028][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7595.333029][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7595.333031][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7595.333033][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7595.333035][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7595.333036][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7595.333038][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7595.333040][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7595.333041][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7595.333043][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7595.333045][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7595.333047][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7595.333048][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7595.333050][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7595.333051][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7595.333053][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7595.333055][    C3]  vfs_write (fs/read_write.c:686)
[ 7595.333058][    C3]  ksys_write (fs/read_write.c:739)
[ 7595.333059][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7595.333061][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7595.333063][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7595.333066][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7595.333072][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7595.333074][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7595.333075][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7595.333076][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7595.333077][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7595.333078][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7595.333079][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7595.333079][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7601.011072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7601.011283][    C3] rcu: 3-....: (6653646 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2489685
| [ 7601.011568][    C3] rcu: (t=6656319 jiffies g=527745 q=129864 ncpus=4)
| [ 7601.011702][    C3] Tainted: [L]=SOFTLOCKUP
[ 7601.011703][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7601.011705][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7601.011708][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7601.011709][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7601.011712][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7601.011713][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7601.011714][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7601.011715][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7601.011715][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7601.011717][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7601.011720][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7601.011721][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7601.011722][    C3] PKRU: 55555554
[ 7601.011723][    C3] Call Trace:
[ 7601.011724][    C3]  <TASK>
[ 7601.011725][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7601.011727][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7601.011729][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7601.011732][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7601.011734][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7601.011736][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7601.011738][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7601.011740][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7601.011743][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7601.011744][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7601.011747][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7601.011749][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7601.011751][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7601.011753][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7601.011755][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7601.011757][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7601.011759][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7601.011761][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7601.011763][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7601.011765][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7601.011767][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7601.011770][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7601.011772][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7601.011774][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7601.011776][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7601.011777][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7601.011779][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7601.011780][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7601.011782][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7601.011783][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7601.011786][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7601.011787][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7601.011789][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7601.011790][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7601.011792][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7601.011794][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7601.011795][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7601.011797][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7601.011799][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7601.011800][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7601.011803][    C3]  vfs_write (fs/read_write.c:686)
[ 7601.011805][    C3]  ksys_write (fs/read_write.c:739)
[ 7601.011806][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7601.011808][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7601.011810][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7601.011812][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7601.011814][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7601.011815][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7601.011816][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7601.011818][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7601.011819][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7601.011819][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7601.011820][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7601.011821][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7628.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7628.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7628.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7628.385112][    C3] Tainted: [L]=SOFTLOCKUP
[ 7628.385113][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7628.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7628.385116][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7628.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7628.385119][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7628.385120][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7628.385121][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7628.385122][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7628.385123][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7628.385125][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7628.385128][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7628.385129][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7628.385130][    C3] PKRU: 55555554
[ 7628.385131][    C3] Call Trace:
[ 7628.385133][    C3]  <TASK>
[ 7628.385135][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7628.385138][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7628.385140][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7628.385143][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7628.385145][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7628.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7628.385149][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7628.385152][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7628.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7628.385157][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7628.385159][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7628.385161][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7628.385164][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7628.385165][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7628.385167][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7628.385170][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7628.385172][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7628.385174][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7628.385176][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7628.385178][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7628.385180][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7628.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7628.385185][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7628.385187][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7628.385189][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7628.385190][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7628.385192][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7628.385194][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7628.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7628.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7628.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7628.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7628.385203][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7628.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7628.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7628.385208][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7628.385210][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7628.385212][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7628.385213][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7628.385215][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7628.385217][    C3]  vfs_write (fs/read_write.c:686)
[ 7628.385219][    C3]  ksys_write (fs/read_write.c:739)
[ 7628.385221][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7628.385223][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7628.385225][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7628.385228][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7628.385230][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7628.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7628.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7628.385235][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7628.385236][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7628.385236][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7628.385237][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7628.385238][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7656.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7656.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7656.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7656.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 7656.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7656.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7656.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7656.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7656.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7656.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7656.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7656.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7656.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7656.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7656.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7656.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7656.385124][    C3] PKRU: 55555554
[ 7656.385124][    C3] Call Trace:
[ 7656.385127][    C3]  <TASK>
[ 7656.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7656.385133][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7656.385135][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7656.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7656.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7656.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7656.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7656.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7656.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7656.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7656.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7656.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7656.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7656.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7656.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7656.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7656.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7656.385168][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7656.385170][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7656.385172][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7656.385174][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7656.385177][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7656.385179][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7656.385181][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7656.385183][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7656.385185][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7656.385186][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7656.385188][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7656.385190][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7656.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7656.385194][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7656.385195][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7656.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7656.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7656.385200][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7656.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7656.385204][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7656.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7656.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7656.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7656.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 7656.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 7656.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7656.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7656.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7656.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7656.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7656.385226][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7656.385227][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7656.385228][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7656.385229][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7656.385230][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7656.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7656.385231][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7679.015072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7679.015279][    C3] rcu: 3-....: (6731625 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2519440
| [ 7679.015577][    C3] rcu: (t=6734323 jiffies g=527745 q=131001 ncpus=4)
| [ 7679.015720][    C3] Tainted: [L]=SOFTLOCKUP
[ 7679.015721][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7679.015722][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7679.015726][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7679.015728][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7679.015729][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7679.015730][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7679.015731][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7679.015732][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7679.015733][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7679.015735][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7679.015738][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7679.015739][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7679.015740][    C3] PKRU: 55555554
[ 7679.015741][    C3] Call Trace:
[ 7679.015742][    C3]  <TASK>
[ 7679.015743][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7679.015745][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7679.015747][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7679.015750][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7679.015752][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7679.015754][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7679.015756][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7679.015758][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7679.015761][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7679.015763][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7679.015765][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7679.015767][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7679.015770][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7679.015771][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7679.015773][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7679.015775][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7679.015778][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7679.015779][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7679.015782][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7679.015784][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7679.015785][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7679.015788][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7679.015790][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7679.015792][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7679.015794][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7679.015796][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7679.015797][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7679.015799][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7679.015801][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7679.015802][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7679.015804][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7679.015806][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7679.015808][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7679.015809][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7679.015811][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7679.015813][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7679.015814][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7679.015816][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7679.015818][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7679.015819][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7679.015821][    C3]  vfs_write (fs/read_write.c:686)
[ 7679.015823][    C3]  ksys_write (fs/read_write.c:739)
[ 7679.015825][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7679.015827][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7679.015829][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7679.015831][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7679.015833][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7679.015834][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7679.015836][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7679.015837][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7679.015838][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7679.015839][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7679.015839][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7679.015840][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7693.636551][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7693.636752][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7693.636945][    C3] NMI backtrace for cpu 3
| [ 7693.636953][    C3] Tainted: [L]=SOFTLOCKUP
[ 7693.636954][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7693.636956][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7693.636958][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7693.636960][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7693.636962][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7693.636962][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7693.636963][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7693.636964][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7693.636965][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7693.636967][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7693.636970][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7693.636971][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7693.636972][    C3] PKRU: 55555554
[ 7693.636973][    C3] Call Trace:
[ 7693.636975][    C3]  <TASK>
[ 7693.636977][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7693.636979][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7693.636981][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7693.636983][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7693.636986][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7693.636988][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7693.636990][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7693.636992][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7693.636995][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7693.636997][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7693.636999][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7693.637001][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7693.637003][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7693.637005][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7693.637007][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7693.637009][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7693.637012][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7693.637013][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7693.637016][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7693.637017][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7693.637019][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7693.637022][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7693.637024][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7693.637026][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7693.637028][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7693.637030][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7693.637031][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7693.637033][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7693.637034][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7693.637036][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7693.637038][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7693.637040][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7693.637041][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7693.637043][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7693.637044][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7693.637046][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7693.637048][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7693.637050][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7693.637051][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7693.637053][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7693.637055][    C3]  vfs_write (fs/read_write.c:686)
[ 7693.637057][    C3]  ksys_write (fs/read_write.c:739)
[ 7693.637059][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7693.637061][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7693.637063][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7693.637065][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7693.637068][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7693.637073][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7693.637074][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7693.637075][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7693.637076][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7693.637077][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7693.637078][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7693.637078][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7720.385104][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7720.385106][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7720.385108][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7720.385114][    C3] Tainted: [L]=SOFTLOCKUP
[ 7720.385115][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7720.385116][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7720.385118][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7720.385120][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7720.385122][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7720.385122][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7720.385123][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7720.385124][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7720.385125][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7720.385127][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7720.385130][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7720.385131][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7720.385132][    C3] PKRU: 55555554
[ 7720.385133][    C3] Call Trace:
[ 7720.385135][    C3]  <TASK>
[ 7720.385138][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7720.385140][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7720.385142][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7720.385145][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7720.385148][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7720.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7720.385152][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7720.385154][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7720.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7720.385159][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7720.385161][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7720.385164][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7720.385166][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7720.385168][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7720.385170][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7720.385172][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7720.385174][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7720.385176][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7720.385178][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7720.385180][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7720.385182][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7720.385185][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7720.385187][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7720.385189][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7720.385191][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7720.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7720.385194][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7720.385196][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7720.385198][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7720.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7720.385201][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7720.385203][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7720.385204][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7720.385206][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7720.385208][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7720.385210][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7720.385211][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7720.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7720.385215][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7720.385216][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7720.385219][    C3]  vfs_write (fs/read_write.c:686)
[ 7720.385221][    C3]  ksys_write (fs/read_write.c:739)
[ 7720.385222][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7720.385224][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7720.385226][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7720.385229][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7720.385231][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7720.385234][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7720.385235][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7720.385236][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7720.385237][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7720.385238][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7720.385239][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7720.385240][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7748.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7748.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7748.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7748.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 7748.385104][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7748.385106][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7748.385108][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7748.385109][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7748.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7748.385111][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7748.385112][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7748.385113][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7748.385114][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7748.385116][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7748.385119][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7748.385120][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7748.385121][    C3] PKRU: 55555554
[ 7748.385122][    C3] Call Trace:
[ 7748.385124][    C3]  <TASK>
[ 7748.385127][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7748.385129][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7748.385131][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7748.385134][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7748.385136][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7748.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7748.385140][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7748.385142][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7748.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7748.385147][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7748.385149][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7748.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7748.385154][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7748.385156][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7748.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7748.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7748.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7748.385164][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7748.385166][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7748.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7748.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7748.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7748.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7748.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7748.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7748.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7748.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7748.385184][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7748.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7748.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7748.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7748.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7748.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7748.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7748.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7748.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7748.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7748.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7748.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7748.385203][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7748.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 7748.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 7748.385209][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7748.385211][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7748.385213][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7748.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7748.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7748.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7748.385221][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7748.385222][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7748.385223][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7748.385223][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7748.385224][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7748.385225][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7757.019072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7757.019292][    C3] rcu: 3-....: (6809596 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2550591
| [ 7757.019556][    C3] rcu: (t=6812327 jiffies g=527745 q=132498 ncpus=4)
| [ 7757.019755][    C3] Tainted: [L]=SOFTLOCKUP
[ 7757.019755][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7757.019756][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7757.019759][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7757.019760][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7757.019762][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7757.019763][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7757.019764][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7757.019765][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7757.019765][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7757.019767][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7757.019770][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7757.019771][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7757.019771][    C3] PKRU: 55555554
[ 7757.019772][    C3] Call Trace:
[ 7757.019773][    C3]  <TASK>
[ 7757.019774][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7757.019776][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7757.019778][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7757.019781][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7757.019783][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7757.019784][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7757.019787][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7757.019789][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7757.019791][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7757.019793][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7757.019795][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7757.019798][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7757.019800][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7757.019802][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7757.019804][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7757.019805][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7757.019808][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7757.019810][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7757.019812][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7757.019814][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7757.019815][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7757.019818][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7757.019820][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7757.019822][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7757.019824][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7757.019825][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7757.019827][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7757.019828][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7757.019830][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7757.019831][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7757.019834][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7757.019835][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7757.019837][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7757.019838][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7757.019840][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7757.019842][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7757.019843][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7757.019845][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7757.019846][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7757.019848][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7757.019850][    C3]  vfs_write (fs/read_write.c:686)
[ 7757.019852][    C3]  ksys_write (fs/read_write.c:739)
[ 7757.019854][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7757.019856][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7757.019858][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7757.019860][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7757.019861][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7757.019863][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7757.019864][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7757.019865][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7757.019866][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7757.019867][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7757.019867][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7757.019868][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7784.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7784.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7784.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7784.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 7784.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7784.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7784.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7784.385108][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7784.385109][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7784.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7784.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7784.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7784.385113][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7784.385115][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7784.385118][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7784.385119][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7784.385120][    C3] PKRU: 55555554
[ 7784.385121][    C3] Call Trace:
[ 7784.385123][    C3]  <TASK>
[ 7784.385126][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7784.385128][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7784.385131][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7784.385133][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7784.385135][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7784.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7784.385139][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7784.385142][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7784.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7784.385146][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7784.385148][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7784.385151][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7784.385153][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7784.385155][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7784.385157][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7784.385159][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7784.385161][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7784.385163][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7784.385165][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7784.385167][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7784.385169][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7784.385172][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7784.385174][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7784.385176][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7784.385178][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7784.385179][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7784.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7784.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7784.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7784.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7784.385188][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7784.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7784.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7784.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7784.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7784.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7784.385198][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7784.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7784.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7784.385203][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7784.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 7784.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 7784.385209][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7784.385211][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7784.385213][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7784.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7784.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7784.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7784.385221][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7784.385222][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7784.385223][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7784.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7784.385225][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7784.385225][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7791.941613][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7791.941809][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7791.941982][    C3] NMI backtrace for cpu 3
| [ 7791.941989][    C3] Tainted: [L]=SOFTLOCKUP
[ 7791.941989][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7791.941991][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7791.941994][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7791.941995][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7791.941996][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7791.941997][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7791.941998][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7791.941999][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7791.942000][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7791.942001][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7791.942004][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7791.942005][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7791.942005][    C3] PKRU: 55555554
[ 7791.942006][    C3] Call Trace:
[ 7791.942008][    C3]  <TASK>
[ 7791.942009][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7791.942011][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7791.942013][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7791.942016][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7791.942018][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7791.942020][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7791.942022][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7791.942025][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7791.942027][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7791.942029][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7791.942031][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7791.942034][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7791.942036][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7791.942038][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7791.942039][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7791.942042][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7791.942044][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7791.942046][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7791.942048][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7791.942050][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7791.942052][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7791.942055][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7791.942057][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7791.942059][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7791.942061][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7791.942062][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7791.942063][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7791.942065][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7791.942067][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7791.942071][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7791.942074][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7791.942075][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7791.942077][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7791.942079][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7791.942080][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7791.942082][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7791.942084][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7791.942086][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7791.942087][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7791.942089][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7791.942091][    C3]  vfs_write (fs/read_write.c:686)
[ 7791.942093][    C3]  ksys_write (fs/read_write.c:739)
[ 7791.942095][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7791.942097][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7791.942099][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7791.942101][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7791.942103][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7791.942105][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7791.942106][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7791.942107][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7791.942108][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7791.942109][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7791.942109][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7791.942110][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7816.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7816.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7816.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7816.385112][    C3] Tainted: [L]=SOFTLOCKUP
[ 7816.385113][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7816.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7816.385117][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7816.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7816.385120][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7816.385121][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7816.385121][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7816.385122][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7816.385123][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7816.385125][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7816.385128][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7816.385129][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7816.385130][    C3] PKRU: 55555554
[ 7816.385131][    C3] Call Trace:
[ 7816.385133][    C3]  <TASK>
[ 7816.385136][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7816.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7816.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7816.385143][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7816.385146][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7816.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7816.385150][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7816.385152][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7816.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7816.385157][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7816.385159][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7816.385162][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7816.385164][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7816.385166][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7816.385168][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7816.385170][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7816.385172][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7816.385174][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7816.385176][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7816.385178][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7816.385180][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7816.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7816.385185][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7816.385187][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7816.385189][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7816.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7816.385192][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7816.385194][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7816.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7816.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7816.385199][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7816.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7816.385202][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7816.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7816.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7816.385207][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7816.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7816.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7816.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7816.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7816.385216][    C3]  vfs_write (fs/read_write.c:686)
[ 7816.385218][    C3]  ksys_write (fs/read_write.c:739)
[ 7816.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7816.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7816.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7816.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7816.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7816.385231][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7816.385232][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7816.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7816.385234][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7816.385235][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7816.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7816.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7835.023073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7835.023291][    C3] rcu: 3-....: (6887567 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2581569
| [ 7835.023582][    C3] rcu: (t=6890331 jiffies g=527745 q=133995 ncpus=4)
| [ 7835.023717][    C3] Tainted: [L]=SOFTLOCKUP
[ 7835.023718][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7835.023719][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7835.023722][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7835.023724][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7835.023726][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7835.023727][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7835.023728][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7835.023729][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7835.023730][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7835.023731][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7835.023735][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7835.023736][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7835.023736][    C3] PKRU: 55555554
[ 7835.023737][    C3] Call Trace:
[ 7835.023738][    C3]  <TASK>
[ 7835.023739][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7835.023742][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7835.023744][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7835.023746][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7835.023748][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7835.023750][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7835.023752][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7835.023754][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7835.023757][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7835.023759][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7835.023761][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7835.023764][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7835.023766][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7835.023767][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7835.023769][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7835.023771][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7835.023774][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7835.023776][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7835.023778][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7835.023780][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7835.023781][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7835.023785][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7835.023787][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7835.023789][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7835.023791][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7835.023792][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7835.023793][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7835.023795][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7835.023797][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7835.023798][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7835.023801][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7835.023802][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7835.023804][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7835.023805][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7835.023807][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7835.023809][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7835.023810][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7835.023812][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7835.023814][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7835.023815][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7835.023818][    C3]  vfs_write (fs/read_write.c:686)
[ 7835.023820][    C3]  ksys_write (fs/read_write.c:739)
[ 7835.023821][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7835.023823][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7835.023825][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7835.023828][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7835.023829][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7835.023831][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7835.023832][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7835.023833][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7835.023834][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7835.023835][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7835.023836][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7835.023836][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7860.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7860.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7860.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7860.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 7860.385105][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7860.385106][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7860.385108][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7860.385110][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7860.385111][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7860.385112][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7860.385113][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7860.385114][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7860.385115][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7860.385117][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7860.385120][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7860.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7860.385122][    C3] PKRU: 55555554
[ 7860.385123][    C3] Call Trace:
[ 7860.385125][    C3]  <TASK>
[ 7860.385128][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7860.385130][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7860.385132][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7860.385135][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7860.385137][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7860.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7860.385141][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7860.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7860.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7860.385148][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7860.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7860.385153][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7860.385156][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7860.385157][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7860.385159][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7860.385161][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7860.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7860.385166][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7860.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7860.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7860.385172][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7860.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7860.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7860.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7860.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7860.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7860.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7860.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7860.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7860.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7860.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7860.385192][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7860.385194][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7860.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7860.385197][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7860.385199][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7860.385201][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7860.385202][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7860.385204][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7860.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7860.385208][    C3]  vfs_write (fs/read_write.c:686)
[ 7860.385210][    C3]  ksys_write (fs/read_write.c:739)
[ 7860.385212][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7860.385214][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7860.385216][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7860.385218][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7860.385220][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7860.385223][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7860.385224][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7860.385225][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7860.385226][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7860.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7860.385227][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7860.385228][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7888.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7888.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7888.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7888.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 7888.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7888.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7888.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7888.385108][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7888.385109][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7888.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7888.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7888.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7888.385112][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7888.385114][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7888.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7888.385118][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7888.385119][    C3] PKRU: 55555554
[ 7888.385120][    C3] Call Trace:
[ 7888.385122][    C3]  <TASK>
[ 7888.385124][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7888.385127][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7888.385129][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7888.385131][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7888.385134][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7888.385135][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7888.385138][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7888.385140][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7888.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7888.385144][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7888.385147][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7888.385149][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7888.385151][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7888.385153][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7888.385155][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7888.385157][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7888.385160][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7888.385161][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7888.385163][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7888.385166][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7888.385167][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7888.385170][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7888.385172][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7888.385174][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7888.385176][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7888.385178][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7888.385179][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7888.385181][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7888.385183][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7888.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7888.385186][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7888.385188][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7888.385190][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7888.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7888.385193][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7888.385195][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7888.385197][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7888.385198][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7888.385200][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7888.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7888.385204][    C3]  vfs_write (fs/read_write.c:686)
[ 7888.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 7888.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7888.385209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7888.385211][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7888.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7888.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7888.385218][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7888.385219][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7888.385220][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7888.385221][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7888.385222][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7888.385222][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7888.385223][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7890.245493][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7890.245671][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7890.245862][    C3] NMI backtrace for cpu 3
| [ 7890.245867][    C3] Tainted: [L]=SOFTLOCKUP
[ 7890.245868][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7890.245868][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7890.245871][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7890.245872][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7890.245873][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7890.245874][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7890.245875][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7890.245876][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7890.245876][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7890.245878][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7890.245880][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7890.245881][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7890.245882][    C3] PKRU: 55555554
[ 7890.245882][    C3] Call Trace:
[ 7890.245884][    C3]  <TASK>
[ 7890.245885][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7890.245887][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7890.245889][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7890.245891][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7890.245893][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7890.245895][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7890.245897][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7890.245899][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7890.245902][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7890.245904][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7890.245906][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7890.245909][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7890.245911][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7890.245912][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7890.245914][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7890.245916][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7890.245919][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7890.245921][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7890.245923][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7890.245925][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7890.245926][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7890.245929][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7890.245931][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7890.245933][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7890.245935][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7890.245936][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7890.245937][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7890.245939][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7890.245941][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7890.245942][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7890.245944][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7890.245946][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7890.245947][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7890.245949][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7890.245950][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7890.245952][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7890.245954][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7890.245955][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7890.245957][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7890.245958][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7890.245961][    C3]  vfs_write (fs/read_write.c:686)
[ 7890.245963][    C3]  ksys_write (fs/read_write.c:739)
[ 7890.245964][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7890.245966][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7890.245968][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7890.245971][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7890.245972][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7890.245973][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7890.245974][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7890.245976][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7890.245976][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7890.245977][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7890.245978][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7890.245978][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7913.027073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7913.027359][    C3] rcu: 3-....: (6965538 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2613071
| [ 7913.027574][    C3] rcu: (t=6968335 jiffies g=527745 q=135495 ncpus=4)
| [ 7913.027730][    C3] Tainted: [L]=SOFTLOCKUP
[ 7913.027730][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7913.027732][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7913.027736][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7913.027737][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7913.027740][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7913.027741][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7913.027741][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7913.027742][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7913.027743][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7913.027745][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7913.027747][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7913.027748][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7913.027749][    C3] PKRU: 55555554
[ 7913.027749][    C3] Call Trace:
[ 7913.027750][    C3]  <TASK>
[ 7913.027751][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7913.027754][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7913.027756][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7913.027758][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7913.027760][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7913.027762][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7913.027765][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7913.027767][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7913.027769][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7913.027771][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7913.027774][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7913.027776][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7913.027778][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7913.027780][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7913.027782][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7913.027784][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7913.027787][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7913.027788][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7913.027791][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7913.027793][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7913.027794][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7913.027797][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7913.027799][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7913.027801][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7913.027803][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7913.027804][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7913.027806][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7913.027808][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7913.027810][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7913.027811][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7913.027813][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7913.027815][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7913.027816][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7913.027818][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7913.027820][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7913.027821][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7913.027823][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7913.027825][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7913.027826][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7913.027828][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7913.027830][    C3]  vfs_write (fs/read_write.c:686)
[ 7913.027832][    C3]  ksys_write (fs/read_write.c:739)
[ 7913.027834][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7913.027835][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7913.027838][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7913.027840][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7913.027841][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7913.027843][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7913.027844][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7913.027845][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7913.027846][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7913.027847][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7913.027847][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7913.027848][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7940.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7940.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7940.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7940.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 7940.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7940.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7940.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7940.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7940.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7940.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7940.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7940.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7940.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7940.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7940.385124][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7940.385125][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7940.385125][    C3] PKRU: 55555554
[ 7940.385126][    C3] Call Trace:
[ 7940.385129][    C3]  <TASK>
[ 7940.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7940.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7940.385137][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7940.385139][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7940.385142][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7940.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7940.385146][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7940.385149][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7940.385151][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7940.385153][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7940.385156][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7940.385158][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7940.385163][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7940.385165][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7940.385167][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7940.385169][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7940.385171][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7940.385173][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7940.385175][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7940.385177][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7940.385179][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7940.385182][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7940.385185][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7940.385186][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7940.385189][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7940.385190][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7940.385191][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7940.385193][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7940.385195][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7940.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7940.385199][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7940.385200][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7940.385202][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7940.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7940.385205][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7940.385207][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7940.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7940.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7940.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7940.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7940.385216][    C3]  vfs_write (fs/read_write.c:686)
[ 7940.385219][    C3]  ksys_write (fs/read_write.c:739)
[ 7940.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7940.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7940.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7940.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7940.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7940.385232][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7940.385233][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7940.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7940.385235][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7940.385236][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7940.385237][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7940.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7968.385096][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 7968.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 7968.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 7968.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 7968.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7968.385108][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7968.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7968.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7968.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7968.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7968.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7968.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7968.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7968.385119][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7968.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7968.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7968.385124][    C3] PKRU: 55555554
[ 7968.385124][    C3] Call Trace:
[ 7968.385128][    C3]  <TASK>
[ 7968.385131][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7968.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7968.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7968.385139][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7968.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7968.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7968.385145][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7968.385147][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7968.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7968.385152][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7968.385154][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7968.385157][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7968.385159][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7968.385161][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7968.385163][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7968.385165][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7968.385168][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7968.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7968.385171][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7968.385173][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7968.385175][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7968.385179][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7968.385181][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7968.385183][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7968.385185][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7968.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7968.385188][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7968.385190][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7968.385192][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7968.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7968.385196][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7968.385197][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7968.385199][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7968.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7968.385202][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7968.385204][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7968.385206][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7968.385207][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7968.385209][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7968.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7968.385213][    C3]  vfs_write (fs/read_write.c:686)
[ 7968.385215][    C3]  ksys_write (fs/read_write.c:739)
[ 7968.385217][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7968.385218][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7968.385221][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7968.385223][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7968.385226][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7968.385228][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7968.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7968.385230][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7968.385231][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7968.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7968.385233][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7968.385234][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7988.548586][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 7988.548771][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 7988.548985][    C3] NMI backtrace for cpu 3
| [ 7988.548994][    C3] Tainted: [L]=SOFTLOCKUP
[ 7988.548995][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7988.548996][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7988.548999][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7988.549001][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7988.549003][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7988.549004][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7988.549005][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7988.549005][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7988.549006][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7988.549008][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7988.549011][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7988.549012][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7988.549013][    C3] PKRU: 55555554
[ 7988.549014][    C3] Call Trace:
[ 7988.549016][    C3]  <TASK>
[ 7988.549019][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7988.549022][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7988.549024][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7988.549026][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7988.549029][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7988.549030][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7988.549033][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7988.549035][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7988.549038][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7988.549040][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7988.549042][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7988.549045][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7988.549047][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7988.549048][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7988.549051][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7988.549052][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7988.549055][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7988.549057][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7988.549059][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7988.549062][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7988.549063][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7988.549066][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7988.549072][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7988.549074][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7988.549076][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7988.549077][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7988.549078][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7988.549080][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7988.549082][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7988.549083][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7988.549086][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7988.549087][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7988.549089][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7988.549091][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7988.549092][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7988.549094][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7988.549096][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7988.549097][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7988.549099][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7988.549101][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7988.549103][    C3]  vfs_write (fs/read_write.c:686)
[ 7988.549105][    C3]  ksys_write (fs/read_write.c:739)
[ 7988.549107][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7988.549109][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7988.549111][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7988.549113][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7988.549115][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7988.549117][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7988.549118][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7988.549120][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7988.549121][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7988.549121][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7988.549122][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7988.549123][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 7991.031071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 7991.031263][    C3] rcu: 3-....: (7043510 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2644060
| [ 7991.031544][    C3] rcu: (t=7046339 jiffies g=527745 q=136992 ncpus=4)
| [ 7991.031687][    C3] Tainted: [L]=SOFTLOCKUP
[ 7991.031687][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 7991.031688][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 7991.031691][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 7991.031693][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 7991.031694][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 7991.031695][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 7991.031696][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 7991.031697][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 7991.031698][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 7991.031699][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 7991.031701][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7991.031702][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 7991.031703][    C3] PKRU: 55555554
[ 7991.031704][    C3] Call Trace:
[ 7991.031704][    C3]  <TASK>
[ 7991.031705][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 7991.031707][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 7991.031709][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 7991.031711][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 7991.031713][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 7991.031715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7991.031717][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 7991.031720][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 7991.031722][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 7991.031724][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 7991.031726][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 7991.031729][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 7991.031731][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 7991.031732][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 7991.031734][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 7991.031736][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 7991.031739][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 7991.031741][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7991.031743][    C3]  ? release_sock (net/core/sock.c:3794)
[ 7991.031745][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 7991.031746][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 7991.031749][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7991.031751][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 7991.031753][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 7991.031755][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 7991.031756][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7991.031757][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 7991.031760][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 7991.031761][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 7991.031762][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7991.031765][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 7991.031766][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 7991.031768][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 7991.031770][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 7991.031771][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 7991.031773][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 7991.031775][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 7991.031776][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 7991.031778][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 7991.031780][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 7991.031782][    C3]  vfs_write (fs/read_write.c:686)
[ 7991.031784][    C3]  ksys_write (fs/read_write.c:739)
[ 7991.031786][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 7991.031787][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 7991.031790][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 7991.031792][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 7991.031793][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 7991.031795][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 7991.031796][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 7991.031797][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 7991.031798][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 7991.031799][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 7991.031800][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 7991.031800][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8016.385100][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8016.385102][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8016.385104][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8016.385110][    C3] Tainted: [L]=SOFTLOCKUP
[ 8016.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8016.385112][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8016.385114][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8016.385115][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8016.385117][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8016.385118][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8016.385118][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8016.385119][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8016.385120][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8016.385122][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8016.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8016.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8016.385127][    C3] PKRU: 55555554
[ 8016.385127][    C3] Call Trace:
[ 8016.385130][    C3]  <TASK>
[ 8016.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8016.385136][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8016.385138][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8016.385140][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8016.385143][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8016.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8016.385147][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8016.385149][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8016.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8016.385153][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8016.385156][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8016.385158][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8016.385161][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8016.385162][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8016.385164][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8016.385166][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8016.385169][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8016.385171][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8016.385173][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8016.385175][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8016.385176][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8016.385180][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8016.385182][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8016.385184][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8016.385186][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8016.385187][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8016.385188][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8016.385190][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8016.385192][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8016.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8016.385196][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8016.385198][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8016.385199][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8016.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8016.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8016.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8016.385206][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8016.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8016.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8016.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8016.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 8016.385216][    C3]  ksys_write (fs/read_write.c:739)
[ 8016.385217][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8016.385219][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8016.385221][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8016.385224][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8016.385226][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8016.385228][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8016.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8016.385231][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8016.385232][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8016.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8016.385233][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8016.385234][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8044.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8044.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8044.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8044.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 8044.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8044.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8044.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8044.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8044.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8044.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8044.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8044.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8044.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8044.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8044.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8044.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8044.385125][    C3] PKRU: 55555554
[ 8044.385126][    C3] Call Trace:
[ 8044.385129][    C3]  <TASK>
[ 8044.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8044.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8044.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8044.385139][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8044.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8044.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8044.385145][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8044.385147][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8044.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8044.385152][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8044.385154][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8044.385157][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8044.385159][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8044.385161][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8044.385163][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8044.385165][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8044.385167][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8044.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8044.385171][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8044.385173][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8044.385175][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8044.385178][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8044.385181][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8044.385182][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8044.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8044.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8044.385187][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8044.385189][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8044.385191][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8044.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8044.385194][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8044.385196][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8044.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8044.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8044.385201][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8044.385203][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8044.385204][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8044.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8044.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8044.385209][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8044.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 8044.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 8044.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8044.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8044.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8044.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8044.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8044.385226][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8044.385227][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8044.385228][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8044.385229][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8044.385230][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8044.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8044.385231][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8069.034072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8069.034296][    C3] rcu: 3-....: (7121488 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2675414
| [ 8069.034595][    C3] rcu: (t=7124342 jiffies g=527745 q=138129 ncpus=4)
| [ 8069.034735][    C3] Tainted: [L]=SOFTLOCKUP
[ 8069.034736][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8069.034737][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8069.034740][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8069.034742][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8069.034743][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8069.034745][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8069.034745][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8069.034746][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8069.034747][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8069.034749][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8069.034752][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8069.034753][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8069.034754][    C3] PKRU: 55555554
[ 8069.034755][    C3] Call Trace:
[ 8069.034756][    C3]  <TASK>
[ 8069.034756][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8069.034759][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8069.034761][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8069.034763][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8069.034765][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8069.034767][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8069.034769][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8069.034772][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8069.034774][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8069.034776][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8069.034778][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8069.034781][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8069.034783][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8069.034785][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8069.034787][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8069.034789][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8069.034791][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8069.034793][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8069.034795][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8069.034797][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8069.034798][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8069.034801][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8069.034804][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8069.034805][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8069.034807][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8069.034809][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8069.034810][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8069.034812][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8069.034813][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8069.034815][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8069.034817][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8069.034819][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8069.034820][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8069.034822][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8069.034823][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8069.034825][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8069.034827][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8069.034828][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8069.034830][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8069.034832][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8069.034834][    C3]  vfs_write (fs/read_write.c:686)
[ 8069.034836][    C3]  ksys_write (fs/read_write.c:739)
[ 8069.034838][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8069.034839][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8069.034842][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8069.034844][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8069.034845][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8069.034847][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8069.034848][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8069.034849][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8069.034850][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8069.034851][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8069.034852][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8069.034852][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8086.852460][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8086.852681][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8086.852874][    C3] NMI backtrace for cpu 3
| [ 8086.852882][    C3] Tainted: [L]=SOFTLOCKUP
[ 8086.852883][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8086.852885][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8086.852888][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8086.852890][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8086.852892][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8086.852893][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8086.852893][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8086.852894][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8086.852895][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8086.852897][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8086.852900][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8086.852901][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8086.852902][    C3] PKRU: 55555554
[ 8086.852903][    C3] Call Trace:
[ 8086.852905][    C3]  <TASK>
[ 8086.852908][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8086.852910][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8086.852912][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8086.852915][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8086.852917][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8086.852919][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8086.852921][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8086.852923][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8086.852926][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8086.852928][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8086.852930][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8086.852933][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8086.852935][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8086.852936][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8086.852938][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8086.852941][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8086.852943][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8086.852945][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8086.852947][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8086.852949][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8086.852951][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8086.852954][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8086.852956][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8086.852958][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8086.852960][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8086.852961][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8086.852963][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8086.852964][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8086.852966][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8086.852967][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8086.852970][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8086.852971][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8086.852973][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8086.852975][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8086.852976][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8086.852978][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8086.852979][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8086.852981][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8086.852983][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8086.852984][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8086.852987][    C3]  vfs_write (fs/read_write.c:686)
[ 8086.852989][    C3]  ksys_write (fs/read_write.c:739)
[ 8086.852990][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8086.852992][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8086.852994][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8086.852997][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8086.852999][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8086.853001][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8086.853002][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8086.853004][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8086.853005][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8086.853005][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8086.853006][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8086.853007][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8112.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8112.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8112.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8112.385111][    C3] Tainted: [L]=SOFTLOCKUP
[ 8112.385112][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8112.385114][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8112.385116][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8112.385117][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8112.385119][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8112.385120][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8112.385121][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8112.385121][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8112.385122][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8112.385124][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8112.385127][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8112.385128][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8112.385129][    C3] PKRU: 55555554
[ 8112.385130][    C3] Call Trace:
[ 8112.385132][    C3]  <TASK>
[ 8112.385135][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8112.385137][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8112.385139][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8112.385141][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8112.385144][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8112.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8112.385148][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8112.385150][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8112.385153][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8112.385154][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8112.385157][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8112.385159][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8112.385162][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8112.385163][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8112.385165][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8112.385167][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8112.385170][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8112.385171][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8112.385174][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8112.385176][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8112.385177][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8112.385180][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8112.385182][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8112.385184][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8112.385186][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8112.385188][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8112.385189][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8112.385191][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8112.385193][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8112.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8112.385196][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8112.385198][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8112.385200][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8112.385202][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8112.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8112.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8112.385206][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8112.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8112.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8112.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8112.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 8112.385216][    C3]  ksys_write (fs/read_write.c:739)
[ 8112.385217][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8112.385219][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8112.385221][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8112.385224][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8112.385226][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8112.385228][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8112.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8112.385231][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8112.385231][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8112.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8112.385233][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8112.385233][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8140.385096][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8140.385098][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8140.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8140.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 8140.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8140.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8140.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8140.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8140.385112][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8140.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8140.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8140.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8140.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8140.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8140.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8140.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8140.385123][    C3] PKRU: 55555554
[ 8140.385124][    C3] Call Trace:
[ 8140.385126][    C3]  <TASK>
[ 8140.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8140.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8140.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8140.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8140.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8140.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8140.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8140.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8140.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8140.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8140.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8140.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8140.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8140.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8140.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8140.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8140.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8140.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8140.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8140.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8140.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8140.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8140.385179][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8140.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8140.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8140.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8140.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8140.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8140.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8140.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8140.385192][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8140.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8140.385196][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8140.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8140.385199][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8140.385201][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8140.385202][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8140.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8140.385206][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8140.385207][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8140.385210][    C3]  vfs_write (fs/read_write.c:686)
[ 8140.385212][    C3]  ksys_write (fs/read_write.c:739)
[ 8140.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8140.385215][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8140.385218][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8140.385220][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8140.385222][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8140.385225][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8140.385225][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8140.385227][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8140.385227][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8140.385228][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8140.385229][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8140.385229][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8147.037072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8147.037282][    C3] rcu: 3-....: (7199458 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2706492
| [ 8147.037500][    C3] rcu: (t=7202345 jiffies g=527745 q=139626 ncpus=4)
| [ 8147.037647][    C3] Tainted: [L]=SOFTLOCKUP
[ 8147.037648][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8147.037649][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8147.037652][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8147.037653][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8147.037655][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8147.037656][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8147.037657][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8147.037658][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8147.037658][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8147.037661][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8147.037663][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8147.037664][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8147.037665][    C3] PKRU: 55555554
[ 8147.037666][    C3] Call Trace:
[ 8147.037667][    C3]  <TASK>
[ 8147.037667][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8147.037670][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8147.037672][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8147.037675][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8147.037677][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8147.037678][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8147.037681][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8147.037683][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8147.037686][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8147.037688][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8147.037690][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8147.037692][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8147.037695][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8147.037696][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8147.037698][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8147.037700][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8147.037703][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8147.037705][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8147.037707][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8147.037709][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8147.037710][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8147.037713][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8147.037715][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8147.037717][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8147.037719][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8147.037721][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8147.037722][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8147.037724][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8147.037725][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8147.037727][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8147.037729][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8147.037731][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8147.037732][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8147.037734][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8147.037735][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8147.037737][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8147.037739][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8147.037741][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8147.037742][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8147.037744][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8147.037746][    C3]  vfs_write (fs/read_write.c:686)
[ 8147.037748][    C3]  ksys_write (fs/read_write.c:739)
[ 8147.037750][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8147.037751][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8147.037754][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8147.037756][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8147.037757][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8147.037759][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8147.037760][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8147.037761][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8147.037762][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8147.037763][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8147.037763][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8147.037764][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8172.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8172.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8172.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8172.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 8172.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8172.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8172.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8172.385113][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8172.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8172.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8172.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8172.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8172.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8172.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8172.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8172.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8172.385127][    C3] PKRU: 55555554
[ 8172.385128][    C3] Call Trace:
[ 8172.385130][    C3]  <TASK>
[ 8172.385133][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8172.385135][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8172.385137][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8172.385140][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8172.385143][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8172.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8172.385147][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8172.385149][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8172.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8172.385154][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8172.385156][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8172.385159][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8172.385161][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8172.385163][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8172.385165][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8172.385167][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8172.385169][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8172.385171][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8172.385173][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8172.385175][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8172.385177][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8172.385180][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8172.385183][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8172.385184][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8172.385186][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8172.385188][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8172.385189][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8172.385191][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8172.385193][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8172.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8172.385196][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8172.385198][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8172.385200][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8172.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8172.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8172.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8172.385206][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8172.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8172.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8172.385211][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8172.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 8172.385216][    C3]  ksys_write (fs/read_write.c:739)
[ 8172.385217][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8172.385219][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8172.385221][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8172.385224][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8172.385227][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8172.385229][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8172.385230][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8172.385232][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8172.385233][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8172.385234][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8172.385234][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8172.385235][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8185.157478][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8185.157740][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8185.157901][    C3] NMI backtrace for cpu 3
| [ 8185.157909][    C3] Tainted: [L]=SOFTLOCKUP
[ 8185.157910][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8185.157912][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:201)
[ 8185.157915][    C3] Code: 48 39 c1 74 20 80 38 00 74 f2 b9 01 00 00 00 48 85 c0 74 2e 48 39 c3 75 19 45 89 f2 41 83 e2 07 44 3a 13 7d 0d b9 01 00 00 00 <5b> 41 5e 89 c8 41 5f c3 4c 89 c1 0f b6 d2 e8 df e9 ff ff 83 f0 01
All code
========
   0:	48 39 c1             	cmp    %rax,%rcx
   3:	74 20                	je     0x25
   5:	80 38 00             	cmpb   $0x0,(%rax)
   8:	74 f2                	je     0xfffffffffffffffc
   a:	b9 01 00 00 00       	mov    $0x1,%ecx
   f:	48 85 c0             	test   %rax,%rax
  12:	74 2e                	je     0x42
  14:	48 39 c3             	cmp    %rax,%rbx
  17:	75 19                	jne    0x32
  19:	45 89 f2             	mov    %r14d,%r10d
  1c:	41 83 e2 07          	and    $0x7,%r10d
  20:	44 3a 13             	cmp    (%rbx),%r10b
  23:	7d 0d                	jge    0x32
  25:	b9 01 00 00 00       	mov    $0x1,%ecx
  2a:*	5b                   	pop    %rbx		<-- trapping instruction
  2b:	41 5e                	pop    %r14
  2d:	89 c8                	mov    %ecx,%eax
  2f:	41 5f                	pop    %r15
  31:	c3                   	ret
  32:	4c 89 c1             	mov    %r8,%rcx
  35:	0f b6 d2             	movzbl %dl,%edx
  38:	e8 df e9 ff ff       	call   0xffffffffffffea1c
  3d:	83 f0 01             	xor    $0x1,%eax

Code starting with the faulting instruction
===========================================
   0:	5b                   	pop    %rbx
   1:	41 5e                	pop    %r14
   3:	89 c8                	mov    %ecx,%eax
   5:	41 5f                	pop    %r15
   7:	c3                   	ret
   8:	4c 89 c1             	mov    %r8,%rcx
   b:	0f b6 d2             	movzbl %dl,%edx
   e:	e8 df e9 ff ff       	call   0xffffffffffffe9f2
  13:	83 f0 01             	xor    $0x1,%eax
[ 8185.157917][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000246
[ 8185.157918][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: 0000000000000001
[ 8185.157919][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8185.157920][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8185.157921][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8185.157922][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 8185.157924][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8185.157927][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8185.157928][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8185.157929][    C3] PKRU: 55555554
[ 8185.157930][    C3] Call Trace:
[ 8185.157932][    C3]  <TASK>
[ 8185.157934][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 8185.157936][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8185.157938][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8185.157940][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8185.157943][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8185.157945][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8185.157947][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8185.157949][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8185.157951][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8185.157954][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8185.157956][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8185.157958][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8185.157961][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8185.157963][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8185.157965][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8185.157967][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8185.157969][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8185.157971][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8185.157973][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8185.157975][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8185.157977][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8185.157979][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8185.157982][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8185.157984][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8185.157986][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8185.157988][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8185.157989][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8185.157991][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8185.157993][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8185.157994][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8185.157996][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8185.157998][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8185.158000][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8185.158001][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8185.158003][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8185.158005][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8185.158006][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8185.158008][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8185.158010][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8185.158011][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8185.158013][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8185.158015][    C3]  vfs_write (fs/read_write.c:686)
[ 8185.158017][    C3]  ksys_write (fs/read_write.c:739)
[ 8185.158019][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8185.158021][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8185.158023][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8185.158025][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8185.158028][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8185.158030][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8185.158031][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8185.158032][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8185.158033][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8185.158034][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8185.158034][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8185.158035][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8212.385105][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8212.385107][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8212.385109][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8212.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 8212.385116][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8212.385117][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8212.385120][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8212.385121][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8212.385123][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8212.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8212.385124][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8212.385125][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8212.385126][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8212.385128][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8212.385132][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8212.385133][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8212.385133][    C3] PKRU: 55555554
[ 8212.385134][    C3] Call Trace:
[ 8212.385137][    C3]  <TASK>
[ 8212.385140][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8212.385142][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8212.385144][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8212.385146][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8212.385149][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8212.385151][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8212.385153][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8212.385156][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8212.385159][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8212.385161][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8212.385163][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8212.385165][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8212.385168][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8212.385169][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8212.385171][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8212.385173][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8212.385176][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8212.385178][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8212.385180][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8212.385182][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8212.385184][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8212.385187][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8212.385189][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8212.385191][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8212.385193][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8212.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8212.385196][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8212.385198][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8212.385199][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8212.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8212.385203][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8212.385205][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8212.385206][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8212.385208][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8212.385209][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8212.385212][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8212.385213][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8212.385215][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8212.385216][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8212.385218][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8212.385220][    C3]  vfs_write (fs/read_write.c:686)
[ 8212.385222][    C3]  ksys_write (fs/read_write.c:739)
[ 8212.385224][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8212.385226][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8212.385228][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8212.385231][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8212.385233][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8212.385236][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8212.385237][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8212.385238][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8212.385239][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8212.385240][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8212.385241][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8212.385241][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8225.041071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8225.041296][    C3] rcu: 3-....: (7277428 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2737266
| [ 8225.041627][    C3] rcu: (t=7280349 jiffies g=527745 q=141135 ncpus=4)
| [ 8225.041794][    C3] Tainted: [L]=SOFTLOCKUP
[ 8225.041794][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8225.041795][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8225.041798][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8225.041799][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8225.041801][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8225.041802][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8225.041803][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8225.041803][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8225.041804][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8225.041806][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8225.041809][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8225.041810][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8225.041811][    C3] PKRU: 55555554
[ 8225.041811][    C3] Call Trace:
[ 8225.041812][    C3]  <TASK>
[ 8225.041813][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8225.041815][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8225.041817][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8225.041820][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8225.041822][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8225.041824][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8225.041826][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8225.041828][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8225.041831][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8225.041833][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8225.041835][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8225.041838][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8225.041840][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8225.041841][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8225.041843][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8225.041845][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8225.041848][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8225.041850][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8225.041852][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8225.041854][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8225.041855][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8225.041858][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8225.041861][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8225.041862][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8225.041864][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8225.041866][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8225.041867][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8225.041869][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8225.041871][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8225.041872][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8225.041874][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8225.041876][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8225.041877][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8225.041879][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8225.041881][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8225.041882][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8225.041884][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8225.041886][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8225.041887][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8225.041889][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8225.041891][    C3]  vfs_write (fs/read_write.c:686)
[ 8225.041893][    C3]  ksys_write (fs/read_write.c:739)
[ 8225.041895][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8225.041897][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8225.041899][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8225.041901][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8225.041903][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8225.041904][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8225.041905][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8225.041906][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8225.041907][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8225.041908][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8225.041909][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8225.041909][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8252.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8252.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8252.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8252.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 8252.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8252.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8252.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8252.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8252.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8252.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8252.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8252.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8252.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8252.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8252.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8252.385125][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8252.385125][    C3] PKRU: 55555554
[ 8252.385126][    C3] Call Trace:
[ 8252.385129][    C3]  <TASK>
[ 8252.385131][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8252.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8252.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8252.385138][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8252.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8252.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8252.385145][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8252.385148][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8252.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8252.385152][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8252.385155][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8252.385157][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8252.385159][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8252.385161][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8252.385163][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8252.385165][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8252.385168][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8252.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8252.385172][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8252.385174][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8252.385176][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8252.385179][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8252.385181][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8252.385183][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8252.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8252.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8252.385187][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8252.385189][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8252.385191][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8252.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8252.385195][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8252.385196][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8252.385198][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8252.385200][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8252.385201][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8252.385203][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8252.385205][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8252.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8252.385208][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8252.385209][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8252.385212][    C3]  vfs_write (fs/read_write.c:686)
[ 8252.385214][    C3]  ksys_write (fs/read_write.c:739)
[ 8252.385216][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8252.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8252.385220][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8252.385222][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8252.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8252.385227][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8252.385228][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8252.385229][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8252.385230][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8252.385231][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8252.385231][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8252.385232][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8280.385096][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8280.385098][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8280.385100][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8280.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 8280.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8280.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8280.385111][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8280.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8280.385114][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8280.385115][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8280.385116][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8280.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8280.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8280.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8280.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8280.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8280.385125][    C3] PKRU: 55555554
[ 8280.385125][    C3] Call Trace:
[ 8280.385128][    C3]  <TASK>
[ 8280.385131][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8280.385133][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8280.385135][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8280.385138][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8280.385140][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8280.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8280.385144][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8280.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8280.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8280.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8280.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8280.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8280.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8280.385160][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8280.385162][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8280.385164][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8280.385167][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8280.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8280.385171][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8280.385173][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8280.385175][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8280.385178][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8280.385180][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8280.385182][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8280.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8280.385185][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8280.385186][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8280.385188][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8280.385190][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8280.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8280.385194][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8280.385195][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8280.385197][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8280.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8280.385200][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8280.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8280.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8280.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8280.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8280.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8280.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 8280.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 8280.385214][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8280.385216][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8280.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8280.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8280.385223][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8280.385225][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8280.385226][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8280.385228][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8280.385229][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8280.385230][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8280.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8280.385231][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8283.460467][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8283.460680][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8283.460885][    C3] NMI backtrace for cpu 3
| [ 8283.460891][    C3] Tainted: [L]=SOFTLOCKUP
[ 8283.460892][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8283.460893][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8283.460895][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8283.460897][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8283.460898][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8283.460899][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8283.460900][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8283.460901][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8283.460901][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8283.460903][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8283.460906][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8283.460907][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8283.460907][    C3] PKRU: 55555554
[ 8283.460908][    C3] Call Trace:
[ 8283.460909][    C3]  <TASK>
[ 8283.460911][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8283.460913][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8283.460915][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8283.460917][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8283.460919][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8283.460921][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8283.460924][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8283.460926][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8283.460928][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8283.460930][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8283.460932][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8283.460935][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8283.460937][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8283.460939][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8283.460941][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8283.460943][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8283.460945][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8283.460947][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8283.460949][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8283.460951][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8283.460953][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8283.460956][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8283.460958][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8283.460960][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8283.460962][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8283.460963][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8283.460965][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8283.460967][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8283.460968][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8283.460970][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8283.460972][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8283.460974][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8283.460975][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8283.460977][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8283.460978][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8283.460980][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8283.460982][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8283.460983][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8283.460985][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8283.460986][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8283.460989][    C3]  vfs_write (fs/read_write.c:686)
[ 8283.460991][    C3]  ksys_write (fs/read_write.c:739)
[ 8283.460992][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8283.460994][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8283.460996][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8283.460999][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8283.461000][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8283.461001][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8283.461002][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8283.461003][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8283.461004][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8283.461005][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8283.461005][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8283.461006][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8303.045073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8303.045364][    C3] rcu: 3-....: (7355399 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2767940
| [ 8303.045612][    C3] rcu: (t=7358353 jiffies g=527745 q=142632 ncpus=4)
| [ 8303.045749][    C3] Tainted: [L]=SOFTLOCKUP
[ 8303.045749][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8303.045751][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8303.045754][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8303.045756][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8303.045759][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8303.045760][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8303.045760][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8303.045761][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8303.045762][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8303.045764][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8303.045767][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8303.045768][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8303.045769][    C3] PKRU: 55555554
[ 8303.045769][    C3] Call Trace:
[ 8303.045770][    C3]  <TASK>
[ 8303.045771][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8303.045773][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8303.045775][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8303.045778][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8303.045780][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8303.045782][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8303.045784][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8303.045786][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8303.045789][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8303.045791][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8303.045793][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8303.045795][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8303.045797][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8303.045799][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8303.045801][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8303.045803][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8303.045806][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8303.045808][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8303.045810][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8303.045812][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8303.045813][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8303.045816][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8303.045818][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8303.045820][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8303.045822][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8303.045824][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8303.045825][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8303.045827][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8303.045829][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8303.045830][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8303.045832][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8303.045834][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8303.045835][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8303.045837][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8303.045838][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8303.045840][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8303.045842][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8303.045844][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8303.045845][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8303.045847][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8303.045849][    C3]  vfs_write (fs/read_write.c:686)
[ 8303.045851][    C3]  ksys_write (fs/read_write.c:739)
[ 8303.045853][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8303.045854][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8303.045857][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8303.045859][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8303.045861][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8303.045862][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8303.045863][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8303.045864][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8303.045865][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8303.045866][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8303.045867][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8303.045867][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8328.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8328.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8328.385120][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8328.385129][    C3] Tainted: [L]=SOFTLOCKUP
[ 8328.385130][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8328.385132][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8328.385136][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8328.385137][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8328.385140][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8328.385141][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8328.385142][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8328.385143][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8328.385144][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8328.385147][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8328.385151][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8328.385152][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8328.385153][    C3] PKRU: 55555554
[ 8328.385154][    C3] Call Trace:
[ 8328.385156][    C3]  <TASK>
[ 8328.385160][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8328.385165][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8328.385167][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8328.385171][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8328.385175][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8328.385177][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8328.385179][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8328.385182][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8328.385186][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8328.385187][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8328.385190][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8328.385192][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8328.385195][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8328.385197][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8328.385199][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8328.385201][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8328.385206][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8328.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8328.385210][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8328.385212][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8328.385214][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8328.385217][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8328.385221][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8328.385223][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8328.385226][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8328.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8328.385231][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8328.385233][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8328.385236][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8328.385237][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8328.385239][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8328.385241][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8328.385244][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8328.385245][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8328.385247][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8328.385249][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8328.385251][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8328.385253][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8328.385254][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8328.385256][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8328.385258][    C3]  vfs_write (fs/read_write.c:686)
[ 8328.385261][    C3]  ksys_write (fs/read_write.c:739)
[ 8328.385263][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8328.385265][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8328.385267][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8328.385271][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8328.385274][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8328.385278][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8328.385279][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8328.385281][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8328.385282][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8328.385283][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8328.385284][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8328.385284][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8356.385104][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8356.385106][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8356.385109][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8356.385117][    C3] Tainted: [L]=SOFTLOCKUP
[ 8356.385118][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8356.385119][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8356.385122][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8356.385123][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8356.385125][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8356.385126][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8356.385127][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8356.385128][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8356.385129][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8356.385131][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8356.385134][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8356.385135][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8356.385136][    C3] PKRU: 55555554
[ 8356.385136][    C3] Call Trace:
[ 8356.385137][    C3]  <TASK>
[ 8356.385139][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8356.385143][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8356.385145][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8356.385149][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8356.385153][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8356.385155][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8356.385157][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8356.385159][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8356.385162][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8356.385164][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8356.385166][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8356.385169][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8356.385171][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8356.385173][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8356.385175][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8356.385177][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8356.385182][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8356.385183][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8356.385186][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8356.385188][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8356.385189][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8356.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8356.385196][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8356.385197][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8356.385201][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8356.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8356.385205][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8356.385207][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8356.385210][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8356.385212][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8356.385214][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8356.385216][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8356.385218][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8356.385220][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8356.385221][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8356.385224][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8356.385225][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8356.385227][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8356.385228][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8356.385230][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8356.385232][    C3]  vfs_write (fs/read_write.c:686)
[ 8356.385235][    C3]  ksys_write (fs/read_write.c:739)
[ 8356.385237][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8356.385238][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8356.385241][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8356.385244][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8356.385247][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8356.385249][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8356.385250][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8356.385252][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8356.385253][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8356.385253][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8356.385254][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8356.385255][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8381.049071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8381.049373][    C3] rcu: 3-....: (7433378 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2801663
| [ 8381.049601][    C3] rcu: (t=7436357 jiffies g=527745 q=143769 ncpus=4)
| [ 8381.049784][    C3] Tainted: [L]=SOFTLOCKUP
[ 8381.049785][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8381.049786][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8381.049790][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8381.049791][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8381.049794][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8381.049795][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8381.049796][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8381.049797][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8381.049798][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8381.049799][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8381.049803][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8381.049804][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8381.049805][    C3] PKRU: 55555554
[ 8381.049805][    C3] Call Trace:
[ 8381.049806][    C3]  <TASK>
[ 8381.049807][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8381.049809][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8381.049812][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8381.049814][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8381.049816][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8381.049818][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8381.049821][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8381.049823][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8381.049826][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8381.049827][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8381.049830][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8381.049832][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8381.049835][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8381.049836][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8381.049838][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8381.049840][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8381.049843][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8381.049845][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8381.049847][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8381.049849][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8381.049850][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8381.049853][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8381.049856][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8381.049858][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8381.049860][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8381.049861][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8381.049863][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8381.049865][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8381.049866][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8381.049867][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8381.049870][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8381.049872][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8381.049873][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8381.049875][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8381.049876][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8381.049878][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8381.049880][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8381.049882][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8381.049883][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8381.049885][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8381.049887][    C3]  vfs_write (fs/read_write.c:686)
[ 8381.049889][    C3]  ksys_write (fs/read_write.c:739)
[ 8381.049891][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8381.049893][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8381.049895][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8381.049897][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8381.049899][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8381.049901][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8381.049902][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8381.049904][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8381.049905][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8381.049906][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8381.049906][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8381.049907][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8381.764442][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8381.764632][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8381.764796][    C3] NMI backtrace for cpu 3
| [ 8381.764800][    C3] Tainted: [L]=SOFTLOCKUP
[ 8381.764801][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8381.764801][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8381.764804][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8381.764805][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8381.764806][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8381.764807][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8381.764808][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8381.764808][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8381.764809][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8381.764811][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8381.764813][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8381.764814][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8381.764814][    C3] PKRU: 55555554
[ 8381.764815][    C3] Call Trace:
[ 8381.764816][    C3]  <TASK>
[ 8381.764816][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8381.764818][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8381.764821][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8381.764823][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8381.764825][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8381.764827][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8381.764829][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8381.764831][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8381.764834][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8381.764836][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8381.764838][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8381.764841][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8381.764843][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8381.764844][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8381.764846][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8381.764848][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8381.764851][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8381.764853][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8381.764855][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8381.764857][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8381.764858][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8381.764861][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8381.764863][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8381.764865][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8381.764867][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8381.764869][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8381.764870][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8381.764872][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8381.764873][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8381.764875][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8381.764877][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8381.764879][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8381.764880][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8381.764882][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8381.764883][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8381.764885][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8381.764887][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8381.764888][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8381.764890][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8381.764891][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8381.764894][    C3]  vfs_write (fs/read_write.c:686)
[ 8381.764896][    C3]  ksys_write (fs/read_write.c:739)
[ 8381.764897][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8381.764899][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8381.764901][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8381.764904][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8381.764905][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8381.764906][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8381.764907][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8381.764908][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8381.764909][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8381.764910][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8381.764911][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8381.764912][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8408.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8408.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8408.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8408.385098][    C3] Tainted: [L]=SOFTLOCKUP
[ 8408.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8408.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8408.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8408.385103][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8408.385104][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8408.385105][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8408.385106][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8408.385106][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8408.385107][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8408.385109][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8408.385111][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8408.385112][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8408.385113][    C3] PKRU: 55555554
[ 8408.385113][    C3] Call Trace:
[ 8408.385114][    C3]  <TASK>
[ 8408.385115][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8408.385117][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8408.385119][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8408.385122][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8408.385124][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8408.385126][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8408.385128][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8408.385130][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8408.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8408.385135][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8408.385137][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8408.385139][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8408.385142][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8408.385143][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8408.385145][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8408.385147][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8408.385150][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8408.385151][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8408.385154][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8408.385155][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8408.385157][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8408.385160][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8408.385163][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8408.385164][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8408.385166][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8408.385168][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8408.385169][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8408.385171][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8408.385173][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8408.385174][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8408.385176][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8408.385178][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8408.385180][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8408.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8408.385183][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8408.385185][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8408.385186][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8408.385188][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8408.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8408.385191][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8408.385193][    C3]  vfs_write (fs/read_write.c:686)
[ 8408.385195][    C3]  ksys_write (fs/read_write.c:739)
[ 8408.385197][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8408.385199][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8408.385201][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8408.385204][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8408.385205][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8408.385206][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8408.385207][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8408.385209][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8408.385210][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8408.385211][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8408.385211][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8408.385212][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8436.385087][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8436.385089][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8436.385090][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8436.385095][    C3] Tainted: [L]=SOFTLOCKUP
[ 8436.385095][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8436.385096][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8436.385098][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8436.385099][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8436.385100][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8436.385101][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8436.385102][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8436.385103][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8436.385103][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8436.385105][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8436.385107][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8436.385108][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8436.385109][    C3] PKRU: 55555554
[ 8436.385109][    C3] Call Trace:
[ 8436.385110][    C3]  <TASK>
[ 8436.385111][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8436.385113][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8436.385115][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8436.385117][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8436.385119][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8436.385121][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8436.385124][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8436.385126][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8436.385129][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8436.385130][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8436.385133][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8436.385135][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8436.385137][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8436.385139][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8436.385141][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8436.385143][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8436.385146][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8436.385148][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8436.385150][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8436.385152][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8436.385153][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8436.385156][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8436.385158][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8436.385160][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8436.385162][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8436.385164][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8436.385165][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8436.385167][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8436.385169][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8436.385170][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8436.385173][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8436.385174][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8436.385176][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8436.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8436.385179][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8436.385181][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8436.385182][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8436.385184][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8436.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8436.385187][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8436.385190][    C3]  vfs_write (fs/read_write.c:686)
[ 8436.385192][    C3]  ksys_write (fs/read_write.c:739)
[ 8436.385193][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8436.385195][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8436.385197][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8436.385200][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8436.385201][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8436.385202][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8436.385203][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8436.385205][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8436.385205][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8436.385206][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8436.385207][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8436.385207][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8459.053070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8459.053252][    C3] rcu: 3-....: (7511351 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2835311
| [ 8459.053543][    C3] rcu: (t=7514361 jiffies g=527745 q=145269 ncpus=4)
| [ 8459.053679][    C3] Tainted: [L]=SOFTLOCKUP
[ 8459.053679][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8459.053680][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8459.053683][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8459.053684][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8459.053685][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8459.053686][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8459.053687][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8459.053688][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8459.053689][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8459.053690][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8459.053693][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8459.053694][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8459.053695][    C3] PKRU: 55555554
[ 8459.053695][    C3] Call Trace:
[ 8459.053696][    C3]  <TASK>
[ 8459.053697][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8459.053699][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8459.053701][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8459.053703][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8459.053705][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8459.053707][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8459.053710][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8459.053712][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8459.053715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8459.053716][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8459.053719][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8459.053721][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8459.053723][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8459.053725][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8459.053727][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8459.053729][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8459.053732][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8459.053733][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8459.053736][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8459.053738][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8459.053739][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8459.053742][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8459.053744][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8459.053746][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8459.053748][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8459.053749][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8459.053751][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8459.053753][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8459.053754][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8459.053756][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8459.053758][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8459.053759][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8459.053761][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8459.053763][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8459.053764][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8459.053766][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8459.053767][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8459.053769][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8459.053771][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8459.053772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8459.053775][    C3]  vfs_write (fs/read_write.c:686)
[ 8459.053777][    C3]  ksys_write (fs/read_write.c:739)
[ 8459.053778][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8459.053780][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8459.053782][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8459.053785][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8459.053786][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8459.053788][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8459.053789][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8459.053790][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8459.053791][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8459.053792][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8459.053793][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8459.053793][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8480.069504][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8480.069676][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8480.069850][    C3] NMI backtrace for cpu 3
| [ 8480.069855][    C3] Tainted: [L]=SOFTLOCKUP
[ 8480.069856][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8480.069856][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8480.069859][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8480.069860][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8480.069862][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8480.069863][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8480.069863][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8480.069864][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8480.069865][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8480.069867][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8480.069869][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8480.069870][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8480.069871][    C3] PKRU: 55555554
[ 8480.069872][    C3] Call Trace:
[ 8480.069872][    C3]  <TASK>
[ 8480.069873][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8480.069875][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8480.069877][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8480.069880][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8480.069882][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8480.069884][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8480.069886][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8480.069888][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8480.069891][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8480.069893][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8480.069895][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8480.069898][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8480.069900][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8480.069902][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8480.069904][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8480.069906][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8480.069908][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8480.069910][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8480.069912][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8480.069914][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8480.069916][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8480.069919][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8480.069921][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8480.069923][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8480.069925][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8480.069926][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8480.069927][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8480.069929][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8480.069931][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8480.069932][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8480.069935][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8480.069936][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8480.069938][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8480.069940][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8480.069941][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8480.069943][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8480.069945][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8480.069947][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8480.069948][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8480.069950][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8480.069952][    C3]  vfs_write (fs/read_write.c:686)
[ 8480.069954][    C3]  ksys_write (fs/read_write.c:739)
[ 8480.069956][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8480.069958][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8480.069960][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8480.069963][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8480.069964][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8480.069966][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8480.069967][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8480.069968][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8480.069969][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8480.069970][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8480.069971][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8480.069972][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8504.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8504.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8504.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8504.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 8504.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8504.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8504.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8504.385104][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8504.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8504.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8504.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8504.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8504.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8504.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8504.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8504.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8504.385116][    C3] PKRU: 55555554
[ 8504.385116][    C3] Call Trace:
[ 8504.385117][    C3]  <TASK>
[ 8504.385118][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8504.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8504.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8504.385125][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8504.385127][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8504.385129][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8504.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8504.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8504.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8504.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8504.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8504.385143][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8504.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8504.385147][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8504.385149][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8504.385151][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8504.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8504.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8504.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8504.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8504.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8504.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8504.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8504.385169][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8504.385171][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8504.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8504.385174][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8504.385176][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8504.385178][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8504.385179][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8504.385182][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8504.385183][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8504.385185][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8504.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8504.385188][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8504.385190][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8504.385192][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8504.385193][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8504.385195][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8504.385197][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8504.385199][    C3]  vfs_write (fs/read_write.c:686)
[ 8504.385201][    C3]  ksys_write (fs/read_write.c:739)
[ 8504.385203][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8504.385205][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8504.385207][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8504.385210][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8504.385212][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8504.385213][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8504.385215][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8504.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8504.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8504.385219][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8504.385220][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8504.385221][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8532.385087][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8532.385089][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8532.385091][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8532.385096][    C3] Tainted: [L]=SOFTLOCKUP
[ 8532.385096][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8532.385097][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8532.385099][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8532.385100][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8532.385101][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8532.385102][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8532.385103][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8532.385104][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8532.385105][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8532.385106][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8532.385109][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8532.385110][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8532.385111][    C3] PKRU: 55555554
[ 8532.385111][    C3] Call Trace:
[ 8532.385112][    C3]  <TASK>
[ 8532.385113][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8532.385115][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8532.385117][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8532.385119][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8532.385121][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8532.385123][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8532.385125][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8532.385127][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8532.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8532.385132][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8532.385134][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8532.385137][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8532.385139][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8532.385140][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8532.385142][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8532.385144][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8532.385147][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8532.385149][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8532.385151][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8532.385153][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8532.385154][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8532.385157][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8532.385159][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8532.385161][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8532.385163][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8532.385164][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8532.385166][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8532.385168][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8532.385169][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8532.385171][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8532.385173][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8532.385175][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8532.385176][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8532.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8532.385179][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8532.385181][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8532.385183][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8532.385184][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8532.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8532.385188][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8532.385190][    C3]  vfs_write (fs/read_write.c:686)
[ 8532.385192][    C3]  ksys_write (fs/read_write.c:739)
[ 8532.385194][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8532.385195][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8532.385198][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8532.385200][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8532.385202][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8532.385203][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8532.385204][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8532.385205][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8532.385206][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8532.385207][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8532.385208][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8532.385209][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8537.057070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8537.057293][    C3] rcu: 3-....: (7589324 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2869083
| [ 8537.057510][    C3] rcu: (t=7592365 jiffies g=527745 q=146766 ncpus=4)
| [ 8537.057646][    C3] Tainted: [L]=SOFTLOCKUP
[ 8537.057647][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8537.057647][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8537.057650][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8537.057651][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8537.057652][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8537.057653][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8537.057654][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8537.057655][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8537.057656][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8537.057657][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8537.057659][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8537.057660][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8537.057661][    C3] PKRU: 55555554
[ 8537.057662][    C3] Call Trace:
[ 8537.057662][    C3]  <TASK>
[ 8537.057663][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8537.057665][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8537.057667][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8537.057669][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8537.057671][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8537.057673][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8537.057675][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8537.057677][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8537.057680][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8537.057682][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8537.057684][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8537.057687][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8537.057689][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8537.057691][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8537.057693][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8537.057695][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8537.057697][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8537.057699][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8537.057701][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8537.057703][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8537.057705][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8537.057708][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8537.057710][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8537.057712][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8537.057714][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8537.057715][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8537.057717][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8537.057719][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8537.057720][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8537.057722][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8537.057724][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8537.057725][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8537.057727][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8537.057729][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8537.057730][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8537.057732][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8537.057734][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8537.057735][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8537.057737][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8537.057738][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8537.057741][    C3]  vfs_write (fs/read_write.c:686)
[ 8537.057743][    C3]  ksys_write (fs/read_write.c:739)
[ 8537.057744][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8537.057746][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8537.057748][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8537.057751][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8537.057752][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8537.057753][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8537.057754][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8537.057756][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8537.057756][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8537.057757][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8537.057758][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8537.057759][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8564.385087][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8564.385088][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8564.385090][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8564.385094][    C3] Tainted: [L]=SOFTLOCKUP
[ 8564.385094][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8564.385095][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8564.385097][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8564.385098][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8564.385099][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8564.385100][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8564.385100][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8564.385101][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8564.385102][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8564.385104][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8564.385106][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8564.385107][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8564.385107][    C3] PKRU: 55555554
[ 8564.385108][    C3] Call Trace:
[ 8564.385109][    C3]  <TASK>
[ 8564.385109][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8564.385111][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8564.385113][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8564.385116][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8564.385117][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8564.385119][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8564.385121][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8564.385123][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8564.385126][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8564.385128][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8564.385130][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8564.385133][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8564.385135][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8564.385136][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8564.385139][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8564.385140][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8564.385143][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8564.385145][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8564.385147][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8564.385149][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8564.385150][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8564.385153][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8564.385155][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8564.385157][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8564.385159][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8564.385160][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8564.385162][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8564.385163][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8564.385165][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8564.385166][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8564.385169][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8564.385170][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8564.385172][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8564.385174][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8564.385175][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8564.385177][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8564.385178][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8564.385180][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8564.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8564.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8564.385186][    C3]  vfs_write (fs/read_write.c:686)
[ 8564.385188][    C3]  ksys_write (fs/read_write.c:739)
[ 8564.385189][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8564.385191][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8564.385193][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8564.385195][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8564.385197][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8564.385198][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8564.385199][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8564.385201][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8564.385201][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8564.385202][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8564.385203][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8564.385203][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8578.373487][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8578.373659][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8578.373823][    C3] NMI backtrace for cpu 3
| [ 8578.373827][    C3] Tainted: [L]=SOFTLOCKUP
[ 8578.373827][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8578.373828][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8578.373830][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8578.373831][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8578.373832][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8578.373833][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8578.373834][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8578.373835][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8578.373835][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8578.373837][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8578.373839][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8578.373840][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8578.373841][    C3] PKRU: 55555554
[ 8578.373841][    C3] Call Trace:
[ 8578.373842][    C3]  <TASK>
[ 8578.373843][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8578.373845][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8578.373847][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8578.373849][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8578.373851][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8578.373853][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8578.373855][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8578.373857][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8578.373860][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8578.373862][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8578.373864][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8578.373867][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8578.373869][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8578.373870][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8578.373872][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8578.373874][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8578.373877][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8578.373879][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8578.373881][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8578.373883][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8578.373884][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8578.373891][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8578.373893][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8578.373895][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8578.373896][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8578.373898][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8578.373899][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8578.373901][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8578.373903][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8578.373904][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8578.373907][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8578.373908][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8578.373910][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8578.373911][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8578.373913][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8578.373915][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8578.373916][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8578.373918][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8578.373919][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8578.373921][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8578.373924][    C3]  vfs_write (fs/read_write.c:686)
[ 8578.373925][    C3]  ksys_write (fs/read_write.c:739)
[ 8578.373927][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8578.373929][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8578.373931][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8578.373933][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8578.373935][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8578.373936][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8578.373937][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8578.373938][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8578.373939][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8578.373940][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8578.373941][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8578.373941][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8604.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8604.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8604.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8604.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 8604.385099][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8604.385100][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8604.385102][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8604.385103][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8604.385105][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8604.385106][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8604.385107][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8604.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8604.385108][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8604.385110][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8604.385113][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8604.385114][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8604.385115][    C3] PKRU: 55555554
[ 8604.385115][    C3] Call Trace:
[ 8604.385116][    C3]  <TASK>
[ 8604.385117][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8604.385119][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8604.385125][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8604.385127][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8604.385129][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8604.385131][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8604.385133][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8604.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8604.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8604.385140][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8604.385142][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8604.385145][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8604.385147][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8604.385149][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8604.385151][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8604.385153][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8604.385156][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8604.385158][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8604.385160][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8604.385162][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8604.385164][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8604.385167][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8604.385169][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8604.385171][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8604.385173][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8604.385174][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8604.385175][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8604.385177][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8604.385179][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8604.385180][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8604.385183][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8604.385185][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8604.385186][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8604.385188][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8604.385190][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8604.385191][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8604.385193][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8604.385195][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8604.385196][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8604.385198][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8604.385200][    C3]  vfs_write (fs/read_write.c:686)
[ 8604.385202][    C3]  ksys_write (fs/read_write.c:739)
[ 8604.385204][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8604.385206][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8604.385209][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8604.385211][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8604.385213][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8604.385214][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8604.385215][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8604.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8604.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8604.385218][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8604.385219][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8604.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8615.061070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8615.061266][    C3] rcu: 3-....: (7667297 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2902877
| [ 8615.061531][    C3] rcu: (t=7670369 jiffies g=527745 q=148263 ncpus=4)
| [ 8615.061665][    C3] Tainted: [L]=SOFTLOCKUP
[ 8615.061665][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8615.061666][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8615.061669][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8615.061670][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8615.061671][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8615.061672][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8615.061673][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8615.061674][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8615.061675][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8615.061677][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8615.061679][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8615.061680][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8615.061681][    C3] PKRU: 55555554
[ 8615.061682][    C3] Call Trace:
[ 8615.061682][    C3]  <TASK>
[ 8615.061683][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8615.061685][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8615.061687][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8615.061689][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8615.061692][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8615.061693][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8615.061696][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8615.061698][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8615.061701][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8615.061702][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8615.061705][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8615.061707][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8615.061709][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8615.061711][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8615.061713][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8615.061715][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8615.061718][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8615.061720][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8615.061722][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8615.061724][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8615.061726][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8615.061729][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8615.061731][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8615.061733][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8615.061735][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8615.061736][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8615.061737][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8615.061739][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8615.061741][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8615.061742][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8615.061745][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8615.061746][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8615.061748][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8615.061749][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8615.061751][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8615.061753][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8615.061754][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8615.061756][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8615.061757][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8615.061759][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8615.061761][    C3]  vfs_write (fs/read_write.c:686)
[ 8615.061763][    C3]  ksys_write (fs/read_write.c:739)
[ 8615.061765][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8615.061767][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8615.061769][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8615.061771][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8615.061773][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8615.061774][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8615.061775][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8615.061776][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8615.061777][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8615.061778][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8615.061779][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8615.061779][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8640.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8640.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8640.385123][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8640.385132][    C3] Tainted: [L]=SOFTLOCKUP
[ 8640.385133][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8640.385136][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8640.385140][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8640.385142][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8640.385144][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8640.385146][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8640.385147][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8640.385148][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8640.385149][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8640.385151][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8640.385155][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8640.385156][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8640.385157][    C3] PKRU: 55555554
[ 8640.385158][    C3] Call Trace:
[ 8640.385163][    C3]  <TASK>
[ 8640.385166][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8640.385172][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8640.385174][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8640.385178][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8640.385183][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8640.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8640.385187][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8640.385190][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8640.385193][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8640.385195][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8640.385198][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8640.385200][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8640.385203][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8640.385205][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8640.385207][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8640.385209][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8640.385214][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8640.385215][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8640.385218][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8640.385220][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8640.385222][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8640.385225][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8640.385229][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8640.385231][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8640.385234][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8640.385237][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8640.385239][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8640.385241][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8640.385244][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8640.385246][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8640.385248][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8640.385250][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8640.385252][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8640.385254][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8640.385256][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8640.385259][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8640.385260][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8640.385262][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8640.385264][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8640.385265][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8640.385267][    C3]  vfs_write (fs/read_write.c:686)
[ 8640.385270][    C3]  ksys_write (fs/read_write.c:739)
[ 8640.385272][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8640.385274][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8640.385276][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8640.385280][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8640.385284][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8640.385288][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8640.385290][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8640.385292][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8640.385293][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8640.385294][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8640.385295][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8640.385296][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8668.385117][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8668.385119][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8668.385122][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8668.385131][    C3] Tainted: [L]=SOFTLOCKUP
[ 8668.385132][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8668.385135][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8668.385139][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8668.385141][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8668.385143][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8668.385144][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8668.385145][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8668.385146][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8668.385147][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8668.385150][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8668.385153][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8668.385154][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8668.385155][    C3] PKRU: 55555554
[ 8668.385156][    C3] Call Trace:
[ 8668.385160][    C3]  <TASK>
[ 8668.385164][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8668.385169][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8668.385171][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8668.385175][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8668.385179][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8668.385181][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8668.385184][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8668.385186][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8668.385190][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8668.385191][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8668.385194][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8668.385197][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8668.385199][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8668.385201][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8668.385203][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8668.385205][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8668.385209][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8668.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8668.385213][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8668.385216][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8668.385218][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8668.385221][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8668.385224][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8668.385226][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8668.385230][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8668.385232][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8668.385234][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8668.385236][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8668.385239][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8668.385240][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8668.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8668.385244][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8668.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8668.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8668.385250][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8668.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8668.385254][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8668.385256][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8668.385257][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8668.385259][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8668.385262][    C3]  vfs_write (fs/read_write.c:686)
[ 8668.385264][    C3]  ksys_write (fs/read_write.c:739)
[ 8668.385266][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8668.385268][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8668.385270][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8668.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8668.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8668.385282][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8668.385283][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8668.385285][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8668.385286][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8668.385287][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8668.385287][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8668.385288][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8676.676562][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8676.676758][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8676.676932][    C3] NMI backtrace for cpu 3
| [ 8676.676940][    C3] Tainted: [L]=SOFTLOCKUP
[ 8676.676941][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8676.676942][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8676.676945][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8676.676946][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8676.676948][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8676.676949][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8676.676950][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8676.676951][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8676.676952][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8676.676954][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8676.676956][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8676.676957][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8676.676958][    C3] PKRU: 55555554
[ 8676.676959][    C3] Call Trace:
[ 8676.676961][    C3]  <TASK>
[ 8676.676962][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8676.676964][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8676.676966][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8676.676969][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8676.676971][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8676.676973][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8676.676975][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8676.676977][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8676.676980][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8676.676982][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8676.676984][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8676.676987][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8676.676989][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8676.676991][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8676.676993][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8676.676995][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8676.676997][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8676.676999][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8676.677001][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8676.677003][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8676.677005][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8676.677008][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8676.677010][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8676.677011][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8676.677013][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8676.677015][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8676.677016][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8676.677018][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8676.677020][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8676.677021][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8676.677024][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8676.677025][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8676.677027][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8676.677029][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8676.677030][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8676.677032][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8676.677033][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8676.677035][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8676.677037][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8676.677038][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8676.677041][    C3]  vfs_write (fs/read_write.c:686)
[ 8676.677043][    C3]  ksys_write (fs/read_write.c:739)
[ 8676.677045][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8676.677047][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8676.677049][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8676.677051][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8676.677054][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8676.677056][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8676.677057][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8676.677058][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8676.677059][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8676.677060][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8676.677060][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8676.677061][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8693.065073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8693.065330][    C3] rcu: 3-....: (7745268 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2933337
| [ 8693.065656][    C3] rcu: (t=7748373 jiffies g=527745 q=149763 ncpus=4)
| [ 8693.065815][    C3] Tainted: [L]=SOFTLOCKUP
[ 8693.065816][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8693.065817][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8693.065821][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8693.065822][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8693.065825][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8693.065826][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8693.065826][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8693.065827][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8693.065828][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8693.065830][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8693.065833][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8693.065834][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8693.065835][    C3] PKRU: 55555554
[ 8693.065835][    C3] Call Trace:
[ 8693.065836][    C3]  <TASK>
[ 8693.065837][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8693.065840][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8693.065842][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8693.065844][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8693.065846][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8693.065848][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8693.065850][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8693.065852][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8693.065855][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8693.065857][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8693.065859][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8693.065861][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8693.065864][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8693.065865][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8693.065867][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8693.065869][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8693.065872][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8693.065874][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8693.065876][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8693.065878][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8693.065879][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8693.065882][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8693.065885][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8693.065886][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8693.065888][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8693.065890][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8693.065891][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8693.065893][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8693.065895][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8693.065896][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8693.065898][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8693.065900][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8693.065901][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8693.065903][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8693.065905][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8693.065906][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8693.065908][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8693.065910][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8693.065911][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8693.065913][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8693.065915][    C3]  vfs_write (fs/read_write.c:686)
[ 8693.065920][    C3]  ksys_write (fs/read_write.c:739)
[ 8693.065922][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8693.065924][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8693.065926][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8693.065928][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8693.065930][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8693.065931][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8693.065932][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8693.065934][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8693.065934][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8693.065935][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8693.065936][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8693.065936][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8720.385096][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8720.385098][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8720.385100][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8720.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 8720.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8720.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 8720.385112][    C3] Code: 89 fc 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 5f 2f 52 fe 41 0f b6 45 00 41 38 c4 7c 08 84 c0 <0f> 85 30 06 00 00 8b 03 89 44 24 48 85 c0 0f 85 8d 03 00 00 48 89
All code
========
   0:	89 fc                	mov    %edi,%esp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	41 83 e4 07          	and    $0x7,%r12d
   a:	49 01 c5             	add    %rax,%r13
   d:	41 83 c4 03          	add    $0x3,%r12d
  11:	be 04 00 00 00       	mov    $0x4,%esi
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 5f 2f 52 fe       	call   0xfffffffffe522f7d
  1e:	41 0f b6 45 00       	movzbl 0x0(%r13),%eax
  23:	41 38 c4             	cmp    %al,%r12b
  26:	7c 08                	jl     0x30
  28:	84 c0                	test   %al,%al
  2a:*	0f 85 30 06 00 00    	jne    0x660		<-- trapping instruction
  30:	8b 03                	mov    (%rbx),%eax
  32:	89 44 24 48          	mov    %eax,0x48(%rsp)
  36:	85 c0                	test   %eax,%eax
  38:	0f 85 8d 03 00 00    	jne    0x3cb
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	0f 85 30 06 00 00    	jne    0x636
   6:	8b 03                	mov    (%rbx),%eax
   8:	89 44 24 48          	mov    %eax,0x48(%rsp)
   c:	85 c0                	test   %eax,%eax
   e:	0f 85 8d 03 00 00    	jne    0x3a1
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[ 8720.385113][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000246
[ 8720.385115][    C3] RAX: 0000000000000000 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8720.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8720.385116][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8720.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8720.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8720.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8720.385124][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8720.385125][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8720.385126][    C3] PKRU: 55555554
[ 8720.385126][    C3] Call Trace:
[ 8720.385129][    C3]  <TASK>
[ 8720.385132][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8720.385135][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8720.385137][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8720.385140][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8720.385142][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8720.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8720.385146][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8720.385149][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8720.385152][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8720.385153][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8720.385156][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8720.385158][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8720.385163][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8720.385165][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8720.385167][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8720.385169][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8720.385172][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8720.385174][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8720.385176][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8720.385178][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8720.385180][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8720.385183][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8720.385185][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8720.385187][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8720.385189][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8720.385190][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8720.385191][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8720.385193][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8720.385195][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8720.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8720.385199][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8720.385200][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8720.385202][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8720.385204][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8720.385205][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8720.385207][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8720.385209][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8720.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8720.385212][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8720.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8720.385216][    C3]  vfs_write (fs/read_write.c:686)
[ 8720.385218][    C3]  ksys_write (fs/read_write.c:739)
[ 8720.385220][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8720.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8720.385224][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8720.385226][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8720.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8720.385231][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8720.385232][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8720.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8720.385235][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8720.385235][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8720.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8720.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8748.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8748.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8748.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8748.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 8748.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8748.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8748.385107][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8748.385108][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8748.385110][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8748.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8748.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8748.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8748.385113][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8748.385115][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8748.385118][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8748.385119][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8748.385119][    C3] PKRU: 55555554
[ 8748.385120][    C3] Call Trace:
[ 8748.385122][    C3]  <TASK>
[ 8748.385124][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8748.385127][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8748.385129][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8748.385131][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8748.385134][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8748.385135][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8748.385138][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8748.385140][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8748.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8748.385145][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8748.385147][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8748.385149][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8748.385152][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8748.385153][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8748.385155][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8748.385157][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8748.385160][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8748.385162][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8748.385164][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8748.385166][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8748.385168][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8748.385171][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8748.385173][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8748.385175][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8748.385177][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8748.385178][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8748.385179][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8748.385181][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8748.385183][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8748.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8748.385187][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8748.385188][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8748.385190][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8748.385192][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8748.385193][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8748.385195][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8748.385197][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8748.385199][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8748.385200][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8748.385202][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8748.385204][    C3]  vfs_write (fs/read_write.c:686)
[ 8748.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 8748.385208][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8748.385210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8748.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8748.385215][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8748.385217][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8748.385219][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8748.385220][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8748.385221][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8748.385222][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8748.385223][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8748.385223][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8748.385224][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8771.069072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8771.069279][    C3] rcu: 3-....: (7823246 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2964432
| [ 8771.069499][    C3] rcu: (t=7826377 jiffies g=527745 q=150900 ncpus=4)
| [ 8771.069665][    C3] Tainted: [L]=SOFTLOCKUP
[ 8771.069666][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8771.069667][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8771.069670][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8771.069671][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8771.069673][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8771.069674][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8771.069675][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8771.069675][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8771.069676][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8771.069678][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8771.069681][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8771.069682][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8771.069683][    C3] PKRU: 55555554
[ 8771.069683][    C3] Call Trace:
[ 8771.069684][    C3]  <TASK>
[ 8771.069685][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8771.069687][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8771.069689][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8771.069692][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8771.069694][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8771.069696][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8771.069698][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8771.069700][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8771.069703][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8771.069705][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8771.069707][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8771.069709][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8771.069712][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8771.069713][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8771.069715][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8771.069717][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8771.069720][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8771.069721][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8771.069724][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8771.069726][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8771.069727][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8771.069730][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8771.069732][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8771.069734][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8771.069736][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8771.069737][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8771.069739][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8771.069741][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8771.069742][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8771.069743][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8771.069746][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8771.069747][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8771.069749][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8771.069751][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8771.069752][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8771.069754][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8771.069756][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8771.069757][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8771.069759][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8771.069761][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8771.069763][    C3]  vfs_write (fs/read_write.c:686)
[ 8771.069765][    C3]  ksys_write (fs/read_write.c:739)
[ 8771.069767][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8771.069768][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8771.069771][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8771.069773][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8771.069775][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8771.069776][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8771.069777][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8771.069778][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8771.069779][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8771.069780][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8771.069780][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8771.069781][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8774.980448][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8774.980614][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8774.980809][    C3] NMI backtrace for cpu 3
| [ 8774.980815][    C3] Tainted: [L]=SOFTLOCKUP
[ 8774.980815][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8774.980816][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8774.980819][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8774.980820][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8774.980821][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8774.980822][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8774.980823][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8774.980824][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8774.980825][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8774.980826][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8774.980828][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8774.980829][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8774.980830][    C3] PKRU: 55555554
[ 8774.980830][    C3] Call Trace:
[ 8774.980832][    C3]  <TASK>
[ 8774.980833][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8774.980835][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8774.980837][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8774.980840][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8774.980842][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8774.980844][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8774.980846][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8774.980848][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8774.980851][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8774.980853][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8774.980855][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8774.980857][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8774.980860][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8774.980861][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8774.980863][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8774.980865][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8774.980868][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8774.980870][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8774.980872][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8774.980874][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8774.980875][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8774.980878][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8774.980880][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8774.980882][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8774.980884][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8774.980886][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8774.980887][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8774.980889][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8774.980891][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8774.980892][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8774.980895][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8774.980896][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8774.980898][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8774.980900][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8774.980901][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8774.980903][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8774.980905][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8774.980906][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8774.980908][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8774.980909][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8774.980912][    C3]  vfs_write (fs/read_write.c:686)
[ 8774.980914][    C3]  ksys_write (fs/read_write.c:739)
[ 8774.980915][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8774.980917][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8774.980919][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8774.980922][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8774.980923][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8774.980925][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8774.980926][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8774.980927][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8774.980928][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8774.980928][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8774.980929][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8774.980930][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8800.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8800.385100][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8800.385102][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8800.385107][    C3] Tainted: [L]=SOFTLOCKUP
[ 8800.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8800.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8800.385111][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8800.385112][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8800.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8800.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8800.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8800.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8800.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8800.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8800.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8800.385122][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8800.385123][    C3] PKRU: 55555554
[ 8800.385123][    C3] Call Trace:
[ 8800.385125][    C3]  <TASK>
[ 8800.385127][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8800.385129][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8800.385131][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8800.385133][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8800.385136][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8800.385138][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8800.385140][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8800.385142][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8800.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8800.385147][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8800.385149][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8800.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8800.385154][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8800.385156][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8800.385158][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8800.385160][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8800.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8800.385164][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8800.385166][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8800.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8800.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8800.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8800.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8800.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8800.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8800.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8800.385182][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8800.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8800.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8800.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8800.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8800.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8800.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8800.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8800.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8800.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8800.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8800.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8800.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8800.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8800.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 8800.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 8800.385210][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8800.385212][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8800.385214][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8800.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8800.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8800.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8800.385221][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8800.385222][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8800.385223][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8800.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8800.385224][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8800.385225][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8828.385096][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8828.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8828.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8828.385105][    C3] Tainted: [L]=SOFTLOCKUP
[ 8828.385106][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8828.385108][    C3] RIP: 0010:kasan_check_range (./arch/x86/include/asm/cpufeature.h:101 mm/kasan/kasan.h:334 mm/kasan/generic.c:188 mm/kasan/generic.c:200)
[ 8828.385110][    C3] Code: 00 00 00 00 0f 1f 40 d6 48 85 f6 0f 84 9a 01 00 00 48 89 f8 41 57 49 89 c8 48 01 f0 41 56 53 0f 82 f5 00 00 00 0f 1f 44 00 00 <48> b8 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   8:	48 85 f6             	test   %rsi,%rsi
   b:	0f 84 9a 01 00 00    	je     0x1ab
  11:	48 89 f8             	mov    %rdi,%rax
  14:	41 57                	push   %r15
  16:	49 89 c8             	mov    %rcx,%r8
  19:	48 01 f0             	add    %rsi,%rax
  1c:	41 56                	push   %r14
  1e:	53                   	push   %rbx
  1f:	0f 82 f5 00 00 00    	jb     0x11a
  25:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  2a:*	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax		<-- trapping instruction
  31:	00 00 ff 
  34:	eb 0a                	jmp    0x40
  36:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  3d:	80 ff ff 

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xff00000000000000,%rax
   7:	00 00 ff 
   a:	eb 0a                	jmp    0x16
   c:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  13:	80 ff ff 
[ 8828.385112][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000282
[ 8828.385113][    C3] RAX: ff110000110b8b4c RBX: ff110000110b8b48 RCX: ffffffffba1380f1
[ 8828.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8828.385115][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8828.385116][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8828.385117][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8828.385122][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8828.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8828.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8828.385127][    C3] PKRU: 55555554
[ 8828.385128][    C3] Call Trace:
[ 8828.385131][    C3]  <TASK>
[ 8828.385134][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 8828.385137][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8828.385139][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8828.385141][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8828.385144][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8828.385146][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8828.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8828.385150][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8828.385153][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8828.385156][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8828.385158][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8828.385161][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8828.385163][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8828.385165][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8828.385167][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8828.385169][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8828.385171][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8828.385174][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8828.385175][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8828.385178][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8828.385180][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8828.385182][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8828.385185][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8828.385187][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8828.385189][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8828.385191][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8828.385192][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8828.385193][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8828.385195][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8828.385197][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8828.385199][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8828.385201][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8828.385203][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8828.385204][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8828.385206][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8828.385207][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8828.385209][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8828.385211][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8828.385213][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8828.385214][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8828.385216][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8828.385218][    C3]  vfs_write (fs/read_write.c:686)
[ 8828.385220][    C3]  ksys_write (fs/read_write.c:739)
[ 8828.385222][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8828.385224][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8828.385226][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8828.385228][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8828.385231][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8828.385234][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8828.385235][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8828.385236][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8828.385237][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8828.385238][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8828.385239][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8828.385239][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8849.073073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8849.073275][    C3] rcu: 3-....: (7901218 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=2994810
| [ 8849.073562][    C3] rcu: (t=7904381 jiffies g=527745 q=152400 ncpus=4)
| [ 8849.073696][    C3] Tainted: [L]=SOFTLOCKUP
[ 8849.073697][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8849.073698][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8849.073701][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8849.073702][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8849.073704][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8849.073705][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8849.073706][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8849.073707][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8849.073707][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8849.073710][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8849.073713][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8849.073714][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8849.073714][    C3] PKRU: 55555554
[ 8849.073715][    C3] Call Trace:
[ 8849.073716][    C3]  <TASK>
[ 8849.073717][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8849.073719][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8849.073721][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8849.073724][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8849.073726][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8849.073728][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8849.073730][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8849.073732][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8849.073735][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8849.073737][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8849.073739][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8849.073742][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8849.073744][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8849.073745][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8849.073748][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8849.073750][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8849.073752][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8849.073754][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8849.073756][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8849.073758][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8849.073759][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8849.073762][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8849.073765][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8849.073766][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8849.073768][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8849.073770][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8849.073771][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8849.073773][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8849.073775][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8849.073776][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8849.073778][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8849.073780][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8849.073781][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8849.073783][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8849.073784][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8849.073786][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8849.073788][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8849.073790][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8849.073791][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8849.073792][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8849.073795][    C3]  vfs_write (fs/read_write.c:686)
[ 8849.073797][    C3]  ksys_write (fs/read_write.c:739)
[ 8849.073799][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8849.073800][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8849.073803][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8849.073805][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8849.073806][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8849.073808][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8849.073809][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8849.073810][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8849.073811][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8849.073812][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8849.073812][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8849.073813][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8873.284583][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8873.284780][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8873.284995][    C3] NMI backtrace for cpu 3
| [ 8873.285002][    C3] Tainted: [L]=SOFTLOCKUP
[ 8873.285003][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8873.285004][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8873.285007][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8873.285008][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8873.285010][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8873.285011][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8873.285012][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8873.285013][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8873.285014][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8873.285016][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8873.285018][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8873.285019][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8873.285020][    C3] PKRU: 55555554
[ 8873.285021][    C3] Call Trace:
[ 8873.285023][    C3]  <TASK>
[ 8873.285025][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8873.285027][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8873.285029][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8873.285031][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8873.285033][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8873.285035][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8873.285037][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8873.285040][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8873.285043][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8873.285044][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8873.285046][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8873.285049][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8873.285051][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8873.285053][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8873.285055][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8873.285057][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8873.285059][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8873.285061][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8873.285063][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8873.285065][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8873.285067][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8873.285073][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8873.285075][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8873.285077][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8873.285079][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8873.285080][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8873.285082][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8873.285084][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8873.285086][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8873.285087][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8873.285089][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8873.285091][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8873.285092][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8873.285094][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8873.285096][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8873.285097][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8873.285099][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8873.285101][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8873.285103][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8873.285104][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8873.285106][    C3]  vfs_write (fs/read_write.c:686)
[ 8873.285109][    C3]  ksys_write (fs/read_write.c:739)
[ 8873.285110][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8873.285112][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8873.285114][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8873.285117][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8873.285119][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8873.285121][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8873.285122][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8873.285123][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8873.285124][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8873.285124][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8873.285125][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8873.285126][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8900.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8900.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8900.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8900.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 8900.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8900.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8900.385113][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8900.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8900.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8900.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8900.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8900.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8900.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8900.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8900.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8900.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8900.385125][    C3] PKRU: 55555554
[ 8900.385126][    C3] Call Trace:
[ 8900.385128][    C3]  <TASK>
[ 8900.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8900.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8900.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8900.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8900.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8900.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8900.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8900.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8900.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8900.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8900.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8900.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8900.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8900.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8900.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8900.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8900.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8900.385168][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8900.385170][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8900.385172][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8900.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8900.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8900.385179][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8900.385181][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8900.385183][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8900.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8900.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8900.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8900.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8900.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8900.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8900.385195][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8900.385196][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8900.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8900.385200][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8900.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8900.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8900.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8900.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8900.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8900.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 8900.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 8900.385214][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8900.385216][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8900.385218][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8900.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8900.385223][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8900.385225][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8900.385226][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8900.385227][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8900.385228][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8900.385228][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8900.385229][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8900.385230][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8927.077071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 8927.077268][    C3] rcu: 3-....: (7979198 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3024172
| [ 8927.077567][    C3] rcu: (t=7982385 jiffies g=527745 q=153507 ncpus=4)
| [ 8927.077705][    C3] Tainted: [L]=SOFTLOCKUP
[ 8927.077706][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8927.077706][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8927.077709][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8927.077711][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8927.077712][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8927.077713][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8927.077714][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8927.077714][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8927.077715][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8927.077717][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8927.077720][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8927.077721][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8927.077722][    C3] PKRU: 55555554
[ 8927.077722][    C3] Call Trace:
[ 8927.077723][    C3]  <TASK>
[ 8927.077724][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8927.077726][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8927.077728][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8927.077731][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8927.077733][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8927.077735][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8927.077737][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8927.077739][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8927.077742][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8927.077743][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8927.077746][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8927.077748][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8927.077750][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8927.077752][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8927.077754][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8927.077756][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8927.077759][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8927.077760][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8927.077762][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8927.077764][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8927.077766][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8927.077769][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8927.077771][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8927.077773][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8927.077775][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8927.077776][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8927.077777][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8927.077779][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8927.077781][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8927.077782][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8927.077785][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8927.077786][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8927.077788][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8927.077790][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8927.077791][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8927.077793][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8927.077794][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8927.077796][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8927.077798][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8927.077799][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8927.077802][    C3]  vfs_write (fs/read_write.c:686)
[ 8927.077803][    C3]  ksys_write (fs/read_write.c:739)
[ 8927.077805][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8927.077807][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8927.077809][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8927.077812][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8927.077813][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8927.077814][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8927.077815][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8927.077817][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8927.077817][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8927.077818][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8927.077819][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8927.077819][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8952.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8952.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8952.385097][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8952.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 8952.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8952.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8952.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8952.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8952.385109][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8952.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8952.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8952.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8952.385112][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8952.385114][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8952.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8952.385118][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8952.385119][    C3] PKRU: 55555554
[ 8952.385120][    C3] Call Trace:
[ 8952.385122][    C3]  <TASK>
[ 8952.385125][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8952.385127][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8952.385129][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8952.385132][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8952.385134][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8952.385136][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8952.385138][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8952.385141][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8952.385144][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8952.385145][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8952.385148][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8952.385150][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8952.385152][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8952.385154][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8952.385156][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8952.385158][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8952.385161][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8952.385163][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8952.385165][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8952.385167][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8952.385168][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8952.385172][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8952.385174][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8952.385176][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8952.385178][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8952.385179][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8952.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8952.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8952.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8952.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8952.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8952.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8952.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8952.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8952.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8952.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8952.385198][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8952.385200][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8952.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8952.385203][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8952.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 8952.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 8952.385209][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8952.385211][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8952.385213][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8952.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8952.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8952.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8952.385224][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8952.385226][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8952.385227][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8952.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8952.385228][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8952.385229][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8971.589516][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 8971.589726][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 8971.589937][    C3] NMI backtrace for cpu 3
| [ 8971.589945][    C3] Tainted: [L]=SOFTLOCKUP
[ 8971.589946][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8971.589947][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8971.589951][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8971.589952][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8971.589953][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8971.589954][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8971.589955][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8971.589956][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8971.589956][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8971.589958][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8971.589961][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8971.589962][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8971.589963][    C3] PKRU: 55555554
[ 8971.589963][    C3] Call Trace:
[ 8971.589965][    C3]  <TASK>
[ 8971.589968][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8971.589970][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8971.589972][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8971.589975][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8971.589977][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8971.589979][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8971.589981][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8971.589983][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8971.589986][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8971.589988][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8971.589990][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8971.589993][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8971.589995][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8971.589996][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8971.589998][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8971.590000][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8971.590003][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8971.590005][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8971.590007][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8971.590009][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8971.590011][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8971.590014][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8971.590016][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8971.590018][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8971.590020][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8971.590021][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8971.590023][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8971.590024][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8971.590026][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8971.590028][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8971.590030][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8971.590032][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8971.590033][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8971.590035][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8971.590036][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8971.590038][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8971.590040][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8971.590042][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8971.590043][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8971.590045][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8971.590047][    C3]  vfs_write (fs/read_write.c:686)
[ 8971.590049][    C3]  ksys_write (fs/read_write.c:739)
[ 8971.590051][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8971.590053][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8971.590055][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8971.590057][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8971.590060][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8971.590062][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8971.590063][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8971.590064][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8971.590065][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8971.590066][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8971.590066][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8971.590067][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 8996.385100][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 8996.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 8996.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 8996.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 8996.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 8996.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 8996.385114][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 8996.385115][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 8996.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 8996.385117][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 8996.385118][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 8996.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 8996.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 8996.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 8996.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8996.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 8996.385125][    C3] PKRU: 55555554
[ 8996.385126][    C3] Call Trace:
[ 8996.385128][    C3]  <TASK>
[ 8996.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 8996.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 8996.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 8996.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 8996.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 8996.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8996.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 8996.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 8996.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 8996.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 8996.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 8996.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 8996.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 8996.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 8996.385160][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 8996.385162][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 8996.385165][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 8996.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8996.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 8996.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 8996.385172][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 8996.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8996.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 8996.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 8996.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 8996.385183][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8996.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 8996.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 8996.385188][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 8996.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8996.385192][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 8996.385193][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 8996.385195][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 8996.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 8996.385198][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 8996.385200][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 8996.385201][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 8996.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 8996.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 8996.385206][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 8996.385209][    C3]  vfs_write (fs/read_write.c:686)
[ 8996.385211][    C3]  ksys_write (fs/read_write.c:739)
[ 8996.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 8996.385214][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 8996.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 8996.385219][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 8996.385221][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 8996.385223][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 8996.385224][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 8996.385225][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 8996.385226][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 8996.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 8996.385227][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 8996.385228][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9005.081071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9005.081266][    C3] rcu: 3-....: (8057169 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3053814
| [ 9005.081477][    C3] rcu: (t=8060389 jiffies g=527745 q=155004 ncpus=4)
| [ 9005.081612][    C3] Tainted: [L]=SOFTLOCKUP
[ 9005.081613][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9005.081614][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9005.081616][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9005.081617][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9005.081619][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9005.081620][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9005.081620][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9005.081621][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9005.081622][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9005.081624][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9005.081626][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9005.081627][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9005.081628][    C3] PKRU: 55555554
[ 9005.081628][    C3] Call Trace:
[ 9005.081629][    C3]  <TASK>
[ 9005.081630][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9005.081632][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9005.081634][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9005.081637][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9005.081639][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9005.081641][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9005.081643][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9005.081645][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9005.081648][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9005.081649][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9005.081652][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9005.081654][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9005.081656][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9005.081658][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9005.081660][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9005.081662][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9005.081664][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9005.081666][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9005.081668][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9005.081670][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9005.081672][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9005.081675][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9005.081677][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9005.081679][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9005.081681][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9005.081682][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9005.081683][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9005.081685][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9005.081687][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9005.081688][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9005.081694][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9005.081695][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9005.081697][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9005.081699][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9005.081700][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9005.081702][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9005.081703][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9005.081705][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9005.081707][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9005.081708][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9005.081711][    C3]  vfs_write (fs/read_write.c:686)
[ 9005.081713][    C3]  ksys_write (fs/read_write.c:739)
[ 9005.081714][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9005.081716][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9005.081718][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9005.081721][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9005.081722][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9005.081724][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9005.081725][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9005.081726][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9005.081727][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9005.081728][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9005.081728][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9005.081729][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9032.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9032.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9032.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9032.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 9032.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9032.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9032.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9032.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9032.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9032.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9032.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9032.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9032.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9032.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9032.385116][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9032.385117][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9032.385118][    C3] PKRU: 55555554
[ 9032.385118][    C3] Call Trace:
[ 9032.385120][    C3]  <TASK>
[ 9032.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9032.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9032.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9032.385130][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9032.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9032.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9032.385136][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9032.385138][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9032.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9032.385143][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9032.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9032.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9032.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9032.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9032.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9032.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9032.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9032.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9032.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9032.385164][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9032.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9032.385169][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9032.385171][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9032.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9032.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9032.385176][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9032.385177][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9032.385179][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9032.385181][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9032.385183][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9032.385185][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9032.385186][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9032.385188][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9032.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9032.385191][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9032.385193][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9032.385195][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9032.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9032.385198][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9032.385199][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9032.385202][    C3]  vfs_write (fs/read_write.c:686)
[ 9032.385204][    C3]  ksys_write (fs/read_write.c:739)
[ 9032.385206][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9032.385207][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9032.385210][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9032.385212][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9032.385214][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9032.385216][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9032.385217][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9032.385219][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9032.385219][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9032.385220][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9032.385221][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9032.385222][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9060.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9060.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9060.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9060.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 9060.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9060.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9060.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9060.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9060.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9060.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9060.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9060.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9060.385112][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9060.385114][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9060.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9060.385117][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9060.385118][    C3] PKRU: 55555554
[ 9060.385119][    C3] Call Trace:
[ 9060.385121][    C3]  <TASK>
[ 9060.385124][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9060.385126][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9060.385128][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9060.385131][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9060.385133][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9060.385135][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9060.385137][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9060.385139][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9060.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9060.385144][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9060.385146][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9060.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9060.385151][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9060.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9060.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9060.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9060.385159][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9060.385161][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9060.385163][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9060.385165][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9060.385167][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9060.385170][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9060.385172][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9060.385174][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9060.385176][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9060.385177][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9060.385178][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9060.385180][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9060.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9060.385187][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9060.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9060.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9060.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9060.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9060.385195][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9060.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9060.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9060.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9060.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9060.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9060.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 9060.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 9060.385210][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9060.385211][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9060.385214][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9060.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9060.385218][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9060.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9060.385221][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9060.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9060.385223][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9060.385224][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9060.385225][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9060.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9069.892539][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9069.892769][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9069.892936][    C3] NMI backtrace for cpu 3
| [ 9069.892944][    C3] Tainted: [L]=SOFTLOCKUP
[ 9069.892945][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9069.892946][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9069.892950][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9069.892951][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9069.892953][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9069.892954][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9069.892955][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9069.892956][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9069.892956][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9069.892958][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9069.892961][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9069.892962][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9069.892963][    C3] PKRU: 55555554
[ 9069.892964][    C3] Call Trace:
[ 9069.892966][    C3]  <TASK>
[ 9069.892968][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9069.892970][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9069.892972][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9069.892975][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9069.892977][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9069.892979][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9069.892982][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9069.892985][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9069.892987][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9069.892989][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9069.892992][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9069.892994][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9069.892996][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9069.892998][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9069.893000][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9069.893002][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9069.893005][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9069.893006][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9069.893009][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9069.893011][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9069.893013][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9069.893016][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9069.893018][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9069.893020][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9069.893022][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9069.893023][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9069.893024][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9069.893026][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9069.893028][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9069.893029][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9069.893032][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9069.893034][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9069.893035][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9069.893037][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9069.893038][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9069.893040][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9069.893042][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9069.893044][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9069.893045][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9069.893047][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9069.893049][    C3]  vfs_write (fs/read_write.c:686)
[ 9069.893051][    C3]  ksys_write (fs/read_write.c:739)
[ 9069.893053][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9069.893055][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9069.893057][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9069.893060][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9069.893062][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9069.893064][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9069.893065][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9069.893066][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9069.893067][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9069.893068][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9069.893071][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9069.893072][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9083.085073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9083.085327][    C3] rcu: 3-....: (8135141 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3083430
| [ 9083.085710][    C3] rcu: (t=8138393 jiffies g=527745 q=156501 ncpus=4)
| [ 9083.085847][    C3] Tainted: [L]=SOFTLOCKUP
[ 9083.085848][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9083.085849][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9083.085854][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9083.085856][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9083.085859][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9083.085860][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9083.085861][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9083.085862][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9083.085863][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9083.085865][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9083.085868][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9083.085870][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9083.085871][    C3] PKRU: 55555554
[ 9083.085871][    C3] Call Trace:
[ 9083.085872][    C3]  <TASK>
[ 9083.085873][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9083.085876][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9083.085878][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9083.085880][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9083.085883][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9083.085884][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9083.085887][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9083.085889][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9083.085892][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9083.085893][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9083.085896][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9083.085898][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9083.085900][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9083.085902][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9083.085904][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9083.085906][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9083.085909][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9083.085910][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9083.085913][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9083.085915][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9083.085916][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9083.085919][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9083.085921][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9083.085923][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9083.085925][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9083.085927][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9083.085928][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9083.085930][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9083.085932][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9083.085933][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9083.085936][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9083.085937][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9083.085939][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9083.085941][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9083.085942][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9083.085944][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9083.085945][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9083.085947][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9083.085949][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9083.085950][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9083.085952][    C3]  vfs_write (fs/read_write.c:686)
[ 9083.085954][    C3]  ksys_write (fs/read_write.c:739)
[ 9083.085956][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9083.085958][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9083.085960][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9083.085962][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9083.085964][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9083.085966][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9083.085967][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9083.085969][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9083.085970][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9083.085971][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9083.085971][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9083.085972][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9108.385097][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9108.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9108.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9108.385108][    C3] Tainted: [L]=SOFTLOCKUP
[ 9108.385109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9108.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9108.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9108.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9108.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9108.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9108.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9108.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9108.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9108.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9108.385124][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9108.385125][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9108.385126][    C3] PKRU: 55555554
[ 9108.385127][    C3] Call Trace:
[ 9108.385129][    C3]  <TASK>
[ 9108.385131][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9108.385134][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9108.385136][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9108.385138][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9108.385141][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9108.385143][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9108.385145][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9108.385147][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9108.385150][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9108.385152][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9108.385154][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9108.385157][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9108.385159][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9108.385161][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9108.385163][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9108.385165][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9108.385168][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9108.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9108.385172][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9108.385174][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9108.385176][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9108.385179][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9108.385181][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9108.385183][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9108.385185][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9108.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9108.385188][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9108.385190][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9108.385191][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9108.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9108.385195][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9108.385197][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9108.385199][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9108.385200][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9108.385202][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9108.385204][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9108.385205][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9108.385207][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9108.385209][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9108.385210][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9108.385213][    C3]  vfs_write (fs/read_write.c:686)
[ 9108.385215][    C3]  ksys_write (fs/read_write.c:739)
[ 9108.385216][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9108.385218][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9108.385221][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9108.385223][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9108.385226][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9108.385228][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9108.385229][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9108.385230][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9108.385231][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9108.385232][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9108.385233][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9108.385234][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9136.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9136.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9136.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9136.385102][    C3] Tainted: [L]=SOFTLOCKUP
[ 9136.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9136.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9136.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9136.385108][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9136.385109][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9136.385111][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9136.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9136.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9136.385113][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9136.385116][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9136.385118][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9136.385120][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9136.385120][    C3] PKRU: 55555554
[ 9136.385121][    C3] Call Trace:
[ 9136.385124][    C3]  <TASK>
[ 9136.385126][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9136.385128][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9136.385130][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9136.385133][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9136.385135][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9136.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9136.385139][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9136.385142][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9136.385145][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9136.385146][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9136.385149][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9136.385152][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9136.385154][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9136.385155][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9136.385157][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9136.385159][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9136.385162][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9136.385164][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9136.385166][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9136.385168][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9136.385170][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9136.385173][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9136.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9136.385177][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9136.385179][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9136.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9136.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9136.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9136.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9136.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9136.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9136.385191][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9136.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9136.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9136.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9136.385197][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9136.385199][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9136.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9136.385202][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9136.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9136.385206][    C3]  vfs_write (fs/read_write.c:686)
[ 9136.385208][    C3]  ksys_write (fs/read_write.c:739)
[ 9136.385210][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9136.385212][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9136.385214][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9136.385216][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9136.385219][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9136.385220][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9136.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9136.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9136.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9136.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9136.385225][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9136.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9161.089072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9161.089287][    C3] rcu: 3-....: (8213119 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3112517
| [ 9161.089554][    C3] rcu: (t=8216397 jiffies g=527745 q=157638 ncpus=4)
| [ 9161.089724][    C3] Tainted: [L]=SOFTLOCKUP
[ 9161.089724][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9161.089726][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9161.089729][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9161.089731][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9161.089733][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9161.089734][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9161.089735][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9161.089736][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9161.089736][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9161.089739][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9161.089741][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9161.089742][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9161.089743][    C3] PKRU: 55555554
[ 9161.089744][    C3] Call Trace:
[ 9161.089745][    C3]  <TASK>
[ 9161.089746][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9161.089748][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9161.089750][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9161.089753][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9161.089755][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9161.089757][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9161.089759][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9161.089761][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9161.089764][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9161.089765][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9161.089768][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9161.089770][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9161.089772][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9161.089774][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9161.089776][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9161.089778][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9161.089781][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9161.089782][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9161.089784][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9161.089786][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9161.089788][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9161.089791][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9161.089793][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9161.089795][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9161.089797][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9161.089798][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9161.089799][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9161.089801][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9161.089803][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9161.089804][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9161.089807][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9161.089808][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9161.089810][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9161.089811][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9161.089813][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9161.089815][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9161.089816][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9161.089818][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9161.089820][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9161.089821][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9161.089823][    C3]  vfs_write (fs/read_write.c:686)
[ 9161.089825][    C3]  ksys_write (fs/read_write.c:739)
[ 9161.089827][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9161.089829][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9161.089831][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9161.089833][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9161.089835][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9161.089836][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9161.089838][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9161.089839][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9161.089840][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9161.089841][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9161.089842][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9161.089842][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9168.196511][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9168.196685][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9168.196846][    C3] NMI backtrace for cpu 3
| [ 9168.196853][    C3] Tainted: [L]=SOFTLOCKUP
[ 9168.196854][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9168.196855][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9168.196858][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9168.196859][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9168.196861][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9168.196862][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9168.196863][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9168.196863][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9168.196864][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9168.196866][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9168.196868][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9168.196869][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9168.196870][    C3] PKRU: 55555554
[ 9168.196871][    C3] Call Trace:
[ 9168.196872][    C3]  <TASK>
[ 9168.196874][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9168.196876][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9168.196878][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9168.196880][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9168.196883][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9168.196884][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9168.196887][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9168.196889][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9168.196892][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9168.196893][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9168.196895][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9168.196898][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9168.196900][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9168.196902][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9168.196904][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9168.196906][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9168.196908][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9168.196910][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9168.196912][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9168.196914][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9168.196916][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9168.196919][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9168.196921][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9168.196922][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9168.196924][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9168.196926][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9168.196927][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9168.196929][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9168.196931][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9168.196932][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9168.196934][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9168.196936][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9168.196938][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9168.196939][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9168.196941][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9168.196943][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9168.196944][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9168.196946][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9168.196948][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9168.196949][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9168.196952][    C3]  vfs_write (fs/read_write.c:686)
[ 9168.196954][    C3]  ksys_write (fs/read_write.c:739)
[ 9168.196955][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9168.196957][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9168.196959][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9168.196962][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9168.196964][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9168.196965][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9168.196966][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9168.196967][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9168.196968][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9168.196969][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9168.196970][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9168.196970][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9192.385101][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9192.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9192.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9192.385111][    C3] Tainted: [L]=SOFTLOCKUP
[ 9192.385112][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9192.385114][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:114 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 9192.385116][    C3] Code: 4c 37 ff 48 89 f9 4c 8d 74 37 ff 48 b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08 01 49 8d 1c 01 4c 8d 0c 01 <4c> 89 d1 4c 29 c9 4c 89 c8 48 83 f9 10 0f 8e f4 00 00 00 45 89 cb
All code
========
   0:	4c 37                	rex.WR (bad)
   2:	ff 48 89             	decl   -0x77(%rax)
   5:	f9                   	stc
   6:	4c 8d 74 37 ff       	lea    -0x1(%rdi,%rsi,1),%r14
   b:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  12:	fc ff df 
  15:	49 c1 e9 03          	shr    $0x3,%r9
  19:	48 c1 e9 03          	shr    $0x3,%rcx
  1d:	4e 8d 54 08 01       	lea    0x1(%rax,%r9,1),%r10
  22:	49 8d 1c 01          	lea    (%r9,%rax,1),%rbx
  26:	4c 8d 0c 01          	lea    (%rcx,%rax,1),%r9
  2a:*	4c 89 d1             	mov    %r10,%rcx		<-- trapping instruction
  2d:	4c 29 c9             	sub    %r9,%rcx
  30:	4c 89 c8             	mov    %r9,%rax
  33:	48 83 f9 10          	cmp    $0x10,%rcx
  37:	0f 8e f4 00 00 00    	jle    0x131
  3d:	45 89 cb             	mov    %r9d,%r11d

Code starting with the faulting instruction
===========================================
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 29 c9             	sub    %r9,%rcx
   6:	4c 89 c8             	mov    %r9,%rax
   9:	48 83 f9 10          	cmp    $0x10,%rcx
   d:	0f 8e f4 00 00 00    	jle    0x107
  13:	45 89 cb             	mov    %r9d,%r11d
[ 9192.385118][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000216
[ 9192.385119][    C3] RAX: dffffc0000000000 RBX: ffe21c0002217169 RCX: 1fe2200002217169
[ 9192.385120][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9192.385121][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9192.385122][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9192.385123][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 9192.385125][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9192.385128][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9192.385129][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9192.385129][    C3] PKRU: 55555554
[ 9192.385130][    C3] Call Trace:
[ 9192.385133][    C3]  <TASK>
[ 9192.385136][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 9192.385138][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9192.385140][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9192.385142][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9192.385145][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9192.385147][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9192.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9192.385151][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9192.385153][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9192.385156][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9192.385158][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9192.385160][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9192.385163][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9192.385165][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9192.385166][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9192.385168][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9192.385171][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9192.385173][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9192.385175][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9192.385177][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9192.385179][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9192.385181][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9192.385184][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9192.385186][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9192.385188][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9192.385190][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9192.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9192.385193][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9192.385194][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9192.385196][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9192.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9192.385200][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9192.385201][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9192.385203][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9192.385205][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9192.385206][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9192.385208][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9192.385210][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9192.385211][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9192.385213][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9192.385214][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9192.385217][    C3]  vfs_write (fs/read_write.c:686)
[ 9192.385219][    C3]  ksys_write (fs/read_write.c:739)
[ 9192.385221][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9192.385222][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9192.385225][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9192.385227][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9192.385229][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9192.385231][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9192.385232][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9192.385234][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9192.385235][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9192.385236][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9192.385236][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9192.385237][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9220.385095][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9220.385097][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9220.385099][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9220.385106][    C3] Tainted: [L]=SOFTLOCKUP
[ 9220.385107][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9220.385107][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9220.385110][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9220.385111][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9220.385113][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9220.385114][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9220.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9220.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9220.385116][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9220.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9220.385122][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9220.385123][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9220.385123][    C3] PKRU: 55555554
[ 9220.385124][    C3] Call Trace:
[ 9220.385127][    C3]  <TASK>
[ 9220.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9220.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9220.385135][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9220.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9220.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9220.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9220.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9220.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9220.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9220.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9220.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9220.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9220.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9220.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9220.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9220.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9220.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9220.385168][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9220.385170][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9220.385172][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9220.385174][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9220.385177][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9220.385179][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9220.385181][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9220.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9220.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9220.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9220.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9220.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9220.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9220.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9220.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9220.385196][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9220.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9220.385199][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9220.385201][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9220.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9220.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9220.385206][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9220.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9220.385210][    C3]  vfs_write (fs/read_write.c:686)
[ 9220.385212][    C3]  ksys_write (fs/read_write.c:739)
[ 9220.385214][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9220.385216][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9220.385218][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9220.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9220.385223][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9220.385225][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9220.385226][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9220.385227][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9220.385228][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9220.385229][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9220.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9220.385230][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9239.093072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9239.093267][    C3] rcu: 3-....: (8291091 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3143325
| [ 9239.093481][    C3] rcu: (t=8294401 jiffies g=527745 q=159138 ncpus=4)
| [ 9239.093665][    C3] Tainted: [L]=SOFTLOCKUP
[ 9239.093666][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9239.093667][    C3] RIP: 0010:kasan_check_range (./include/linux/kasan.h:65 mm/kasan/generic.c:141 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 9239.093669][    C3] Code: 00 00 00 00 00 00 00 ff eb 0a 48 b8 00 00 00 00 00 80 ff ff 48 39 c7 0f 82 d1 00 00 00 4c 8d 4c 37 ff 48 89 f9 4c 8d 74 37 ff <48> b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 00                	add    %al,(%rax)
   4:	00 00                	add    %al,(%rax)
   6:	00 ff                	add    %bh,%bh
   8:	eb 0a                	jmp    0x14
   a:	48 b8 00 00 00 00 00 	movabs $0xffff800000000000,%rax
  11:	80 ff ff 
  14:	48 39 c7             	cmp    %rax,%rdi
  17:	0f 82 d1 00 00 00    	jb     0xee
  1d:	4c 8d 4c 37 ff       	lea    -0x1(%rdi,%rsi,1),%r9
  22:	48 89 f9             	mov    %rdi,%rcx
  25:	4c 8d 74 37 ff       	lea    -0x1(%rdi,%rsi,1),%r14
  2a:*	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax		<-- trapping instruction
  31:	fc ff df 
  34:	49 c1 e9 03          	shr    $0x3,%r9
  38:	48 c1 e9 03          	shr    $0x3,%rcx
  3c:	4e                   	rex.WRX
  3d:	8d                   	.byte 0x8d
  3e:	54                   	push   %rsp
  3f:	08                   	.byte 0x8

Code starting with the faulting instruction
===========================================
   0:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   7:	fc ff df 
   a:	49 c1 e9 03          	shr    $0x3,%r9
   e:	48 c1 e9 03          	shr    $0x3,%rcx
  12:	4e                   	rex.WRX
  13:	8d                   	.byte 0x8d
  14:	54                   	push   %rsp
  15:	08                   	.byte 0x8
[ 9239.093671][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000206
[ 9239.093672][    C3] RAX: ff00000000000000 RBX: ff110000110b8b48 RCX: ff110000110b8b48
[ 9239.093673][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9239.093674][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ff110000110b8b4b
[ 9239.093675][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9239.093675][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 9239.093677][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9239.093680][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9239.093681][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9239.093682][    C3] PKRU: 55555554
[ 9239.093682][    C3] Call Trace:
[ 9239.093683][    C3]  <TASK>
[ 9239.093684][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 9239.093687][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9239.093689][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9239.093691][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9239.093693][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9239.093695][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9239.093697][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9239.093699][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9239.093701][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9239.093704][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9239.093706][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9239.093708][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9239.093711][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9239.093713][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9239.093714][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9239.093716][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9239.093718][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9239.093721][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9239.093722][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9239.093724][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9239.093726][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9239.093728][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9239.093731][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9239.093733][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9239.093735][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9239.093737][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9239.093738][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9239.093739][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9239.093741][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9239.093743][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9239.093744][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9239.093746][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9239.093748][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9239.093749][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9239.093751][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9239.093753][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9239.093754][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9239.093756][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9239.093757][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9239.093759][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9239.093760][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9239.093763][    C3]  vfs_write (fs/read_write.c:686)
[ 9239.093765][    C3]  ksys_write (fs/read_write.c:739)
[ 9239.093766][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9239.093768][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9239.093770][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9239.093773][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9239.093774][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9239.093775][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9239.093776][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9239.093778][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9239.093778][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9239.093779][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9239.093780][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9239.093780][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9264.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9264.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9264.385097][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9264.385103][    C3] Tainted: [L]=SOFTLOCKUP
[ 9264.385104][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9264.385105][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9264.385107][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9264.385108][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9264.385109][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9264.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9264.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9264.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9264.385112][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9264.385114][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9264.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9264.385118][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9264.385119][    C3] PKRU: 55555554
[ 9264.385119][    C3] Call Trace:
[ 9264.385121][    C3]  <TASK>
[ 9264.385124][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9264.385126][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9264.385128][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9264.385130][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9264.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9264.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9264.385136][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9264.385139][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9264.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9264.385143][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9264.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9264.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9264.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9264.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9264.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9264.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9264.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9264.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9264.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9264.385164][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9264.385165][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9264.385168][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9264.385170][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9264.385172][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9264.385174][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9264.385175][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9264.385177][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9264.385178][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9264.385180][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9264.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9264.385184][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9264.385185][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9264.385187][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9264.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9264.385190][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9264.385192][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9264.385193][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9264.385195][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9264.385197][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9264.385198][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9264.385201][    C3]  vfs_write (fs/read_write.c:686)
[ 9264.385203][    C3]  ksys_write (fs/read_write.c:739)
[ 9264.385204][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9264.385206][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9264.385208][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9264.385211][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9264.385213][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9264.385215][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9264.385216][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9264.385217][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9264.385218][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9264.385218][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9264.385219][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9264.385220][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9266.500529][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9266.500704][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9266.500862][    C3] NMI backtrace for cpu 3
| [ 9266.500868][    C3] Tainted: [L]=SOFTLOCKUP
[ 9266.500869][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9266.500870][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9266.500873][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9266.500874][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9266.500876][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9266.500877][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9266.500877][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9266.500878][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9266.500879][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9266.500881][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9266.500883][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9266.500883][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9266.500884][    C3] PKRU: 55555554
[ 9266.500885][    C3] Call Trace:
[ 9266.500886][    C3]  <TASK>
[ 9266.500887][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9266.500889][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9266.500891][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9266.500894][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9266.500896][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9266.500898][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9266.500900][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9266.500903][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9266.500906][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9266.500907][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9266.500909][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9266.500912][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9266.500914][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9266.500916][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9266.500918][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9266.500920][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9266.500922][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9266.500924][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9266.500926][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9266.500928][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9266.500930][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9266.500933][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9266.500935][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9266.500936][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9266.500938][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9266.500940][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9266.500941][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9266.500943][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9266.500945][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9266.500946][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9266.500948][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9266.500950][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9266.500952][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9266.500953][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9266.500955][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9266.500957][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9266.500958][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9266.500960][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9266.500962][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9266.500963][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9266.500965][    C3]  vfs_write (fs/read_write.c:686)
[ 9266.500967][    C3]  ksys_write (fs/read_write.c:739)
[ 9266.500969][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9266.500971][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9266.500973][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9266.500975][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9266.500977][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9266.500978][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9266.500979][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9266.500981][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9266.500981][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9266.500982][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9266.500983][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9266.500983][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9292.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9292.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9292.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9292.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 9292.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9292.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9292.385113][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9292.385115][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9292.385116][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9292.385117][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9292.385118][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9292.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9292.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9292.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9292.385124][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9292.385125][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9292.385125][    C3] PKRU: 55555554
[ 9292.385126][    C3] Call Trace:
[ 9292.385128][    C3]  <TASK>
[ 9292.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9292.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9292.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9292.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9292.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9292.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9292.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9292.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9292.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9292.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9292.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9292.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9292.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9292.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9292.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9292.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9292.385166][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9292.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9292.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9292.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9292.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9292.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9292.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9292.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9292.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9292.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9292.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9292.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9292.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9292.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9292.385192][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9292.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9292.385195][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9292.385197][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9292.385199][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9292.385201][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9292.385202][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9292.385204][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9292.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9292.385207][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9292.385210][    C3]  vfs_write (fs/read_write.c:686)
[ 9292.385212][    C3]  ksys_write (fs/read_write.c:739)
[ 9292.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9292.385215][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9292.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9292.385220][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9292.385222][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9292.385224][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9292.385225][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9292.385226][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9292.385227][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9292.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9292.385228][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9292.385229][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9317.097072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9317.097293][    C3] rcu: 3-....: (8369062 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3173811
| [ 9317.097567][    C3] rcu: (t=8372405 jiffies g=527745 q=160638 ncpus=4)
| [ 9317.097703][    C3] Tainted: [L]=SOFTLOCKUP
[ 9317.097704][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9317.097705][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9317.097708][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9317.097709][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9317.097710][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9317.097711][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9317.097712][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9317.097712][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9317.097713][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9317.097715][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9317.097718][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9317.097718][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9317.097719][    C3] PKRU: 55555554
[ 9317.097720][    C3] Call Trace:
[ 9317.097721][    C3]  <TASK>
[ 9317.097721][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9317.097724][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9317.097726][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9317.097728][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9317.097730][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9317.097732][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9317.097735][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9317.097737][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9317.097740][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9317.097741][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9317.097744][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9317.097746][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9317.097748][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9317.097750][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9317.097752][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9317.097754][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9317.097757][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9317.097758][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9317.097760][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9317.097762][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9317.097764][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9317.097767][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9317.097769][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9317.097771][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9317.097773][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9317.097774][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9317.097776][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9317.097778][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9317.097779][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9317.097781][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9317.097783][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9317.097784][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9317.097786][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9317.097788][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9317.097789][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9317.097791][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9317.097792][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9317.097794][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9317.097796][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9317.097797][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9317.097800][    C3]  vfs_write (fs/read_write.c:686)
[ 9317.097802][    C3]  ksys_write (fs/read_write.c:739)
[ 9317.097803][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9317.097805][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9317.097807][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9317.097809][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9317.097811][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9317.097812][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9317.097814][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9317.097815][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9317.097816][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9317.097816][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9317.097817][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9317.097818][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9344.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9344.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9344.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9344.385101][    C3] Tainted: [L]=SOFTLOCKUP
[ 9344.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9344.385103][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9344.385106][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9344.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9344.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9344.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9344.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9344.385110][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9344.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9344.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9344.385116][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9344.385117][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9344.385117][    C3] PKRU: 55555554
[ 9344.385118][    C3] Call Trace:
[ 9344.385120][    C3]  <TASK>
[ 9344.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9344.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9344.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9344.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9344.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9344.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9344.385135][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9344.385138][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9344.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9344.385142][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9344.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9344.385147][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9344.385149][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9344.385151][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9344.385153][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9344.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9344.385157][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9344.385159][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9344.385161][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9344.385163][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9344.385165][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9344.385168][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9344.385171][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9344.385172][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9344.385174][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9344.385176][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9344.385177][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9344.385179][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9344.385181][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9344.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9344.385185][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9344.385186][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9344.385188][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9344.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9344.385191][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9344.385193][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9344.385195][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9344.385196][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9344.385198][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9344.385200][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9344.385202][    C3]  vfs_write (fs/read_write.c:686)
[ 9344.385204][    C3]  ksys_write (fs/read_write.c:739)
[ 9344.385206][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9344.385208][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9344.385210][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9344.385212][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9344.385214][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9344.385216][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9344.385217][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9344.385218][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9344.385219][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9344.385220][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9344.385221][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9344.385221][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9364.804559][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9364.804768][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9364.804932][    C3] NMI backtrace for cpu 3
| [ 9364.804939][    C3] Tainted: [L]=SOFTLOCKUP
[ 9364.804939][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9364.804941][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9364.804944][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9364.804945][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9364.804947][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9364.804948][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9364.804948][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9364.804949][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9364.804950][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9364.804952][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9364.804954][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9364.804955][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9364.804956][    C3] PKRU: 55555554
[ 9364.804957][    C3] Call Trace:
[ 9364.804959][    C3]  <TASK>
[ 9364.804961][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9364.804963][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9364.804965][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9364.804967][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9364.804970][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9364.804971][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9364.804974][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9364.804976][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9364.804979][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9364.804980][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9364.804987][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9364.804989][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9364.804991][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9364.804993][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9364.804995][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9364.804997][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9364.805000][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9364.805001][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9364.805003][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9364.805005][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9364.805007][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9364.805010][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9364.805012][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9364.805014][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9364.805016][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9364.805017][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9364.805018][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9364.805020][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9364.805022][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9364.805023][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9364.805026][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9364.805027][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9364.805029][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9364.805031][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9364.805032][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9364.805034][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9364.805035][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9364.805037][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9364.805039][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9364.805040][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9364.805043][    C3]  vfs_write (fs/read_write.c:686)
[ 9364.805045][    C3]  ksys_write (fs/read_write.c:739)
[ 9364.805047][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9364.805048][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9364.805051][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9364.805053][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9364.805055][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9364.805057][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9364.805058][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9364.805059][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9364.805060][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9364.805061][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9364.805062][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9364.805062][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9392.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9392.385103][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9392.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9392.385112][    C3] Tainted: [L]=SOFTLOCKUP
[ 9392.385113][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9392.385115][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9392.385117][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9392.385118][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9392.385120][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9392.385121][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9392.385122][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9392.385123][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9392.385123][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9392.385126][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9392.385129][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9392.385130][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9392.385131][    C3] PKRU: 55555554
[ 9392.385132][    C3] Call Trace:
[ 9392.385135][    C3]  <TASK>
[ 9392.385138][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9392.385140][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9392.385142][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9392.385145][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9392.385147][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9392.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9392.385152][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9392.385154][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9392.385157][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9392.385159][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9392.385162][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9392.385164][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9392.385166][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9392.385168][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9392.385170][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9392.385172][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9392.385175][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9392.385177][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9392.385179][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9392.385181][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9392.385183][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9392.385186][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9392.385188][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9392.385190][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9392.385192][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9392.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9392.385195][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9392.385197][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9392.385198][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9392.385200][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9392.385202][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9392.385204][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9392.385205][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9392.385207][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9392.385208][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9392.385210][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9392.385212][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9392.385214][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9392.385215][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9392.385217][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9392.385219][    C3]  vfs_write (fs/read_write.c:686)
[ 9392.385221][    C3]  ksys_write (fs/read_write.c:739)
[ 9392.385223][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9392.385225][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9392.385227][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9392.385230][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9392.385236][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9392.385238][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9392.385239][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9392.385241][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9392.385242][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9392.385242][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9392.385243][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9392.385244][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9395.101072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9395.101271][    C3] rcu: 3-....: (8447033 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3204474
| [ 9395.101494][    C3] rcu: (t=8450409 jiffies g=527745 q=162135 ncpus=4)
| [ 9395.101697][    C3] Tainted: [L]=SOFTLOCKUP
[ 9395.101698][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9395.101699][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9395.101702][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9395.101703][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9395.101705][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9395.101706][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9395.101707][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9395.101708][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9395.101708][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9395.101710][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9395.101712][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9395.101713][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9395.101714][    C3] PKRU: 55555554
[ 9395.101715][    C3] Call Trace:
[ 9395.101716][    C3]  <TASK>
[ 9395.101716][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9395.101719][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9395.101721][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9395.101723][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9395.101725][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9395.101727][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9395.101729][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9395.101732][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9395.101734][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9395.101736][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9395.101738][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9395.101741][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9395.101743][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9395.101745][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9395.101747][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9395.101749][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9395.101751][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9395.101753][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9395.101755][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9395.101758][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9395.101759][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9395.101762][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9395.101764][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9395.101766][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9395.101768][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9395.101770][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9395.101771][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9395.101774][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9395.101775][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9395.101777][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9395.101779][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9395.101781][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9395.101783][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9395.101785][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9395.101786][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9395.101788][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9395.101789][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9395.101791][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9395.101793][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9395.101795][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9395.101798][    C3]  vfs_write (fs/read_write.c:686)
[ 9395.101800][    C3]  ksys_write (fs/read_write.c:739)
[ 9395.101801][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9395.101803][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9395.101806][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9395.101808][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9395.101810][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9395.101811][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9395.101812][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9395.101814][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9395.101815][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9395.101816][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9395.101816][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9395.101817][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9420.385094][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9420.385096][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9420.385098][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9420.385104][    C3] Tainted: [L]=SOFTLOCKUP
[ 9420.385105][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9420.385106][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:114 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 9420.385109][    C3] Code: 4c 37 ff 48 89 f9 4c 8d 74 37 ff 48 b8 00 00 00 00 00 fc ff df 49 c1 e9 03 48 c1 e9 03 4e 8d 54 08 01 49 8d 1c 01 4c 8d 0c 01 <4c> 89 d1 4c 29 c9 4c 89 c8 48 83 f9 10 0f 8e f4 00 00 00 45 89 cb
All code
========
   0:	4c 37                	rex.WR (bad)
   2:	ff 48 89             	decl   -0x77(%rax)
   5:	f9                   	stc
   6:	4c 8d 74 37 ff       	lea    -0x1(%rdi,%rsi,1),%r14
   b:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  12:	fc ff df 
  15:	49 c1 e9 03          	shr    $0x3,%r9
  19:	48 c1 e9 03          	shr    $0x3,%rcx
  1d:	4e 8d 54 08 01       	lea    0x1(%rax,%r9,1),%r10
  22:	49 8d 1c 01          	lea    (%r9,%rax,1),%rbx
  26:	4c 8d 0c 01          	lea    (%rcx,%rax,1),%r9
  2a:*	4c 89 d1             	mov    %r10,%rcx		<-- trapping instruction
  2d:	4c 29 c9             	sub    %r9,%rcx
  30:	4c 89 c8             	mov    %r9,%rax
  33:	48 83 f9 10          	cmp    $0x10,%rcx
  37:	0f 8e f4 00 00 00    	jle    0x131
  3d:	45 89 cb             	mov    %r9d,%r11d

Code starting with the faulting instruction
===========================================
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 29 c9             	sub    %r9,%rcx
   6:	4c 89 c8             	mov    %r9,%rax
   9:	48 83 f9 10          	cmp    $0x10,%rcx
   d:	0f 8e f4 00 00 00    	jle    0x107
  13:	45 89 cb             	mov    %r9d,%r11d
[ 9420.385110][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000216
[ 9420.385112][    C3] RAX: dffffc0000000000 RBX: ffe21c0002217169 RCX: 1fe2200002217169
[ 9420.385113][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9420.385114][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9420.385115][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9420.385115][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 9420.385118][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9420.385121][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9420.385121][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9420.385122][    C3] PKRU: 55555554
[ 9420.385123][    C3] Call Trace:
[ 9420.385125][    C3]  <TASK>
[ 9420.385127][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 9420.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9420.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9420.385134][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9420.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9420.385139][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9420.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9420.385143][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9420.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9420.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9420.385150][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9420.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9420.385155][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9420.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9420.385159][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9420.385161][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9420.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9420.385165][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9420.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9420.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9420.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9420.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9420.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9420.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9420.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9420.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9420.385183][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9420.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9420.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9420.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9420.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9420.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9420.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9420.385196][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9420.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9420.385199][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9420.385201][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9420.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9420.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9420.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9420.385208][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9420.385211][    C3]  vfs_write (fs/read_write.c:686)
[ 9420.385213][    C3]  ksys_write (fs/read_write.c:739)
[ 9420.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9420.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9420.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9420.385221][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9420.385223][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9420.385225][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9420.385226][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9420.385227][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9420.385228][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9420.385229][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9420.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9420.385230][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9448.385114][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9448.385116][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9448.385119][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9448.385128][    C3] Tainted: [L]=SOFTLOCKUP
[ 9448.385129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9448.385131][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9448.385134][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9448.385136][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9448.385138][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9448.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9448.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9448.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9448.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9448.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9448.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9448.385151][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9448.385152][    C3] PKRU: 55555554
[ 9448.385153][    C3] Call Trace:
[ 9448.385154][    C3]  <TASK>
[ 9448.385156][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9448.385162][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9448.385164][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9448.385168][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9448.385173][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9448.385175][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9448.385177][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9448.385180][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9448.385183][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9448.385185][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9448.385187][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9448.385190][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9448.385193][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9448.385194][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9448.385197][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9448.385199][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9448.385204][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9448.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9448.385208][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9448.385210][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9448.385212][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9448.385216][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9448.385219][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9448.385221][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9448.385224][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9448.385227][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9448.385229][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9448.385231][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9448.385234][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9448.385235][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9448.385238][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9448.385239][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9448.385242][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9448.385244][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9448.385246][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9448.385248][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9448.385250][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9448.385251][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9448.385253][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9448.385255][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9448.385257][    C3]  vfs_write (fs/read_write.c:686)
[ 9448.385260][    C3]  ksys_write (fs/read_write.c:739)
[ 9448.385262][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9448.385264][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9448.385266][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9448.385270][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9448.385273][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9448.385278][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9448.385279][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9448.385281][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9448.385282][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9448.385283][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9448.385284][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9448.385285][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9463.109541][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9463.109712][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9463.109870][    C3] NMI backtrace for cpu 3
| [ 9463.109883][    C3] Tainted: [L]=SOFTLOCKUP
[ 9463.109884][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9463.109885][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9463.109893][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9463.109894][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9463.109897][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9463.109898][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9463.109899][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9463.109899][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9463.109900][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9463.109902][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9463.109905][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9463.109906][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9463.109907][    C3] PKRU: 55555554
[ 9463.109908][    C3] Call Trace:
[ 9463.109909][    C3]  <TASK>
[ 9463.109910][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9463.109915][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9463.109917][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9463.109921][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9463.109924][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9463.109926][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9463.109929][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9463.109932][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9463.109935][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9463.109937][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9463.109939][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9463.109942][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9463.109944][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9463.109946][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9463.109948][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9463.109951][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9463.109955][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9463.109957][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9463.109959][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9463.109962][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9463.109963][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9463.109967][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9463.109970][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9463.109972][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9463.109975][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9463.109978][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9463.109979][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9463.109982][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9463.109984][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9463.109986][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9463.109988][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9463.109990][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9463.109992][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9463.109994][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9463.109996][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9463.109998][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9463.110000][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9463.110002][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9463.110003][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9463.110005][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9463.110008][    C3]  vfs_write (fs/read_write.c:686)
[ 9463.110010][    C3]  ksys_write (fs/read_write.c:739)
[ 9463.110012][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9463.110014][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9463.110016][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9463.110020][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9463.110022][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9463.110025][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9463.110027][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9463.110028][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9463.110029][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9463.110030][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9463.110031][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9463.110032][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9473.105070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9473.105254][    C3] rcu: 3-....: (8525004 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3237474
| [ 9473.105538][    C3] rcu: (t=8528413 jiffies g=527745 q=163635 ncpus=4)
| [ 9473.105671][    C3] Tainted: [L]=SOFTLOCKUP
[ 9473.105672][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9473.105673][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9473.105676][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9473.105677][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9473.105679][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9473.105679][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9473.105680][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9473.105681][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9473.105682][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9473.105684][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9473.105686][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9473.105688][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9473.105689][    C3] PKRU: 55555554
[ 9473.105689][    C3] Call Trace:
[ 9473.105690][    C3]  <TASK>
[ 9473.105691][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9473.105693][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9473.105696][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9473.105698][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9473.105701][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9473.105703][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9473.105705][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9473.105708][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9473.105711][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9473.105712][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9473.105715][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9473.105718][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9473.105720][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9473.105722][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9473.105724][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9473.105726][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9473.105728][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9473.105730][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9473.105733][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9473.105735][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9473.105736][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9473.105740][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9473.105742][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9473.105744][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9473.105746][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9473.105748][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9473.105749][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9473.105751][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9473.105753][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9473.105754][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9473.105757][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9473.105759][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9473.105760][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9473.105762][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9473.105764][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9473.105765][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9473.105767][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9473.105769][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9473.105770][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9473.105772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9473.105774][    C3]  vfs_write (fs/read_write.c:686)
[ 9473.105776][    C3]  ksys_write (fs/read_write.c:739)
[ 9473.105778][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9473.105779][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9473.105782][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9473.105784][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9473.105786][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9473.105787][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9473.105788][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9473.105790][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9473.105791][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9473.105792][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9473.105792][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9473.105793][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9500.385112][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9500.385114][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9500.385117][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9500.385127][    C3] Tainted: [L]=SOFTLOCKUP
[ 9500.385129][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9500.385130][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 9500.385134][    C3] Code: 89 fc 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 5f 2f 52 fe 41 0f b6 45 00 41 38 c4 7c 08 84 c0 <0f> 85 30 06 00 00 8b 03 89 44 24 48 85 c0 0f 85 8d 03 00 00 48 89
All code
========
   0:	89 fc                	mov    %edi,%esp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	41 83 e4 07          	and    $0x7,%r12d
   a:	49 01 c5             	add    %rax,%r13
   d:	41 83 c4 03          	add    $0x3,%r12d
  11:	be 04 00 00 00       	mov    $0x4,%esi
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 5f 2f 52 fe       	call   0xfffffffffe522f7d
  1e:	41 0f b6 45 00       	movzbl 0x0(%r13),%eax
  23:	41 38 c4             	cmp    %al,%r12b
  26:	7c 08                	jl     0x30
  28:	84 c0                	test   %al,%al
  2a:*	0f 85 30 06 00 00    	jne    0x660		<-- trapping instruction
  30:	8b 03                	mov    (%rbx),%eax
  32:	89 44 24 48          	mov    %eax,0x48(%rsp)
  36:	85 c0                	test   %eax,%eax
  38:	0f 85 8d 03 00 00    	jne    0x3cb
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	0f 85 30 06 00 00    	jne    0x636
   6:	8b 03                	mov    (%rbx),%eax
   8:	89 44 24 48          	mov    %eax,0x48(%rsp)
   c:	85 c0                	test   %eax,%eax
   e:	0f 85 8d 03 00 00    	jne    0x3a1
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[ 9500.385136][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000246
[ 9500.385138][    C3] RAX: 0000000000000000 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9500.385140][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9500.385141][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9500.385142][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9500.385143][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9500.385145][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9500.385149][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9500.385150][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9500.385151][    C3] PKRU: 55555554
[ 9500.385152][    C3] Call Trace:
[ 9500.385156][    C3]  <TASK>
[ 9500.385159][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9500.385164][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9500.385166][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9500.385170][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9500.385174][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9500.385176][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9500.385179][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9500.385181][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9500.385185][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9500.385186][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9500.385188][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9500.385191][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9500.385194][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9500.385195][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9500.385198][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9500.385200][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9500.385204][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9500.385206][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9500.385208][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9500.385210][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9500.385216][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9500.385219][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9500.385223][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9500.385224][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9500.385228][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9500.385231][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9500.385232][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9500.385234][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9500.385238][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9500.385239][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9500.385242][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9500.385243][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9500.385246][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9500.385248][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9500.385249][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9500.385252][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9500.385253][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9500.385255][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9500.385256][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9500.385258][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9500.385261][    C3]  vfs_write (fs/read_write.c:686)
[ 9500.385263][    C3]  ksys_write (fs/read_write.c:739)
[ 9500.385265][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9500.385267][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9500.385269][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9500.385273][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9500.385277][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9500.385279][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9500.385281][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9500.385282][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9500.385283][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9500.385284][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9500.385285][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9500.385286][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9528.385102][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9528.385104][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9528.385106][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9528.385115][    C3] Tainted: [L]=SOFTLOCKUP
[ 9528.385116][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9528.385117][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9528.385120][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9528.385121][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9528.385123][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9528.385124][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9528.385125][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9528.385126][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9528.385127][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9528.385129][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9528.385132][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9528.385133][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9528.385133][    C3] PKRU: 55555554
[ 9528.385134][    C3] Call Trace:
[ 9528.385136][    C3]  <TASK>
[ 9528.385138][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9528.385142][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9528.385145][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9528.385148][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9528.385152][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9528.385154][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9528.385156][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9528.385159][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9528.385162][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9528.385164][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9528.385166][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9528.385169][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9528.385171][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9528.385173][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9528.385175][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9528.385177][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9528.385181][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9528.385183][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9528.385185][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9528.385188][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9528.385190][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9528.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9528.385196][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9528.385198][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9528.385201][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9528.385204][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9528.385205][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9528.385207][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9528.385210][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9528.385212][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9528.385214][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9528.385216][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9528.385218][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9528.385220][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9528.385221][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9528.385224][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9528.385226][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9528.385227][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9528.385229][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9528.385230][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9528.385233][    C3]  vfs_write (fs/read_write.c:686)
[ 9528.385235][    C3]  ksys_write (fs/read_write.c:739)
[ 9528.385237][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9528.385239][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9528.385241][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9528.385245][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9528.385248][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9528.385250][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9528.385251][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9528.385253][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9528.385254][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9528.385254][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9528.385255][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9528.385256][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9551.109073][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9551.109415][    C3] rcu: 3-....: (8602982 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3269119
| [ 9551.109664][    C3] rcu: (t=8606417 jiffies g=527745 q=164775 ncpus=4)
| [ 9551.109811][    C3] Tainted: [L]=SOFTLOCKUP
[ 9551.109813][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9551.109815][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9551.109824][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9551.109826][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9551.109830][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9551.109831][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9551.109832][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9551.109834][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9551.109834][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9551.109837][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9551.109840][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9551.109841][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9551.109843][    C3] PKRU: 55555554
[ 9551.109844][    C3] Call Trace:
[ 9551.109844][    C3]  <TASK>
[ 9551.109846][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9551.109850][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9551.109853][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9551.109857][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9551.109860][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9551.109862][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9551.109865][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9551.109868][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9551.109871][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9551.109873][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9551.109875][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9551.109878][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9551.109880][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9551.109882][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9551.109884][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9551.109886][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9551.109890][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9551.109892][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9551.109894][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9551.109897][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9551.109898][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9551.109901][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9551.109904][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9551.109906][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9551.109910][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9551.109913][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9551.109914][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9551.109916][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9551.109919][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9551.109921][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9551.109923][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9551.109925][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9551.109927][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9551.109929][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9551.109931][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9551.109932][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9551.109934][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9551.109936][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9551.109937][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9551.109939][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9551.109941][    C3]  vfs_write (fs/read_write.c:686)
[ 9551.109944][    C3]  ksys_write (fs/read_write.c:739)
[ 9551.109946][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9551.109947][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9551.109950][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9551.109953][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9551.109956][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9551.109959][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9551.109961][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9551.109963][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9551.109964][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9551.109965][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9551.109965][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9551.109966][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9561.413527][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9561.413716][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9561.413952][    C3] NMI backtrace for cpu 3
| [ 9561.413960][    C3] Tainted: [L]=SOFTLOCKUP
[ 9561.413961][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9561.413962][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9561.413968][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9561.413970][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9561.413972][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9561.413973][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9561.413974][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9561.413975][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9561.413976][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9561.413978][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9561.413981][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9561.413982][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9561.413983][    C3] PKRU: 55555554
[ 9561.413983][    C3] Call Trace:
[ 9561.413984][    C3]  <TASK>
[ 9561.413985][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9561.413990][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9561.413992][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9561.413996][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9561.413999][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9561.414001][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9561.414004][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9561.414007][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9561.414010][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9561.414012][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9561.414014][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9561.414017][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9561.414019][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9561.414021][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9561.414024][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9561.414026][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9561.414030][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9561.414032][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9561.414034][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9561.414036][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9561.414038][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9561.414041][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9561.414045][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9561.414047][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9561.414050][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9561.414053][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9561.414055][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9561.414057][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9561.414059][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9561.414061][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9561.414063][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9561.414065][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9561.414067][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9561.414071][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9561.414073][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9561.414075][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9561.414077][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9561.414079][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9561.414081][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9561.414083][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9561.414085][    C3]  vfs_write (fs/read_write.c:686)
[ 9561.414088][    C3]  ksys_write (fs/read_write.c:739)
[ 9561.414090][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9561.414092][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9561.414094][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9561.414098][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9561.414101][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9561.414103][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9561.414104][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9561.414106][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9561.414107][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9561.414108][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9561.414109][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9561.414109][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9588.385100][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9588.385102][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9588.385105][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9588.385110][    C3] Tainted: [L]=SOFTLOCKUP
[ 9588.385111][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9588.385111][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9588.385114][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9588.385115][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9588.385117][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9588.385118][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9588.385119][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9588.385120][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9588.385120][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9588.385122][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9588.385125][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9588.385126][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9588.385127][    C3] PKRU: 55555554
[ 9588.385128][    C3] Call Trace:
[ 9588.385129][    C3]  <TASK>
[ 9588.385130][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9588.385132][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9588.385135][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9588.385137][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9588.385140][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9588.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9588.385144][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9588.385146][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9588.385149][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9588.385151][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9588.385153][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9588.385156][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9588.385158][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9588.385160][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9588.385162][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9588.385164][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9588.385167][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9588.385169][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9588.385171][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9588.385173][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9588.385175][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9588.385177][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9588.385180][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9588.385182][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9588.385184][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9588.385186][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9588.385187][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9588.385190][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9588.385192][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9588.385193][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9588.385196][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9588.385198][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9588.385199][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9588.385201][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9588.385203][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9588.385205][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9588.385206][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9588.385208][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9588.385210][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9588.385212][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9588.385214][    C3]  vfs_write (fs/read_write.c:686)
[ 9588.385217][    C3]  ksys_write (fs/read_write.c:739)
[ 9588.385219][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9588.385221][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9588.385223][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9588.385225][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9588.385228][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9588.385229][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9588.385231][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9588.385232][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9588.385233][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9588.385234][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9588.385235][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9588.385236][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9616.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9616.385095][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9616.385097][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9616.385103][    C3] Tainted: [L]=SOFTLOCKUP
[ 9616.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9616.385105][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9616.385107][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9616.385108][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9616.385110][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9616.385111][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9616.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9616.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9616.385113][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9616.385115][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9616.385118][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9616.385119][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9616.385120][    C3] PKRU: 55555554
[ 9616.385120][    C3] Call Trace:
[ 9616.385121][    C3]  <TASK>
[ 9616.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9616.385124][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9616.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9616.385129][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9616.385131][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9616.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9616.385135][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9616.385137][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9616.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9616.385142][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9616.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9616.385147][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9616.385149][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9616.385151][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9616.385153][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9616.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9616.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9616.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9616.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9616.385164][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9616.385165][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9616.385168][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9616.385171][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9616.385173][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9616.385175][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9616.385176][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9616.385178][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9616.385180][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9616.385181][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9616.385183][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9616.385185][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9616.385187][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9616.385189][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9616.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9616.385192][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9616.385194][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9616.385196][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9616.385198][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9616.385200][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9616.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9616.385204][    C3]  vfs_write (fs/read_write.c:686)
[ 9616.385206][    C3]  ksys_write (fs/read_write.c:739)
[ 9616.385208][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9616.385210][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9616.385212][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9616.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9616.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9616.385218][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9616.385219][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9616.385220][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9616.385221][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9616.385222][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9616.385223][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9616.385224][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9629.113070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9629.113271][    C3] rcu: 3-....: (8680954 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3302046
| [ 9629.113546][    C3] rcu: (t=8684421 jiffies g=527745 q=166272 ncpus=4)
| [ 9629.113751][    C3] Tainted: [L]=SOFTLOCKUP
[ 9629.113752][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9629.113753][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9629.113755][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9629.113757][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9629.113758][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9629.113759][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9629.113760][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9629.113761][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9629.113761][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9629.113763][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9629.113765][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9629.113766][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9629.113767][    C3] PKRU: 55555554
[ 9629.113768][    C3] Call Trace:
[ 9629.113768][    C3]  <TASK>
[ 9629.113769][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9629.113771][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9629.113774][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9629.113776][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9629.113778][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9629.113780][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9629.113783][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9629.113785][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9629.113788][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9629.113789][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9629.113792][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9629.113794][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9629.113796][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9629.113798][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9629.113800][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9629.113802][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9629.113805][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9629.113807][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9629.113809][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9629.113811][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9629.113813][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9629.113816][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9629.113818][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9629.113820][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9629.113822][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9629.113823][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9629.113824][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9629.113827][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9629.113828][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9629.113830][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9629.113832][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9629.113834][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9629.113835][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9629.113837][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9629.113839][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9629.113841][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9629.113842][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9629.113844][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9629.113846][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9629.113847][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9629.113850][    C3]  vfs_write (fs/read_write.c:686)
[ 9629.113852][    C3]  ksys_write (fs/read_write.c:739)
[ 9629.113854][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9629.113856][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9629.113858][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9629.113860][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9629.113862][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9629.113863][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9629.113864][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9629.113865][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9629.113866][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9629.113867][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9629.113868][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9629.113868][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9656.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9656.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9656.385093][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9656.385097][    C3] Tainted: [L]=SOFTLOCKUP
[ 9656.385098][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9656.385099][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9656.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9656.385102][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9656.385103][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9656.385104][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9656.385105][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9656.385106][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9656.385106][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9656.385108][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9656.385110][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9656.385111][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9656.385112][    C3] PKRU: 55555554
[ 9656.385113][    C3] Call Trace:
[ 9656.385113][    C3]  <TASK>
[ 9656.385114][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9656.385116][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9656.385119][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9656.385121][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9656.385123][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9656.385125][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9656.385127][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9656.385129][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9656.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9656.385134][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9656.385136][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9656.385139][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9656.385141][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9656.385143][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9656.385145][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9656.385147][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9656.385149][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9656.385151][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9656.385153][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9656.385155][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9656.385157][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9656.385160][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9656.385162][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9656.385163][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9656.385165][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9656.385167][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9656.385168][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9656.385170][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9656.385172][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9656.385173][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9656.385175][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9656.385177][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9656.385179][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9656.385180][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9656.385182][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9656.385184][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9656.385185][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9656.385187][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9656.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9656.385190][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9656.385193][    C3]  vfs_write (fs/read_write.c:686)
[ 9656.385195][    C3]  ksys_write (fs/read_write.c:739)
[ 9656.385196][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9656.385198][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9656.385200][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9656.385203][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9656.385204][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9656.385205][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9656.385207][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9656.385208][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9656.385209][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9656.385210][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9656.385210][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9656.385211][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9659.716431][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9659.716606][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9659.716826][    C3] NMI backtrace for cpu 3
| [ 9659.716830][    C3] Tainted: [L]=SOFTLOCKUP
[ 9659.716830][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9659.716831][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9659.716833][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9659.716834][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9659.716836][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9659.716837][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9659.716837][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9659.716838][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9659.716839][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9659.716840][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9659.716842][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9659.716843][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9659.716844][    C3] PKRU: 55555554
[ 9659.716844][    C3] Call Trace:
[ 9659.716845][    C3]  <TASK>
[ 9659.716846][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9659.716848][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9659.716850][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9659.716852][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9659.716854][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9659.716856][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9659.716859][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9659.716861][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9659.716863][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9659.716865][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9659.716867][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9659.716870][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9659.716872][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9659.716874][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9659.716876][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9659.716878][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9659.716880][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9659.716882][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9659.716884][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9659.716886][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9659.716888][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9659.716891][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9659.716893][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9659.716894][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9659.716896][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9659.716898][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9659.716899][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9659.716901][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9659.716903][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9659.716904][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9659.716907][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9659.716908][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9659.716910][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9659.716912][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9659.716913][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9659.716915][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9659.716916][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9659.716918][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9659.716920][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9659.716921][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9659.716924][    C3]  vfs_write (fs/read_write.c:686)
[ 9659.716926][    C3]  ksys_write (fs/read_write.c:739)
[ 9659.716927][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9659.716929][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9659.716931][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9659.716934][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9659.716935][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9659.716936][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9659.716938][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9659.716939][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9659.716940][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9659.716941][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9659.716942][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9659.716942][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9684.385087][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9684.385089][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9684.385091][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9684.385095][    C3] Tainted: [L]=SOFTLOCKUP
[ 9684.385095][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9684.385096][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9684.385098][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9684.385099][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9684.385100][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9684.385101][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9684.385101][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9684.385102][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9684.385103][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9684.385104][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9684.385107][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9684.385108][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9684.385108][    C3] PKRU: 55555554
[ 9684.385109][    C3] Call Trace:
[ 9684.385110][    C3]  <TASK>
[ 9684.385111][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9684.385113][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9684.385115][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9684.385117][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9684.385119][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9684.385121][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9684.385123][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9684.385126][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9684.385128][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9684.385130][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9684.385132][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9684.385135][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9684.385137][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9684.385139][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9684.385141][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9684.385143][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9684.385145][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9684.385147][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9684.385149][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9684.385151][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9684.385153][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9684.385156][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9684.385158][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9684.385160][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9684.385162][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9684.385163][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9684.385165][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9684.385167][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9684.385168][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9684.385170][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9684.385172][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9684.385174][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9684.385175][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9684.385177][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9684.385178][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9684.385180][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9684.385182][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9684.385183][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9684.385185][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9684.385186][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9684.385189][    C3]  vfs_write (fs/read_write.c:686)
[ 9684.385191][    C3]  ksys_write (fs/read_write.c:739)
[ 9684.385193][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9684.385194][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9684.385197][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9684.385199][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9684.385201][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9684.385202][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9684.385203][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9684.385204][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9684.385205][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9684.385206][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9684.385207][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9684.385208][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9707.117071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9707.117279][    C3] rcu: 3-....: (8758926 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3334495
| [ 9707.117580][    C3] rcu: (t=8762425 jiffies g=527745 q=167769 ncpus=4)
| [ 9707.117718][    C3] Tainted: [L]=SOFTLOCKUP
[ 9707.117719][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9707.117720][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9707.117723][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9707.117725][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9707.117727][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9707.117728][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9707.117729][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9707.117730][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9707.117731][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9707.117732][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9707.117735][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9707.117736][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9707.117737][    C3] PKRU: 55555554
[ 9707.117738][    C3] Call Trace:
[ 9707.117739][    C3]  <TASK>
[ 9707.117740][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9707.117742][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9707.117744][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9707.117747][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9707.117749][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9707.117751][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9707.117753][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9707.117755][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9707.117758][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9707.117760][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9707.117762][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9707.117765][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9707.117767][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9707.117769][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9707.117771][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9707.117773][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9707.117775][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9707.117777][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9707.117779][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9707.117781][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9707.117783][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9707.117786][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9707.117788][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9707.117790][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9707.117791][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9707.117793][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9707.117794][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9707.117796][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9707.117798][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9707.117799][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9707.117802][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9707.117803][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9707.117805][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9707.117806][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9707.117808][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9707.117809][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9707.117811][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9707.117813][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9707.117814][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9707.117816][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9707.117818][    C3]  vfs_write (fs/read_write.c:686)
[ 9707.117820][    C3]  ksys_write (fs/read_write.c:739)
[ 9707.117822][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9707.117824][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9707.117826][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9707.117828][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9707.117830][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9707.117832][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9707.117834][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9707.117835][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9707.117836][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9707.117837][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9707.117838][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9707.117838][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9732.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9732.385090][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9732.385092][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9732.385097][    C3] Tainted: [L]=SOFTLOCKUP
[ 9732.385098][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9732.385099][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9732.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9732.385102][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9732.385103][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9732.385104][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9732.385105][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9732.385106][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9732.385107][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9732.385108][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9732.385111][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9732.385112][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9732.385113][    C3] PKRU: 55555554
[ 9732.385113][    C3] Call Trace:
[ 9732.385114][    C3]  <TASK>
[ 9732.385115][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9732.385117][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9732.385119][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9732.385121][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9732.385123][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9732.385125][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9732.385127][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9732.385129][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9732.385132][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9732.385134][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9732.385136][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9732.385139][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9732.385141][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9732.385142][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9732.385145][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9732.385146][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9732.385149][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9732.385151][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9732.385153][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9732.385155][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9732.385157][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9732.385160][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9732.385162][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9732.385163][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9732.385166][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9732.385167][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9732.385168][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9732.385170][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9732.385172][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9732.385173][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9732.385176][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9732.385177][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9732.385179][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9732.385181][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9732.385182][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9732.385184][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9732.385186][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9732.385188][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9732.385189][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9732.385191][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9732.385193][    C3]  vfs_write (fs/read_write.c:686)
[ 9732.385195][    C3]  ksys_write (fs/read_write.c:739)
[ 9732.385197][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9732.385199][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9732.385201][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9732.385203][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9732.385205][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9732.385206][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9732.385208][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9732.385209][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9732.385210][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9732.385211][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9732.385211][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9732.385212][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9758.020425][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9758.020639][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9758.020827][    C3] NMI backtrace for cpu 3
| [ 9758.020831][    C3] Tainted: [L]=SOFTLOCKUP
[ 9758.020832][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9758.020833][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9758.020835][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9758.020836][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9758.020837][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9758.020838][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9758.020839][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9758.020840][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9758.020841][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9758.020842][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9758.020845][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9758.020845][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9758.020846][    C3] PKRU: 55555554
[ 9758.020847][    C3] Call Trace:
[ 9758.020847][    C3]  <TASK>
[ 9758.020848][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9758.020850][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9758.020852][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9758.020854][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9758.020856][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9758.020858][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9758.020861][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9758.020863][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9758.020865][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9758.020867][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9758.020869][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9758.020872][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9758.020874][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9758.020876][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9758.020878][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9758.020880][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9758.020882][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9758.020884][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9758.020886][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9758.020888][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9758.020890][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9758.020893][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9758.020895][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9758.020896][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9758.020898][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9758.020900][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9758.020901][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9758.020903][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9758.020905][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9758.020906][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9758.020908][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9758.020910][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9758.020911][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9758.020913][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9758.020915][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9758.020916][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9758.020918][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9758.020920][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9758.020921][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9758.020923][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9758.020925][    C3]  vfs_write (fs/read_write.c:686)
[ 9758.020927][    C3]  ksys_write (fs/read_write.c:739)
[ 9758.020929][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9758.020931][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9758.020933][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9758.020935][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9758.020937][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9758.020938][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9758.020939][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9758.020940][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9758.020941][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9758.020942][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9758.020942][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9758.020943][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9784.385086][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9784.385087][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9784.385089][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9784.385093][    C3] Tainted: [L]=SOFTLOCKUP
[ 9784.385094][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9784.385094][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9784.385096][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9784.385097][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9784.385098][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9784.385099][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9784.385100][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9784.385101][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9784.385101][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9784.385103][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9784.385105][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9784.385106][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9784.385107][    C3] PKRU: 55555554
[ 9784.385108][    C3] Call Trace:
[ 9784.385108][    C3]  <TASK>
[ 9784.385109][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9784.385111][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9784.385113][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9784.385115][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9784.385117][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9784.385119][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9784.385121][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9784.385123][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9784.385126][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9784.385128][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9784.385130][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9784.385133][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9784.385135][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9784.385137][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9784.385139][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9784.385140][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9784.385143][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9784.385145][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9784.385147][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9784.385149][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9784.385150][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9784.385154][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9784.385156][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9784.385157][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9784.385159][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9784.385161][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9784.385162][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9784.385164][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9784.385166][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9784.385167][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9784.385169][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9784.385171][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9784.385173][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9784.385174][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9784.385176][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9784.385177][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9784.385179][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9784.385181][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9784.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9784.385184][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9784.385186][    C3]  vfs_write (fs/read_write.c:686)
[ 9784.385188][    C3]  ksys_write (fs/read_write.c:739)
[ 9784.385190][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9784.385192][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9784.385194][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9784.385196][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9784.385198][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9784.385199][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9784.385200][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9784.385201][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9784.385202][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9784.385202][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9784.385203][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9784.385204][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9785.121070][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9785.121283][    C3] rcu: 3-....: (8836897 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3368654
| [ 9785.121502][    C3] rcu: (t=8840429 jiffies g=527745 q=169269 ncpus=4)
| [ 9785.121682][    C3] Tainted: [L]=SOFTLOCKUP
[ 9785.121682][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9785.121683][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9785.121685][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9785.121686][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9785.121687][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9785.121688][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9785.121689][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9785.121689][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9785.121690][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9785.121692][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9785.121694][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9785.121694][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9785.121695][    C3] PKRU: 55555554
[ 9785.121696][    C3] Call Trace:
[ 9785.121697][    C3]  <TASK>
[ 9785.121697][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9785.121699][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9785.121701][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9785.121704][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9785.121706][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9785.121708][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9785.121710][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9785.121712][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9785.121715][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9785.121717][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9785.121719][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9785.121722][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9785.121724][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9785.121725][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9785.121727][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9785.121729][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9785.121732][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9785.121733][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9785.121736][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9785.121738][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9785.121739][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9785.121742][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9785.121744][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9785.121746][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9785.121748][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9785.121749][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9785.121750][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9785.121752][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9785.121754][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9785.121755][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9785.121758][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9785.121759][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9785.121761][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9785.121763][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9785.121764][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9785.121766][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9785.121767][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9785.121769][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9785.121771][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9785.121772][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9785.121774][    C3]  vfs_write (fs/read_write.c:686)
[ 9785.121776][    C3]  ksys_write (fs/read_write.c:739)
[ 9785.121778][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9785.121780][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9785.121782][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9785.121784][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9785.121786][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9785.121787][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9785.121788][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9785.121789][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9785.121790][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9785.121790][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9785.121791][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9785.121792][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9812.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9812.385090][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9812.385092][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9812.385097][    C3] Tainted: [L]=SOFTLOCKUP
[ 9812.385097][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9812.385098][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9812.385100][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9812.385101][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9812.385102][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9812.385103][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9812.385104][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9812.385105][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9812.385106][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9812.385107][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9812.385110][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9812.385116][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9812.385117][    C3] PKRU: 55555554
[ 9812.385117][    C3] Call Trace:
[ 9812.385118][    C3]  <TASK>
[ 9812.385119][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9812.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9812.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9812.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9812.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9812.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9812.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9812.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9812.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9812.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9812.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9812.385143][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9812.385145][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9812.385147][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9812.385149][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9812.385151][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9812.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9812.385155][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9812.385157][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9812.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9812.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9812.385164][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9812.385166][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9812.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9812.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9812.385171][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9812.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9812.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9812.385176][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9812.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9812.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9812.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9812.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9812.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9812.385186][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9812.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9812.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9812.385191][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9812.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9812.385194][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9812.385197][    C3]  vfs_write (fs/read_write.c:686)
[ 9812.385199][    C3]  ksys_write (fs/read_write.c:739)
[ 9812.385201][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9812.385202][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9812.385204][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9812.385207][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9812.385208][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9812.385210][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9812.385211][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9812.385212][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9812.385213][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9812.385214][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9812.385214][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9812.385215][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9840.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9840.385091][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9840.385092][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9840.385097][    C3] Tainted: [L]=SOFTLOCKUP
[ 9840.385098][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9840.385099][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9840.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9840.385102][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9840.385103][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9840.385104][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9840.385105][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9840.385105][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9840.385106][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9840.385108][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9840.385111][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9840.385111][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9840.385112][    C3] PKRU: 55555554
[ 9840.385113][    C3] Call Trace:
[ 9840.385115][    C3]  <TASK>
[ 9840.385116][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9840.385118][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9840.385120][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9840.385122][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9840.385124][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9840.385126][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9840.385128][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9840.385131][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9840.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9840.385135][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9840.385137][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9840.385140][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9840.385142][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9840.385144][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9840.385146][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9840.385148][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9840.385150][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9840.385152][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9840.385154][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9840.385156][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9840.385158][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9840.385161][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9840.385163][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9840.385165][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9840.385167][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9840.385168][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9840.385170][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9840.385172][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9840.385173][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9840.385175][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9840.385177][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9840.385178][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9840.385180][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9840.385182][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9840.385183][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9840.385185][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9840.385187][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9840.385188][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9840.385190][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9840.385191][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9840.385194][    C3]  vfs_write (fs/read_write.c:686)
[ 9840.385196][    C3]  ksys_write (fs/read_write.c:739)
[ 9840.385198][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9840.385199][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9840.385201][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9840.385204][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9840.385206][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9840.385207][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9840.385208][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9840.385209][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9840.385210][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9840.385211][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9840.385211][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9840.385212][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9856.325569][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9856.325782][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9856.325943][    C3] NMI backtrace for cpu 3
| [ 9856.325949][    C3] Tainted: [L]=SOFTLOCKUP
[ 9856.325950][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9856.325951][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9856.325953][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9856.325955][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9856.325956][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9856.325957][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9856.325958][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9856.325959][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9856.325959][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9856.325961][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9856.325963][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9856.325964][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9856.325965][    C3] PKRU: 55555554
[ 9856.325965][    C3] Call Trace:
[ 9856.325967][    C3]  <TASK>
[ 9856.325968][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9856.325970][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9856.325972][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9856.325975][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9856.325977][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9856.325979][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9856.325981][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9856.325983][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9856.325986][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9856.325988][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9856.325990][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9856.325992][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9856.325994][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9856.325996][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9856.325998][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9856.326000][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9856.326002][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9856.326004][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9856.326007][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9856.326008][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9856.326010][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9856.326013][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9856.326015][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9856.326017][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9856.326019][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9856.326020][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9856.326022][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9856.326024][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9856.326025][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9856.326027][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9856.326029][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9856.326031][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9856.326032][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9856.326034][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9856.326036][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9856.326037][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9856.326039][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9856.326041][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9856.326042][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9856.326044][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9856.326046][    C3]  vfs_write (fs/read_write.c:686)
[ 9856.326048][    C3]  ksys_write (fs/read_write.c:739)
[ 9856.326050][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9856.326052][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9856.326054][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9856.326057][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9856.326058][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9856.326060][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9856.326061][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9856.326062][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9856.326063][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9856.326064][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9856.326064][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9856.326065][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9863.125071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9863.125280][    C3] rcu: 3-....: (8914868 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3398101
| [ 9863.125582][    C3] rcu: (t=8918433 jiffies g=527745 q=170766 ncpus=4)
| [ 9863.125722][    C3] Tainted: [L]=SOFTLOCKUP
[ 9863.125722][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9863.125723][    C3] RIP: 0010:kasan_check_range (mm/kasan/generic.c:97 mm/kasan/generic.c:115 mm/kasan/generic.c:140 mm/kasan/generic.c:172 mm/kasan/generic.c:191 mm/kasan/generic.c:200)
[ 9863.125727][    C3] Code: 4c 89 d1 4c 89 d8 4c 29 d9 e9 19 ff ff ff 48 85 c9 74 8c 4c 01 c9 eb 1b 0f 1f 00 66 66 2e 0f 1f 84 00 00 00 00 00 48 83 c0 01 <48> 39 c8 0f 84 6c ff ff ff 80 38 00 74 ee e9 47 ff ff ff b8 01 00
All code
========
   0:	4c 89 d1             	mov    %r10,%rcx
   3:	4c 89 d8             	mov    %r11,%rax
   6:	4c 29 d9             	sub    %r11,%rcx
   9:	e9 19 ff ff ff       	jmp    0xffffffffffffff27
   e:	48 85 c9             	test   %rcx,%rcx
  11:	74 8c                	je     0xffffffffffffff9f
  13:	4c 01 c9             	add    %r9,%rcx
  16:	eb 1b                	jmp    0x33
  18:	0f 1f 00             	nopl   (%rax)
  1b:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  22:	00 00 00 00 
  26:	48 83 c0 01          	add    $0x1,%rax
  2a:*	48 39 c8             	cmp    %rcx,%rax		<-- trapping instruction
  2d:	0f 84 6c ff ff ff    	je     0xffffffffffffff9f
  33:	80 38 00             	cmpb   $0x0,(%rax)
  36:	74 ee                	je     0x26
  38:	e9 47 ff ff ff       	jmp    0xffffffffffffff84
  3d:	b8                   	.byte 0xb8
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	48 39 c8             	cmp    %rcx,%rax
   3:	0f 84 6c ff ff ff    	je     0xffffffffffffff75
   9:	80 38 00             	cmpb   $0x0,(%rax)
   c:	74 ee                	je     0xfffffffffffffffc
   e:	e9 47 ff ff ff       	jmp    0xffffffffffffff5a
  13:	b8                   	.byte 0xb8
  14:	01 00                	add    %eax,(%rax)
[ 9863.125728][    C3] RSP: 0018:ffa0000000717560 EFLAGS: 00000286
[ 9863.125730][    C3] RAX: ffe21c000221716a RBX: ffe21c0002217169 RCX: ffe21c000221716a
[ 9863.125731][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9863.125732][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9863.125733][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9863.125733][    C3] R13: ffe21c0002217169 R14: ff110000110b8b4b R15: ff110000110b8b48
[ 9863.125735][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9863.125738][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9863.125738][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9863.125739][    C3] PKRU: 55555554
[ 9863.125740][    C3] Call Trace:
[ 9863.125741][    C3]  <TASK>
[ 9863.125742][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[ 9863.125744][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9863.125746][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9863.125748][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9863.125750][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9863.125752][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9863.125754][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9863.125756][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9863.125759][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9863.125762][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9863.125763][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9863.125766][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9863.125768][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9863.125770][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9863.125772][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9863.125774][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9863.125776][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9863.125778][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9863.125780][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9863.125782][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9863.125784][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9863.125786][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9863.125789][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9863.125791][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9863.125792][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9863.125794][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9863.125796][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9863.125797][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9863.125799][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9863.125801][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9863.125802][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9863.125804][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9863.125806][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9863.125807][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9863.125809][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9863.125810][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9863.125812][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9863.125814][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9863.125815][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9863.125817][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9863.125818][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9863.125821][    C3]  vfs_write (fs/read_write.c:686)
[ 9863.125823][    C3]  ksys_write (fs/read_write.c:739)
[ 9863.125825][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9863.125826][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9863.125828][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9863.125831][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9863.125832][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9863.125833][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9863.125834][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9863.125836][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9863.125836][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9863.125837][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9863.125838][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9863.125838][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9888.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9888.385093][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9888.385095][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9888.385100][    C3] Tainted: [L]=SOFTLOCKUP
[ 9888.385101][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9888.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9888.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9888.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9888.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9888.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9888.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9888.385108][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9888.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9888.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9888.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9888.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9888.385115][    C3] PKRU: 55555554
[ 9888.385116][    C3] Call Trace:
[ 9888.385118][    C3]  <TASK>
[ 9888.385119][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9888.385121][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9888.385123][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9888.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9888.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9888.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9888.385132][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9888.385134][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9888.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9888.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9888.385141][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9888.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9888.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9888.385147][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9888.385149][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9888.385151][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9888.385154][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9888.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9888.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9888.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9888.385161][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9888.385164][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9888.385166][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9888.385168][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9888.385170][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9888.385171][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9888.385173][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9888.385175][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9888.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9888.385178][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9888.385180][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9888.385182][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9888.385183][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9888.385185][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9888.385187][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9888.385188][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9888.385190][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9888.385192][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9888.385193][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9888.385195][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9888.385197][    C3]  vfs_write (fs/read_write.c:686)
[ 9888.385199][    C3]  ksys_write (fs/read_write.c:739)
[ 9888.385201][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9888.385203][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9888.385205][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9888.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9888.385209][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9888.385211][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9888.385212][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9888.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9888.385214][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9888.385215][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9888.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9888.385216][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9916.385090][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9916.385092][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9916.385094][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9916.385099][    C3] Tainted: [L]=SOFTLOCKUP
[ 9916.385100][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9916.385101][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9916.385103][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9916.385105][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9916.385106][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9916.385107][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9916.385108][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9916.385109][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9916.385109][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9916.385111][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9916.385114][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9916.385115][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9916.385116][    C3] PKRU: 55555554
[ 9916.385116][    C3] Call Trace:
[ 9916.385118][    C3]  <TASK>
[ 9916.385120][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9916.385122][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9916.385124][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9916.385126][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9916.385128][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9916.385130][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9916.385133][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9916.385135][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9916.385137][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9916.385139][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9916.385142][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9916.385144][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9916.385146][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9916.385148][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9916.385150][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9916.385152][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9916.385155][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9916.385156][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9916.385158][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9916.385160][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9916.385162][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9916.385165][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9916.385167][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9916.385169][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9916.385171][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9916.385172][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9916.385174][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9916.385176][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9916.385177][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9916.385179][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9916.385181][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9916.385183][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9916.385184][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9916.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9916.385188][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9916.385189][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9916.385191][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9916.385193][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9916.385194][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9916.385196][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9916.385198][    C3]  vfs_write (fs/read_write.c:686)
[ 9916.385200][    C3]  ksys_write (fs/read_write.c:739)
[ 9916.385202][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9916.385204][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9916.385206][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9916.385208][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9916.385210][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9916.385212][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9916.385213][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9916.385214][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9916.385215][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9916.385216][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9916.385216][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9916.385217][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9941.128072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [ 9941.128288][    C3] rcu: 3-....: (8992845 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3426532
| [ 9941.128525][    C3] rcu: (t=8996436 jiffies g=527745 q=171906 ncpus=4)
| [ 9941.128666][    C3] Tainted: [L]=SOFTLOCKUP
[ 9941.128667][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9941.128667][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9941.128671][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9941.128672][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9941.128674][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9941.128675][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9941.128676][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9941.128677][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9941.128677][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9941.128680][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9941.128683][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9941.128684][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9941.128685][    C3] PKRU: 55555554
[ 9941.128685][    C3] Call Trace:
[ 9941.128686][    C3]  <TASK>
[ 9941.128687][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9941.128689][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9941.128691][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9941.128694][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9941.128696][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9941.128698][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9941.128700][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9941.128702][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9941.128705][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9941.128707][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9941.128709][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9941.128712][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9941.128714][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9941.128715][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9941.128718][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9941.128719][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9941.128722][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9941.128724][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9941.128726][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9941.128728][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9941.128729][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9941.128732][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9941.128735][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9941.128736][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9941.128738][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9941.128740][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9941.128741][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9941.128743][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9941.128744][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9941.128746][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9941.128748][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9941.128750][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9941.128751][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9941.128753][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9941.128755][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9941.128756][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9941.128758][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9941.128760][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9941.128761][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9941.128763][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9941.128765][    C3]  vfs_write (fs/read_write.c:686)
[ 9941.128767][    C3]  ksys_write (fs/read_write.c:739)
[ 9941.128769][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9941.128771][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9941.128773][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9941.128775][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9941.128777][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9941.128778][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9941.128779][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9941.128781][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9941.128782][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9941.128783][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9941.128783][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9941.128784][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9954.629642][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [ 9954.629822][   T17] Sending NMI from CPU 2 to CPUs 3:
| [ 9954.629999][    C3] NMI backtrace for cpu 3
| [ 9954.630006][    C3] Tainted: [L]=SOFTLOCKUP
[ 9954.630007][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9954.630008][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9954.630011][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9954.630012][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9954.630013][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9954.630014][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9954.630015][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9954.630016][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9954.630017][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9954.630019][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9954.630021][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9954.630023][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9954.630023][    C3] PKRU: 55555554
[ 9954.630024][    C3] Call Trace:
[ 9954.630026][    C3]  <TASK>
[ 9954.630028][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9954.630030][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9954.630032][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9954.630034][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9954.630036][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9954.630038][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9954.630041][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9954.630043][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9954.630046][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9954.630047][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9954.630050][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9954.630052][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9954.630054][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9954.630056][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9954.630058][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9954.630060][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9954.630063][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9954.630064][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9954.630067][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9954.630071][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9954.630073][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9954.630076][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9954.630078][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9954.630080][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9954.630082][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9954.630084][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9954.630085][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9954.630087][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9954.630089][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9954.630090][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9954.630093][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9954.630094][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9954.630096][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9954.630098][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9954.630099][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9954.630101][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9954.630103][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9954.630105][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9954.630106][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9954.630108][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9954.630110][    C3]  vfs_write (fs/read_write.c:686)
[ 9954.630112][    C3]  ksys_write (fs/read_write.c:739)
[ 9954.630114][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9954.630116][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9954.630118][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9954.630121][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9954.630123][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9954.630124][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9954.630125][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9954.630127][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9954.630128][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9954.630128][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9954.630129][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9954.630130][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [ 9980.385099][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [ 9980.385101][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [ 9980.385103][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [ 9980.385109][    C3] Tainted: [L]=SOFTLOCKUP
[ 9980.385110][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9980.385110][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[ 9980.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[ 9980.385114][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[ 9980.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[ 9980.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[ 9980.385117][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[ 9980.385118][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[ 9980.385119][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[ 9980.385121][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[ 9980.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 9980.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[ 9980.385125][    C3] PKRU: 55555554
[ 9980.385125][    C3] Call Trace:
[ 9980.385127][    C3]  <TASK>
[ 9980.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[ 9980.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[ 9980.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[ 9980.385135][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[ 9980.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[ 9980.385139][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9980.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[ 9980.385144][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[ 9980.385147][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[ 9980.385149][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[ 9980.385151][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[ 9980.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[ 9980.385156][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[ 9980.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[ 9980.385160][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[ 9980.385162][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[ 9980.385164][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[ 9980.385166][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9980.385168][    C3]  ? release_sock (net/core/sock.c:3794)
[ 9980.385170][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[ 9980.385172][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[ 9980.385175][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9980.385177][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[ 9980.385179][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[ 9980.385181][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[ 9980.385182][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9980.385184][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[ 9980.385186][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[ 9980.385187][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[ 9980.385189][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9980.385191][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[ 9980.385193][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[ 9980.385195][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[ 9980.385196][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[ 9980.385198][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[ 9980.385200][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[ 9980.385202][    C3]  ? new_sync_read (fs/read_write.c:584)
[ 9980.385203][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[ 9980.385205][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[ 9980.385207][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[ 9980.385209][    C3]  vfs_write (fs/read_write.c:686)
[ 9980.385211][    C3]  ksys_write (fs/read_write.c:739)
[ 9980.385213][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[ 9980.385215][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[ 9980.385217][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[ 9980.385220][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[ 9980.385222][    C3] RIP: 0033:0x7fe34bf6dc5e
[ 9980.385223][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[ 9980.385224][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[ 9980.385225][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[ 9980.385226][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[ 9980.385227][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[ 9980.385228][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[ 9980.385228][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10008.385089][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [10008.385090][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [10008.385092][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [10008.385097][    C3] Tainted: [L]=SOFTLOCKUP
[10008.385098][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10008.385098][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10008.385101][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10008.385102][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10008.385103][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10008.385104][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10008.385105][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10008.385105][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10008.385106][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10008.385108][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10008.385111][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10008.385111][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10008.385112][    C3] PKRU: 55555554
[10008.385113][    C3] Call Trace:
[10008.385115][    C3]  <TASK>
[10008.385116][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10008.385118][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10008.385120][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10008.385123][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10008.385125][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10008.385127][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10008.385129][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10008.385131][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10008.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10008.385136][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10008.385139][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10008.385141][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10008.385143][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10008.385145][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10008.385147][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10008.385149][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10008.385152][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10008.385154][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10008.385156][    C3]  ? release_sock (net/core/sock.c:3794)
[10008.385158][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10008.385159][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10008.385162][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10008.385164][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10008.385166][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10008.385168][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10008.385170][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10008.385171][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10008.385173][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10008.385175][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10008.385176][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10008.385178][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10008.385180][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10008.385182][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10008.385183][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10008.385185][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10008.385186][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10008.385188][    C3]  ? new_sync_read (fs/read_write.c:584)
[10008.385190][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10008.385191][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10008.385193][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10008.385195][    C3]  vfs_write (fs/read_write.c:686)
[10008.385197][    C3]  ksys_write (fs/read_write.c:739)
[10008.385199][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10008.385201][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10008.385203][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10008.385206][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10008.385207][    C3] RIP: 0033:0x7fe34bf6dc5e
[10008.385209][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10008.385210][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10008.385211][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10008.385212][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10008.385212][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10008.385213][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10008.385214][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10019.132071][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [10019.132278][    C3] rcu: 3-....: (9070816 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3454938
| [10019.132494][    C3] rcu: (t=9074440 jiffies g=527745 q=173403 ncpus=4)
| [10019.132674][    C3] Tainted: [L]=SOFTLOCKUP
[10019.132675][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10019.132676][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10019.132678][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10019.132679][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10019.132680][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10019.132681][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10019.132682][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10019.132683][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10019.132683][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10019.132685][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10019.132687][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10019.132688][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10019.132689][    C3] PKRU: 55555554
[10019.132690][    C3] Call Trace:
[10019.132690][    C3]  <TASK>
[10019.132691][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10019.132693][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10019.132695][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10019.132697][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10019.132699][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10019.132701][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10019.132703][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10019.132705][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10019.132708][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10019.132710][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10019.132712][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10019.132715][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10019.132717][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10019.132719][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10019.132721][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10019.132723][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10019.132725][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10019.132727][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10019.132729][    C3]  ? release_sock (net/core/sock.c:3794)
[10019.132731][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10019.132732][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10019.132736][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10019.132738][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10019.132739][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10019.132741][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10019.132743][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10019.132744][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10019.132746][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10019.132748][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10019.132749][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10019.132752][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10019.132753][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10019.132755][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10019.132757][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10019.132758][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10019.132760][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10019.132761][    C3]  ? new_sync_read (fs/read_write.c:584)
[10019.132763][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10019.132765][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10019.132766][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10019.132769][    C3]  vfs_write (fs/read_write.c:686)
[10019.132771][    C3]  ksys_write (fs/read_write.c:739)
[10019.132773][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10019.132775][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10019.132777][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10019.132779][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10019.132781][    C3] RIP: 0033:0x7fe34bf6dc5e
[10019.132782][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10019.132783][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10019.132784][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10019.132785][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10019.132786][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10019.132786][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10019.132787][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10044.385092][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [10044.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [10044.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [10044.385101][    C3] Tainted: [L]=SOFTLOCKUP
[10044.385102][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10044.385103][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10044.385105][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10044.385106][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10044.385108][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10044.385109][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10044.385110][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10044.385111][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10044.385111][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10044.385113][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10044.385116][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10044.385117][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10044.385118][    C3] PKRU: 55555554
[10044.385118][    C3] Call Trace:
[10044.385120][    C3]  <TASK>
[10044.385122][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10044.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10044.385127][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10044.385130][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10044.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10044.385133][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10044.385136][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10044.385138][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10044.385141][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10044.385143][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10044.385145][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10044.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10044.385150][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10044.385151][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10044.385153][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10044.385155][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10044.385158][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10044.385160][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10044.385162][    C3]  ? release_sock (net/core/sock.c:3794)
[10044.385164][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10044.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10044.385169][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10044.385175][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10044.385176][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10044.385178][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10044.385180][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10044.385181][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10044.385183][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10044.385185][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10044.385186][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10044.385189][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10044.385190][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10044.385192][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10044.385194][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10044.385196][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10044.385198][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10044.385200][    C3]  ? new_sync_read (fs/read_write.c:584)
[10044.385201][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10044.385203][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10044.385204][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10044.385207][    C3]  vfs_write (fs/read_write.c:686)
[10044.385209][    C3]  ksys_write (fs/read_write.c:739)
[10044.385211][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10044.385212][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10044.385215][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10044.385217][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10044.385219][    C3] RIP: 0033:0x7fe34bf6dc5e
[10044.385221][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10044.385222][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10044.385223][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10044.385224][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10044.385225][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10044.385226][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10044.385226][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10052.933559][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [10052.933729][   T17] Sending NMI from CPU 2 to CPUs 3:
| [10052.933885][    C3] NMI backtrace for cpu 3
| [10052.933891][    C3] Tainted: [L]=SOFTLOCKUP
[10052.933892][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10052.933893][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10052.933895][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10052.933897][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10052.933898][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10052.933899][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10052.933900][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10052.933901][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10052.933901][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10052.933903][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10052.933906][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10052.933906][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10052.933907][    C3] PKRU: 55555554
[10052.933908][    C3] Call Trace:
[10052.933910][    C3]  <TASK>
[10052.933911][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10052.933913][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10052.933915][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10052.933918][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10052.933920][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10052.933922][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10052.933924][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10052.933926][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10052.933929][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10052.933931][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10052.933933][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10052.933936][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10052.933938][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10052.933940][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10052.933942][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10052.933944][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10052.933946][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10052.933948][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10052.933950][    C3]  ? release_sock (net/core/sock.c:3794)
[10052.933952][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10052.933954][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10052.933957][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10052.933959][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10052.933961][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10052.933963][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10052.933964][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10052.933966][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10052.933968][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10052.933969][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10052.933971][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10052.933973][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10052.933975][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10052.933976][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10052.933978][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10052.933980][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10052.933982][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10052.933983][    C3]  ? new_sync_read (fs/read_write.c:584)
[10052.933985][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10052.933986][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10052.933988][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10052.933990][    C3]  vfs_write (fs/read_write.c:686)
[10052.933992][    C3]  ksys_write (fs/read_write.c:739)
[10052.933994][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10052.933996][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10052.933998][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10052.934000][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10052.934002][    C3] RIP: 0033:0x7fe34bf6dc5e
[10052.934004][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10052.934005][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10052.934006][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10052.934007][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10052.934008][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10052.934008][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10052.934009][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10080.385098][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [10080.385099][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [10080.385101][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [10080.385107][    C3] Tainted: [L]=SOFTLOCKUP
[10080.385108][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10080.385109][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10080.385112][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10080.385113][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10080.385115][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10080.385116][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10080.385116][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10080.385117][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10080.385118][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10080.385120][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10080.385123][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10080.385124][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10080.385125][    C3] PKRU: 55555554
[10080.385125][    C3] Call Trace:
[10080.385127][    C3]  <TASK>
[10080.385129][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10080.385131][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10080.385133][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10080.385136][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10080.385138][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10080.385140][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10080.385142][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10080.385145][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10080.385148][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10080.385149][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10080.385152][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10080.385154][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10080.385157][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10080.385158][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10080.385160][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10080.385163][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10080.385165][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10080.385167][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10080.385169][    C3]  ? release_sock (net/core/sock.c:3794)
[10080.385171][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10080.385173][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10080.385176][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10080.385178][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10080.385180][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10080.385182][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10080.385184][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10080.385185][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10080.385187][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10080.385189][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10080.385190][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10080.385193][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10080.385194][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10080.385196][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10080.385198][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10080.385200][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10080.385202][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10080.385203][    C3]  ? new_sync_read (fs/read_write.c:584)
[10080.385205][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10080.385207][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10080.385209][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10080.385211][    C3]  vfs_write (fs/read_write.c:686)
[10080.385213][    C3]  ksys_write (fs/read_write.c:739)
[10080.385215][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10080.385217][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10080.385219][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10080.385222][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10080.385224][    C3] RIP: 0033:0x7fe34bf6dc5e
[10080.385226][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10080.385227][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10080.385228][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10080.385229][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10080.385229][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10080.385230][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10080.385231][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10097.135072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [10097.135273][    C3] rcu: 3-....: (9148786 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3484843
| [10097.135581][    C3] rcu: (t=9152443 jiffies g=527745 q=174900 ncpus=4)
| [10097.135722][    C3] Tainted: [L]=SOFTLOCKUP
[10097.135723][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10097.135724][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10097.135726][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10097.135727][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10097.135729][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10097.135730][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10097.135731][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10097.135731][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10097.135732][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10097.135734][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10097.135737][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10097.135738][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10097.135739][    C3] PKRU: 55555554
[10097.135739][    C3] Call Trace:
[10097.135740][    C3]  <TASK>
[10097.135741][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10097.135743][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10097.135745][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10097.135748][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10097.135750][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10097.135752][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10097.135754][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10097.135756][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10097.135759][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10097.135761][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10097.135763][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10097.135766][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10097.135768][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10097.135769][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10097.135772][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10097.135773][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10097.135776][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10097.135778][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10097.135780][    C3]  ? release_sock (net/core/sock.c:3794)
[10097.135782][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10097.135784][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10097.135787][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10097.135789][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10097.135791][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10097.135793][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10097.135794][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10097.135795][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10097.135797][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10097.135799][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10097.135800][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10097.135803][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10097.135804][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10097.135806][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10097.135808][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10097.135809][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10097.135811][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10097.135812][    C3]  ? new_sync_read (fs/read_write.c:584)
[10097.135814][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10097.135816][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10097.135817][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10097.135820][    C3]  vfs_write (fs/read_write.c:686)
[10097.135822][    C3]  ksys_write (fs/read_write.c:739)
[10097.135824][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10097.135825][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10097.135827][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10097.135830][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10097.135831][    C3] RIP: 0033:0x7fe34bf6dc5e
[10097.135833][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10097.135834][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10097.135835][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10097.135836][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10097.135837][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10097.135837][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10097.135838][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10124.385093][    C3] hardirqs last disabled at (23711): _raw_spin_lock_irqsave (./include/linux/spinlock_api_smp.h:108 (discriminator 7) kernel/locking/spinlock.c:162 (discriminator 7))
| [10124.385094][    C3] softirqs last  enabled at (23668): __mptcp_retrans (net/mptcp/protocol.c:2766)
| [10124.385096][    C3] softirqs last disabled at (23670): __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
| [10124.385102][    C3] Tainted: [L]=SOFTLOCKUP
[10124.385103][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10124.385104][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[10124.385106][    C3] Code: 89 fc 49 c1 ed 03 41 83 e4 07 49 01 c5 41 83 c4 03 be 04 00 00 00 48 89 df e8 5f 2f 52 fe 41 0f b6 45 00 41 38 c4 7c 08 84 c0 <0f> 85 30 06 00 00 8b 03 89 44 24 48 85 c0 0f 85 8d 03 00 00 48 89
All code
========
   0:	89 fc                	mov    %edi,%esp
   2:	49 c1 ed 03          	shr    $0x3,%r13
   6:	41 83 e4 07          	and    $0x7,%r12d
   a:	49 01 c5             	add    %rax,%r13
   d:	41 83 c4 03          	add    $0x3,%r12d
  11:	be 04 00 00 00       	mov    $0x4,%esi
  16:	48 89 df             	mov    %rbx,%rdi
  19:	e8 5f 2f 52 fe       	call   0xfffffffffe522f7d
  1e:	41 0f b6 45 00       	movzbl 0x0(%r13),%eax
  23:	41 38 c4             	cmp    %al,%r12b
  26:	7c 08                	jl     0x30
  28:	84 c0                	test   %al,%al
  2a:*	0f 85 30 06 00 00    	jne    0x660		<-- trapping instruction
  30:	8b 03                	mov    (%rbx),%eax
  32:	89 44 24 48          	mov    %eax,0x48(%rsp)
  36:	85 c0                	test   %eax,%eax
  38:	0f 85 8d 03 00 00    	jne    0x3cb
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	0f 85 30 06 00 00    	jne    0x636
   6:	8b 03                	mov    (%rbx),%eax
   8:	89 44 24 48          	mov    %eax,0x48(%rsp)
   c:	85 c0                	test   %eax,%eax
   e:	0f 85 8d 03 00 00    	jne    0x3a1
  14:	48                   	rex.W
  15:	89                   	.byte 0x89
[10124.385107][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000246
[10124.385109][    C3] RAX: 0000000000000000 RBX: ff110000110b8b48 RCX: 0000000000000001
[10124.385110][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10124.385111][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10124.385112][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10124.385112][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10124.385114][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10124.385117][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10124.385118][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10124.385119][    C3] PKRU: 55555554
[10124.385119][    C3] Call Trace:
[10124.385121][    C3]  <TASK>
[10124.385123][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10124.385125][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10124.385128][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10124.385130][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10124.385132][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10124.385134][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10124.385137][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10124.385139][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10124.385142][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10124.385144][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10124.385146][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10124.385148][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10124.385151][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10124.385152][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10124.385154][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10124.385156][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10124.385159][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10124.385161][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10124.385163][    C3]  ? release_sock (net/core/sock.c:3794)
[10124.385165][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10124.385166][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10124.385170][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10124.385172][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10124.385174][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10124.385176][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10124.385177][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10124.385179][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10124.385181][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10124.385182][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10124.385184][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10124.385186][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10124.385188][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10124.385189][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10124.385191][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10124.385193][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10124.385194][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10124.385196][    C3]  ? new_sync_read (fs/read_write.c:584)
[10124.385198][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10124.385199][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10124.385201][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10124.385203][    C3]  vfs_write (fs/read_write.c:686)
[10124.385205][    C3]  ksys_write (fs/read_write.c:739)
[10124.385207][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10124.385209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10124.385211][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10124.385214][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10124.385216][    C3] RIP: 0033:0x7fe34bf6dc5e
[10124.385218][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10124.385219][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10124.385221][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10124.385221][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10124.385222][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10124.385223][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10124.385224][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10151.236589][   T17] rcu: blocking rcu_node structures (internal RCU debug):
| [10151.236791][   T17] Sending NMI from CPU 2 to CPUs 3:
| [10151.236990][    C3] NMI backtrace for cpu 3
| [10151.236998][    C3] Tainted: [L]=SOFTLOCKUP
[10151.236998][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10151.237000][    C3] RIP: 0010:queued_spin_lock_slowpath (./arch/x86/include/asm/qspinlock.h:106 kernel/locking/qspinlock.c:141)
[10151.237003][    C3] Code: 8b 13 81 fa 00 01 00 00 74 df 41 89 d5 44 89 6c 24 58 41 81 fd ff 00 00 00 0f 87 0e fd ff ff e9 95 fe ff ff 89 44 24 48 f3 90 <e9> 3f fc ff ff 41 8d 46 01 41 c1 e5 10 c1 e0 12 41 09 c5 be 02 00
All code
========
   0:	8b 13                	mov    (%rbx),%edx
   2:	81 fa 00 01 00 00    	cmp    $0x100,%edx
   8:	74 df                	je     0xffffffffffffffe9
   a:	41 89 d5             	mov    %edx,%r13d
   d:	44 89 6c 24 58       	mov    %r13d,0x58(%rsp)
  12:	41 81 fd ff 00 00 00 	cmp    $0xff,%r13d
  19:	0f 87 0e fd ff ff    	ja     0xfffffffffffffd2d
  1f:	e9 95 fe ff ff       	jmp    0xfffffffffffffeb9
  24:	89 44 24 48          	mov    %eax,0x48(%rsp)
  28:	f3 90                	pause
  2a:*	e9 3f fc ff ff       	jmp    0xfffffffffffffc6e		<-- trapping instruction
  2f:	41 8d 46 01          	lea    0x1(%r14),%eax
  33:	41 c1 e5 10          	shl    $0x10,%r13d
  37:	c1 e0 12             	shl    $0x12,%eax
  3a:	41 09 c5             	or     %eax,%r13d
  3d:	be                   	.byte 0xbe
  3e:	02 00                	add    (%rax),%al

Code starting with the faulting instruction
===========================================
   0:	e9 3f fc ff ff       	jmp    0xfffffffffffffc44
   5:	41 8d 46 01          	lea    0x1(%r14),%eax
   9:	41 c1 e5 10          	shl    $0x10,%r13d
   d:	c1 e0 12             	shl    $0x12,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	be                   	.byte 0xbe
  14:	02 00                	add    (%rax),%al
[10151.237004][    C3] RSP: 0018:ffa0000000717580 EFLAGS: 00000202
[10151.237006][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10151.237007][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10151.237008][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10151.237008][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10151.237009][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10151.237011][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10151.237014][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10151.237015][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10151.237016][    C3] PKRU: 55555554
[10151.237016][    C3] Call Trace:
[10151.237018][    C3]  <TASK>
[10151.237020][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10151.237023][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10151.237025][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10151.237027][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10151.237029][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10151.237031][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10151.237034][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10151.237036][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10151.237039][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10151.237040][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10151.237042][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10151.237045][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10151.237047][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10151.237049][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10151.237051][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10151.237053][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10151.237056][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10151.237057][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10151.237060][    C3]  ? release_sock (net/core/sock.c:3794)
[10151.237062][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10151.237064][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10151.237067][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10151.237071][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10151.237073][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10151.237075][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10151.237077][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10151.237078][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10151.237080][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10151.237082][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10151.237083][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10151.237086][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10151.237087][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10151.237089][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10151.237091][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10151.237092][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10151.237094][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10151.237096][    C3]  ? new_sync_read (fs/read_write.c:584)
[10151.237098][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10151.237099][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10151.237101][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10151.237103][    C3]  vfs_write (fs/read_write.c:686)
[10151.237105][    C3]  ksys_write (fs/read_write.c:739)
[10151.237107][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10151.237109][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10151.237111][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10151.237113][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10151.237116][    C3] RIP: 0033:0x7fe34bf6dc5e
[10151.237118][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10151.237119][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10151.237120][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10151.237121][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10151.237122][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10151.237123][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870
[10151.237123][    C3] R13: 0000000000002000 R14: 0000000000001f9c R15: 0000000000001f9c
| [10175.138072][    C3] rcu: INFO: rcu_preempt self-detected stall on CPU
| [10175.138307][    C3] rcu: 3-....: (9226765 ticks this GP) idle=1adc/1/0x4000000000000000 softirq=503095/503095 fqs=3515360
| [10175.138596][    C3] rcu: (t=9230446 jiffies g=527745 q=176007 ncpus=4)
| [10175.138735][    C3] Tainted: [L]=SOFTLOCKUP
[10175.138736][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[10175.138737][    C3] RIP: 0010:__kasan_check_read (mm/kasan/shadow.c:30)
[10175.138741][    C3] Code: 8b 05 f4 df b4 03 49 8b 40 20 48 39 c7 72 0f 48 05 00 80 00 00 48 39 c7 0f 82 dc 0e 22 ff 90 0f 0b 90 c3 0f 1f 80 00 00 00 00 <f3> 0f 1e fa 48 8b 0c 24 89 f6 31 d2 e9 8f f5 ff ff 0f 1f 40 00 66
All code
========
   0:	8b 05 f4 df b4 03    	mov    0x3b4dff4(%rip),%eax        # 0x3b4dffa
   6:	49 8b 40 20          	mov    0x20(%r8),%rax
   a:	48 39 c7             	cmp    %rax,%rdi
   d:	72 0f                	jb     0x1e
   f:	48 05 00 80 00 00    	add    $0x8000,%rax
  15:	48 39 c7             	cmp    %rax,%rdi
  18:	0f 82 dc 0e 22 ff    	jb     0xffffffffff220efa
  1e:	90                   	nop
  1f:	0f 0b                	ud2
  21:	90                   	nop
  22:	c3                   	ret
  23:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  2a:*	f3 0f 1e fa          	endbr64		<-- trapping instruction
  2e:	48 8b 0c 24          	mov    (%rsp),%rcx
  32:	89 f6                	mov    %esi,%esi
  34:	31 d2                	xor    %edx,%edx
  36:	e9 8f f5 ff ff       	jmp    0xfffffffffffff5ca
  3b:	0f 1f 40 00          	nopl   0x0(%rax)
  3f:	66                   	data16

Code starting with the faulting instruction
===========================================
   0:	f3 0f 1e fa          	endbr64
   4:	48 8b 0c 24          	mov    (%rsp),%rcx
   8:	89 f6                	mov    %esi,%esi
   a:	31 d2                	xor    %edx,%edx
   c:	e9 8f f5 ff ff       	jmp    0xfffffffffffff5a0
  11:	0f 1f 40 00          	nopl   0x0(%rax)
  15:	66                   	data16
[10175.138742][    C3] RSP: 0018:ffa0000000717578 EFLAGS: 00000202
[10175.138745][    C3] RAX: 0000000000000001 RBX: ff110000110b8b48 RCX: 0000000000000001
[10175.138746][    C3] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ff110000110b8b48
[10175.138747][    C3] RBP: 1ff40000000e2eb3 R08: ffffffffba1380f1 R09: ffe21c0002217169
[10175.138747][    C3] R10: ffe21c000221716a R11: 0000000000000000 R12: 0000000000000003
[10175.138748][    C3] R13: ffe21c0002217169 R14: 000000000000001c R15: ff110000110b8b48
[10175.138750][    C3] FS:  00007fe34befc740(0000) GS:ff110000791f7000(0000) knlGS:0000000000000000
[10175.138753][    C3] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[10175.138754][    C3] CR2: 00007ffcb9b57000 CR3: 00000000105e5002 CR4: 0000000000771ef0
[10175.138755][    C3] PKRU: 55555554
[10175.138755][    C3] Call Trace:
[10175.138756][    C3]  <TASK>
[10175.138757][    C3]  queued_spin_lock_slowpath (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./arch/x86/include/asm/qspinlock.h:102 kernel/locking/qspinlock.c:141)
[10175.138759][    C3]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:79 (discriminator 1))
[10175.138761][    C3]  ? _raw_write_unlock_irqrestore (kernel/locking/qspinlock.c:131)
[10175.138763][    C3]  ? __printk_cpu_sync_put (./include/linux/atomic/atomic-arch-fallback.h:524 (discriminator 5) ./include/linux/atomic/atomic-instrumented.h:87 (discriminator 5) kernel/printk/printk.c:5043 (discriminator 5))
[10175.138766][    C3]  do_raw_spin_lock (./include/asm-generic/qspinlock.h:114 kernel/locking/spinlock_debug.c:116)
[10175.138768][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:114)
[10175.138770][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10175.138772][    C3]  __mptcp_try_fallback (net/mptcp/protocol.c:89)
[10175.138774][    C3]  mptcp_sendmsg_frag (net/mptcp/protocol.h:1296 (discriminator 1) net/mptcp/protocol.c:1264 (discriminator 1) net/mptcp/protocol.c:1413 (discriminator 1))
[10175.138777][    C3]  ? __mptcp_try_fallback (net/mptcp/protocol.c:1278)
[10175.138779][    C3]  ? __mptcp_retrans (./include/linux/instrumented.h:68 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 net/mptcp/protocol.h:1267 net/mptcp/protocol.c:2775)
[10175.138781][    C3]  __mptcp_retrans (net/mptcp/protocol.c:2782)
[10175.138784][    C3]  ? mptcp_check_and_set_pending (net/mptcp/protocol.c:2720)
[10175.138786][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[10175.138787][    C3]  ? mark_held_locks (kernel/locking/lockdep.c:4325 (discriminator 1))
[10175.138789][    C3]  mptcp_release_cb (net/mptcp/protocol.c:3621)
[10175.138792][    C3]  ? sk_reset_timer (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:749 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:253 (discriminator 4) ./include/linux/refcount.h:283 (discriminator 4) ./include/linux/refcount.h:366 (discriminator 4) ./include/linux/refcount.h:383 (discriminator 4) ./include/net/sock.h:821 (discriminator 4) net/core/sock.c:3678 (discriminator 4) net/core/sock.c:3674 (discriminator 4))
[10175.138794][    C3]  ? __mptcp_push_pending (net/mptcp/protocol.c:3590)
[10175.138796][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10175.138798][    C3]  ? release_sock (net/core/sock.c:3794)
[10175.138800][    C3]  release_sock (./include/net/sock.h:1801 ./include/net/sock.h:1806 net/core/sock.c:3801)
[10175.138802][    C3]  mptcp_sendmsg (net/mptcp/protocol.c:1865)
[10175.138805][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10175.138807][    C3]  ? mptcp_stream_accept (net/mptcp/protocol.c:1865)
[10175.138809][    C3]  ? ovl_sync_status (fs/overlayfs/util.c:1528)
[10175.138811][    C3]  ? vfs_iter_write (./include/linux/percpu-rwsem.h:134 (discriminator 3) ./include/linux/fs.h:1911 (discriminator 3) ./include/linux/fs.h:2004 (discriminator 3) ./include/linux/fs.h:3133 (discriminator 3) fs/read_write.c:984 (discriminator 3))
[10175.138812][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10175.138813][    C3]  ? ovl_llseek (fs/overlayfs/file.c:346)
[10175.138815][    C3]  sock_write_iter (net/socket.c:730 (discriminator 1) net/socket.c:742 (discriminator 1) net/socket.c:1195 (discriminator 1))
[10175.138817][    C3]  ? __up_write (kernel/locking/rwsem.c:1388 (discriminator 3))
[10175.138818][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10175.138821][    C3]  ? ovl_open_realfile (fs/overlayfs/file.c:293)
[10175.138822][    C3]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[10175.138824][    C3]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[10175.138826][    C3]  ? ____sys_recvmsg (net/socket.c:1176)
[10175.138827][    C3]  new_sync_write (fs/read_write.c:594 (discriminator 1))
[10175.138829][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[10175.138830][    C3]  ? new_sync_read (fs/read_write.c:584)
[10175.138832][    C3]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[10175.138833][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[10175.138835][    C3]  ? perf_trace_sched_switch (kernel/sched/core.c:8882)
[10175.138837][    C3]  vfs_write (fs/read_write.c:686)
[10175.138839][    C3]  ksys_write (fs/read_write.c:739)
[10175.138841][    C3]  ? __ia32_sys_read (fs/read_write.c:728)
[10175.138843][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[10175.138845][    C3]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[10175.138847][    C3]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[10175.138849][    C3] RIP: 0033:0x7fe34bf6dc5e
[10175.138851][    C3] Code: 4d 89 d8 e8 14 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 14 bd 00 00       	call   0xbd1c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[10175.138852][    C3] RSP: 002b:00007fff0be0d650 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[10175.138853][    C3] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe34bf6dc5e
[10175.138854][    C3] RDX: 0000000000001f9c RSI: 00007fff0be0f8d4 RDI: 0000000000000005
[10175.138855][    C3] RBP: 00007fff0be0d660 R08: 0000000000000000 R09: 0000000000000000
[10175.138855][    C3] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fff0be0f870


Finger prints:
queued_spin_lock_slowpath:do_raw_spin_lock:__mptcp_try_fallback:mptcp_sendmsg_frag:__mptcp_retrans
_raw_spin_unlock_irqrestore:_raw_spin_lock_irqsave:__mptcp_retrans:__mptcp_retrans:queued_spin_lock_slowpath
_raw_spin_lock_irqsave:__mptcp_retrans:__mptcp_retrans:queued_spin_lock_slowpath:do_raw_spin_lock
__schedule:schedule:synchronize_rcu_expedited:namespace_unlock:free_nsproxy
_raw_spin_lock_irqsave:__mptcp_retrans:__mptcp_retrans:kasan_check_range:queued_spin_lock_slowpath
__kasan_check_read:queued_spin_lock_slowpath:do_raw_spin_lock:__mptcp_try_fallback:mptcp_sendmsg_frag
_raw_spin_lock_irqsave:__mptcp_retrans:__mptcp_retrans:__kasan_check_read:queued_spin_lock_slowpath
__schedule:schedule:schedule_preempt_disabled:__mutex_lock:exp_funnel_lock
validate_chain:__lock_acquire:_raw_spin_lock_bh:__mptcp_try_fallback:mptcp_sendmsg_frag
kasan_check_range:queued_spin_lock_slowpath:do_raw_spin_lock:__mptcp_try_fallback:mptcp_sendmsg_frag