======================================
| [   19.186572][  T338] softirqs last disabled at (46481): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.186574][  T338] Preemption disabled at:
| [   19.186574][  T338] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.186583][  T338] Tainted: [W]=WARN
[   19.186584][  T338] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   19.186586][  T338] Call Trace:
[   19.186587][  T338]  <TASK>
[   19.186589][  T338]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.186594][  T338]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.186596][  T338]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.186600][  T338]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.186604][  T338]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.186609][  T338]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.186611][  T338]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.186618][  T338]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.186620][  T338]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.186624][  T338]  put_chars (drivers/char/virtio_console.c:1176)
[   19.186627][  T338]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.186630][  T338]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.186635][  T338]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.186641][  T338]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.186644][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.186647][  T338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.186655][  T338]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.186659][  T338]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.186663][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.186665][  T338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.186669][  T338]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.186673][  T338]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.186674][  T338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.186679][  T338]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.186682][  T338]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.186683][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.186685][  T338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   19.186689][  T338]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.186690][  T338]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.186693][  T338]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.186697][  T338]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.186699][  T338]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.186701][  T338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.186703][  T338]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   19.186707][  T338]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   19.186711][  T338]  _printk (kernel/printk/printk.c:2504)
[   19.186714][  T338]  ? snapshot_read.cold (user.c:?)
[   19.186717][  T338]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   19.186720][  T338]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   19.186724][  T338]  ? configfs_register_subsystem (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1383 fs/configfs/dir.c:173 fs/configfs/dir.c:171 fs/configfs/dir.c:1929)
[   19.186728][  T338] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   19.186731][  T338]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   19.186737][  T338]  ? cleanup_netconsole (./include/linux/list.h:99 (discriminator 2) ./include/linux/list.h:169 (discriminator 2) ./include/linux/list.h:206 (discriminator 2) ./include/linux/configfs.h:112 (discriminator 2) drivers/net/netconsole.c:1718 (discriminator 2)) netconsole
[   19.186739][  T338]  do_one_initcall (init/main.c:1357)
[   19.186743][  T338]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   19.186747][  T338]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   19.186750][  T338]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   19.186755][  T338]  do_init_module (kernel/module/main.c:3117)
[   19.186758][  T338]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   19.186763][  T338]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   19.186766][  T338]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   19.186769][  T338]  load_module (kernel/module/main.c:3593)
[   19.186776][  T338]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   19.186779][  T338]  ? __ia32_sys_fsconfig (??:?)
[   19.186782][  T338]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[   19.186787][  T338]  init_module_from_file (kernel/module/main.c:3790)
[   19.186790][  T338]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   19.186797][  T338]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.186801][  T338]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.186803][  T338]  idempotent_init_module (kernel/module/main.c:3802)
[   19.186807][  T338]  ? init_module_from_file (kernel/module/main.c:3791)
[   19.186812][  T338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.186814][  T338]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   19.186820][  T338]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   19.186822][  T338]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.186826][  T338]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.186828][  T338]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.186830][  T338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.186832][  T338] RIP: 0033:0x7efff433b37d
[   19.186836][  T338] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.186837][  T338] RSP: 002b:00007fff818295d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   19.186840][  T338] RAX: ffffffffffffffda RBX: 000055e443710700 RCX: 00007efff433b37d
[   19.186841][  T338] RDX: 0000000000000000 RSI: 000055e40be3bffd RDI: 0000000000000005
[   19.186842][  T338] RBP: 00007fff81829670 R08: 0000000000000000 R09: 0000000000000000
[   19.186843][  T338] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e40be3bffd
[   19.186844][  T338] R13: 000055e443710810 R14: 0000000000040000 R15: 0000000000000000
| [   20.581038][  T337] softirqs last disabled at (353481): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   20.581042][  T337] Preemption disabled at:
| [   20.581043][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.581053][  T337] Tainted: [W]=WARN
[   20.581054][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   20.581055][  T337] Call Trace:
[   20.581057][  T337]  <TASK>
[   20.581059][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.581064][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.581067][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.581071][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.581075][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.581080][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   20.581082][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.581089][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   20.581092][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.581096][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   20.581099][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.581101][  T337]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   20.581104][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.581107][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.581111][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.581115][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.581116][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.581120][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.581124][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.581127][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.581130][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.581134][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.581138][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.581140][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.581144][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.581148][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.581150][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.581155][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.581157][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.581159][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.581161][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   20.581165][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.581167][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.581170][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.581173][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.581176][  T337]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   20.581181][  T337]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   20.581185][  T337]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   20.581189][  T337]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   20.581191][  T337]  ? idr_get_free (??:?)
[   20.581194][  T337]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   20.581197][  T337]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   20.581200][  T337]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   20.581202][  T337]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.581207][  T337]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.581209][  T337]  new_sync_write (fs/read_write.c:595)
[   20.581214][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   20.581218][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.581223][  T337]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   20.581226][  T337]  vfs_write (fs/read_write.c:687)
[   20.581230][  T337]  ksys_write (fs/read_write.c:739)
[   20.581233][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   20.581235][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.581239][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.581241][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.581245][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.581247][  T337] RIP: 0033:0x7ff23d8ff312
[   20.581251][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   20.581253][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.581255][  T337] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007ff23d8ff312
[   20.581257][  T337] RDX: 00000000000002ee RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   20.581258][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   20.581259][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   20.581260][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   21.595936][  T337] softirqs last disabled at (381390): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   21.595938][  T337] Preemption disabled at:
| [   21.595939][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.595947][  T337] Tainted: [W]=WARN
[   21.595948][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   21.595950][  T337] Call Trace:
[   21.595952][  T337]  <TASK>
[   21.595955][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.595961][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.595963][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.595967][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.595971][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.595976][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.595979][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.595985][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.595988][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.595991][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   21.595995][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.595997][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.596001][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.596003][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.596008][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.596012][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.596017][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.596020][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.596025][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.596029][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.596034][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.596036][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.596044][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.596049][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.596051][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.596056][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.596059][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.596061][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.596063][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   21.596067][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.596068][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.596072][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.596076][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.596079][  T337]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   21.596080][  T337]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   21.596085][  T337]  _printk (kernel/printk/printk.c:2504)
[   21.596088][  T337]  ? snapshot_read.cold (user.c:?)
[   21.596090][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.596094][  T337]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   21.596096][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.596100][  T337]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   21.596103][  T337]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   21.596108][  T337] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   21.596110][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.596114][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   21.596116][  T337]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   21.596118][  T337]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   21.596121][  T337]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   21.596125][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   21.596127][  T337]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   21.596129][  T337]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   21.596132][  T337]  new_sync_write (fs/read_write.c:595)
[   21.596136][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.596138][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   21.596142][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.596144][  T337]  ? ksys_write (fs/read_write.c:739)
[   21.596150][  T337]  vfs_write (fs/read_write.c:687)
[   21.596154][  T337]  ksys_write (fs/read_write.c:739)
[   21.596157][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   21.596160][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.596163][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.596165][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.596168][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.596171][  T337] RIP: 0033:0x7ff23d8ff312
[   21.596175][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   21.596177][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   21.596179][  T337] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff23d8ff312
[   21.596181][  T337] RDX: 0000000000000001 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   21.596182][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   21.596183][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   21.596184][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   22.644463][  T337] softirqs last disabled at (413160): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.644466][  T337] Preemption disabled at:
| [   22.644466][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.644476][  T337] Tainted: [W]=WARN
[   22.644477][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   22.644478][  T337] Call Trace:
[   22.644480][  T337]  <TASK>
[   22.644482][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.644487][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.644490][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.644494][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.644498][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.644503][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.644505][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.644512][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.644514][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.644518][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   22.644522][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.644523][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.644528][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.644530][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.644535][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.644538][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.644544][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.644547][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.644552][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.644556][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.644560][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.644563][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.644567][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.644571][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.644573][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.644578][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.644581][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.644583][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.644585][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   22.644589][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.644590][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.644594][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.644597][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.644600][  T337]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   22.644602][  T337]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   22.644606][  T337]  _printk (kernel/printk/printk.c:2504)
[   22.644609][  T337]  ? snapshot_read.cold (user.c:?)
[   22.644611][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.644615][  T337]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   22.644617][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   22.644621][  T337]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   22.644624][  T337]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   22.644629][  T337] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   22.644632][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.644635][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   22.644637][  T337]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   22.644639][  T337]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   22.644642][  T337]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   22.644646][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   22.644648][  T337]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   22.644650][  T337]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   22.644653][  T337]  new_sync_write (fs/read_write.c:595)
[   22.644657][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.644660][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   22.644667][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.644669][  T337]  ? ksys_write (fs/read_write.c:739)
[   22.644676][  T337]  vfs_write (fs/read_write.c:687)
[   22.644680][  T337]  ksys_write (fs/read_write.c:739)
[   22.644683][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   22.644685][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.644689][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.644691][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.644694][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.644697][  T337] RIP: 0033:0x7ff23d8ff312
[   22.644700][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   22.644702][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   22.644705][  T337] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff23d8ff312
[   22.644707][  T337] RDX: 0000000000000001 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   22.644708][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   22.644709][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   22.644710][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   24.043736][  T337] softirqs last disabled at (452413): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   24.043738][  T337] Preemption disabled at:
| [   24.043739][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.043748][  T337] Tainted: [W]=WARN
[   24.043749][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   24.043751][  T337] Call Trace:
[   24.043752][  T337]  <TASK>
[   24.043754][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.043760][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.043762][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.043766][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.043770][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.043775][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.043778][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.043784][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.043786][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.043790][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   24.043793][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.043795][  T337]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   24.043798][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.043801][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.043805][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.043809][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.043811][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.043815][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.043818][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.043821][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.043825][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.043828][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.043833][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.043835][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.043839][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.043842][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.043844][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.043849][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.043852][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.043853][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.043856][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   24.043859][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.043861][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.043864][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.043867][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.043871][  T337]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   24.043876][  T337]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   24.043879][  T337]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   24.043883][  T337]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   24.043885][  T337]  ? idr_get_free (??:?)
[   24.043889][  T337]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   24.043892][  T337]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   24.043894][  T337]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   24.043897][  T337]  ? vprintk_default (kernel/printk/printk.c:2494)
[   24.043901][  T337]  ? vprintk_default (kernel/printk/printk.c:2494)
[   24.043903][  T337]  new_sync_write (fs/read_write.c:595)
[   24.043909][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   24.043913][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.043918][  T337]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   24.043921][  T337]  vfs_write (fs/read_write.c:687)
[   24.043925][  T337]  ksys_write (fs/read_write.c:739)
[   24.043928][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   24.043930][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.043934][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.043936][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.043939][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.043942][  T337] RIP: 0033:0x7ff23d8ff312
[   24.043946][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   24.043948][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.043951][  T337] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007ff23d8ff312
[   24.043953][  T337] RDX: 00000000000002ee RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   24.043954][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   24.043955][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   24.043955][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   25.044393][  T337] softirqs last disabled at (477769): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   25.044395][  T337] Preemption disabled at:
| [   25.044396][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.044406][  T337] Tainted: [W]=WARN
[   25.044407][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   25.044409][  T337] Call Trace:
[   25.044410][  T337]  <TASK>
[   25.044412][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.044417][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.044420][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.044424][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.044428][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.044433][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   25.044436][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.044443][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.044445][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.044449][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   25.044452][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.044454][  T337]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   25.044458][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.044460][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.044465][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.044468][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.044470][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.044474][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.044478][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.044481][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.044485][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.044489][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.044493][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.044496][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.044500][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.044504][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.044506][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.044511][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.044514][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.044516][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.044518][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   25.044522][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.044524][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.044527][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.044531][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.044533][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.044535][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.044536][  T337]  ? enabled_store (./include/linux/console.h:573 drivers/net/netconsole.c:1037) netconsole
[   25.044539][  T337]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.044543][  T337]  _printk (kernel/printk/printk.c:2504)
[   25.044546][  T337]  ? snapshot_read.cold (user.c:?)
[   25.044550][  T337]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   25.044553][  T337]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   25.044558][  T337]  ? panic_on_this_cpu (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/panic.c:489)
[   25.044562][  T337] netconsole_print_banner (drivers/net/netconsole.c:738 (discriminator 1)) netconsole
[   25.044566][  T337] enabled_store.cold (drivers/net/netconsole.c:1054) netconsole
[   25.044568][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.044572][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   25.044574][  T337]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   25.044576][  T337]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   25.044579][  T337]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   25.044583][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   25.044585][  T337]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   25.044587][  T337]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   25.044590][  T337]  new_sync_write (fs/read_write.c:595)
[   25.044594][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.044596][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   25.044600][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.044602][  T337]  ? ksys_write (fs/read_write.c:739)
[   25.044608][  T337]  vfs_write (fs/read_write.c:687)
[   25.044612][  T337]  ksys_write (fs/read_write.c:739)
[   25.044615][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   25.044618][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.044621][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.044624][  T337]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.044628][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.044630][  T337] RIP: 0033:0x7ff23d8ff312
[   25.044634][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   25.044636][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   25.044638][  T337] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff23d8ff312
[   25.044640][  T337] RDX: 0000000000000001 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   25.044641][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   25.044642][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   25.044643][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   26.126990][  T337] softirqs last disabled at (499564): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   26.126993][  T337] Preemption disabled at:
| [   26.126993][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.127004][  T337] Tainted: [W]=WARN
[   26.127004][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   26.127006][  T337] Call Trace:
[   26.127008][  T337]  <TASK>
[   26.127010][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.127016][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.127018][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.127023][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.127027][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.127032][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.127034][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.127042][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.127045][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.127049][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   26.127052][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.127054][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.127059][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.127061][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.127066][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.127069][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.127075][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.127078][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.127083][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.127087][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.127092][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.127094][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.127098][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.127102][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.127104][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.127110][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.127113][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.127114][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.127117][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   26.127120][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.127122][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.127126][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.127130][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.127133][  T337]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   26.127134][  T337]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   26.127139][  T337]  _printk (kernel/printk/printk.c:2504)
[   26.127142][  T337]  ? snapshot_read.cold (user.c:?)
[   26.127144][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.127148][  T337]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.127150][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.127154][  T337]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.127157][  T337]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   26.127162][  T337] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   26.127165][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.127169][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   26.127171][  T337]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   26.127173][  T337]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   26.127176][  T337]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   26.127180][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   26.127182][  T337]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   26.127184][  T337]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   26.127187][  T337]  new_sync_write (fs/read_write.c:595)
[   26.127191][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.127193][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   26.127197][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.127199][  T337]  ? ksys_write (fs/read_write.c:739)
[   26.127205][  T337]  vfs_write (fs/read_write.c:687)
[   26.127209][  T337]  ksys_write (fs/read_write.c:739)
[   26.127212][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   26.127215][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.127218][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.127221][  T337]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   26.127224][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.127227][  T337] RIP: 0033:0x7ff23d8ff312
[   26.127230][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   26.127232][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   26.127235][  T337] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff23d8ff312
[   26.127236][  T337] RDX: 0000000000000001 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   26.127237][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   26.127238][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   26.127239][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   27.526942][  T337] softirqs last disabled at (525165): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.526944][  T337] Preemption disabled at:
| [   27.526945][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.526954][  T337] Tainted: [W]=WARN
[   27.526955][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   27.526957][  T337] Call Trace:
[   27.526959][  T337]  <TASK>
[   27.526961][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.526966][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.526968][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.526973][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.526977][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.526982][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.526985][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.526991][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.526994][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.526997][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   27.527001][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.527002][  T337]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   27.527006][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.527009][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.527012][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.527016][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.527018][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.527022][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.527025][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.527029][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.527032][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.527036][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.527042][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.527044][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.527048][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.527052][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.527054][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.527059][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.527061][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.527063][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.527065][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   27.527068][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.527070][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.527073][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.527077][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.527080][  T337]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   27.527085][  T337]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   27.527089][  T337]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   27.527093][  T337]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   27.527095][  T337]  ? idr_get_free (??:?)
[   27.527098][  T337]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   27.527101][  T337]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   27.527103][  T337]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   27.527106][  T337]  ? vprintk_default (kernel/printk/printk.c:2494)
[   27.527110][  T337]  ? vprintk_default (kernel/printk/printk.c:2494)
[   27.527113][  T337]  new_sync_write (fs/read_write.c:595)
[   27.527118][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   27.527122][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.527126][  T337]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   27.527130][  T337]  vfs_write (fs/read_write.c:687)
[   27.527134][  T337]  ksys_write (fs/read_write.c:739)
[   27.527136][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   27.527139][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.527143][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.527145][  T337]  ? irq_exit_rcu (kernel/softirq.c:786)
[   27.527147][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.527150][  T337] RIP: 0033:0x7ff23d8ff312
[   27.527154][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   27.527156][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   27.527159][  T337] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007ff23d8ff312
[   27.527160][  T337] RDX: 0000000000000316 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   27.527161][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   27.527162][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   27.527164][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   28.566157][  T337] softirqs last disabled at (571740): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   28.566159][  T337] Preemption disabled at:
| [   28.566160][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.566169][  T337] Tainted: [W]=WARN
[   28.566170][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   28.566172][  T337] Call Trace:
[   28.566174][  T337]  <TASK>
[   28.566175][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.566181][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.566183][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.566188][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.566192][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.566197][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   28.566199][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.566206][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.566209][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.566213][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   28.566216][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.566218][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.566223][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.566225][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.566230][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.566233][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.566238][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.566242][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.566247][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.566250][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.566255][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.566257][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.566261][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.566266][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.566268][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.566273][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.566276][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.566278][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.566280][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   28.566284][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.566285][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.566289][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.566293][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.566296][  T337]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   28.566297][  T337]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   28.566301][  T337]  _printk (kernel/printk/printk.c:2504)
[   28.566305][  T337]  ? snapshot_read.cold (user.c:?)
[   28.566307][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.566311][  T337]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   28.566313][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.566317][  T337]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   28.566320][  T337]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   28.566324][  T337] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   28.566328][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.566332][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   28.566334][  T337]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   28.566336][  T337]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   28.566338][  T337]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   28.566342][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   28.566344][  T337]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   28.566347][  T337]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   28.566350][  T337]  new_sync_write (fs/read_write.c:595)
[   28.566353][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.566356][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   28.566360][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.566361][  T337]  ? ksys_write (fs/read_write.c:739)
[   28.566368][  T337]  vfs_write (fs/read_write.c:687)
[   28.566372][  T337]  ksys_write (fs/read_write.c:739)
[   28.566374][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   28.566377][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.566381][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.566383][  T337]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   28.566386][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.566389][  T337] RIP: 0033:0x7ff23d8ff312
[   28.566392][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   28.566394][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   28.566397][  T337] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff23d8ff312
[   28.566399][  T337] RDX: 0000000000000001 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   28.566400][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   28.566401][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390
[   28.566402][  T337] R13: 0000563cd3f122b0 R14: 0000000000000009 R15: 00007ff23d6f90d0
| [   29.567496][  T337] softirqs last disabled at (598110): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   29.567498][  T337] Preemption disabled at:
| [   29.567499][  T337] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.567509][  T337] Tainted: [W]=WARN
[   29.567510][  T337] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.567511][  T337] Call Trace:
[   29.567513][  T337]  <TASK>
[   29.567514][  T337]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.567520][  T337]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.567522][  T337]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.567526][  T337]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.567530][  T337]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.567535][  T337]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.567538][  T337]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.567544][  T337]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.567547][  T337]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.567550][  T337]  put_chars (drivers/char/virtio_console.c:1176)
[   29.567553][  T337]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.567555][  T337]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.567559][  T337]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.567562][  T337]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.567566][  T337]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.567570][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.567575][  T337]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.567578][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.567583][  T337]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.567587][  T337]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.567592][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.567594][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.567598][  T337]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.567602][  T337]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.567604][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.567609][  T337]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.567612][  T337]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.567614][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.567616][  T337]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   29.567620][  T337]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.567622][  T337]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.567625][  T337]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.567629][  T337]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.567631][  T337]  ? rcu_gp_is_expedited (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 kernel/rcu/update.c:196)
[   29.567633][  T337]  ? synchronize_rcu (kernel/rcu/tree.c:3410)
[   29.567637][  T337]  _printk (kernel/printk/printk.c:2504)
[   29.567641][  T337]  ? snapshot_read.cold (user.c:?)
[   29.567642][  T337]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.567646][  T337]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.567648][  T337]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.567652][  T337]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   29.567655][  T337]  ? __free_object (./include/linux/irqflags.h:266 (discriminator 6) lib/debugobjects.c:536 (discriminator 6))
[   29.567660][  T337] enabled_store.cold (drivers/net/netconsole.c:1071 (discriminator 1)) netconsole
[   29.567663][  T337]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.567666][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   29.567668][  T337]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   29.567670][  T337]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   29.567673][  T337]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   29.567677][  T337]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   29.567679][  T337]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   29.567681][  T337]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   29.567684][  T337]  new_sync_write (fs/read_write.c:595)
[   29.567690][  T337]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.567693][  T337]  ? new_sync_read (./include/linux/ioprio.h:41)
[   29.567696][  T337]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.567698][  T337]  ? ksys_write (fs/read_write.c:739)
[   29.567705][  T337]  vfs_write (fs/read_write.c:687)
[   29.567709][  T337]  ksys_write (fs/read_write.c:739)
[   29.567711][  T337]  ? __ia32_sys_read (fs/read_write.c:723)
[   29.567714][  T337]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.567718][  T337]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.567720][  T337]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   29.567723][  T337]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.567726][  T337] RIP: 0033:0x7ff23d8ff312
[   29.567730][  T337] Code: 08 0f 85 71 41 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 55 bf 01 00
All code
========
   0:	08 0f                	or     %cl,(%rdi)
   2:	85 71 41             	test   %esi,0x41(%rcx)
   5:	ff                   	(bad)
   6:	ff 49 89             	decl   -0x77(%rcx)
   9:	fb                   	sti
   a:	48 89 f0             	mov    %rsi,%rax
   d:	48 89 d7             	mov    %rdx,%rdi
  10:	48 89 ce             	mov    %rcx,%rsi
  13:	4c 89 c2             	mov    %r8,%rdx
  16:	4d 89 ca             	mov    %r9,%r10
  19:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
  1e:	4c 8b 4c 24 10       	mov    0x10(%rsp),%r9
  23:	4c 89 5c 24 08       	mov    %r11,0x8(%rsp)
  28:	0f 05                	syscall
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  32:	00 00 00 
  35:	0f 1f 00             	nopl   (%rax)
  38:	f3 0f 1e fa          	endbr64
  3c:	55                   	push   %rbp
  3d:	bf                   	.byte 0xbf
  3e:	01 00                	add    %eax,(%rax)

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   8:	00 00 00 
   b:	0f 1f 00             	nopl   (%rax)
   e:	f3 0f 1e fa          	endbr64
  12:	55                   	push   %rbp
  13:	bf                   	.byte 0xbf
  14:	01 00                	add    %eax,(%rax)
[   29.567731][  T337] RSP: 002b:00007ffc11fc1898 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   29.567734][  T337] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff23d8ff312
[   29.567736][  T337] RDX: 0000000000000001 RSI: 0000563cd3f122b0 RDI: 0000000000000009
[   29.567737][  T337] RBP: 00007ffc11fc18c0 R08: 0000000000000000 R09: 0000000000000000
[   29.567738][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff23d76c390


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars