======================================
| [   11.915833][  T201] softirqs last disabled at (38109): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.915836][  T201] Preemption disabled at:
| [   11.915837][  T201] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.915846][  T201] Tainted: [W]=WARN
[   11.915847][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.915849][  T201] Call Trace:
[   11.915850][  T201]  <TASK>
[   11.915852][  T201]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.915858][  T201]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.915860][  T201]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.915865][  T201]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.915869][  T201]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.915874][  T201]  __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))
[   11.915877][  T201]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.915884][  T201]  ? 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)
[   11.915887][  T201]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.915891][  T201]  put_chars (drivers/char/virtio_console.c:1176)
[   11.915894][  T201]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.915898][  T201]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.915903][  T201]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.915911][  T201]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.915914][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.915918][  T201]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.915922][  T201]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.915926][  T201]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.915931][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.915933][  T201]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.915937][  T201]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.915942][  T201]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.915944][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.915950][  T201]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.915952][  T201]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.915955][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.915957][  T201]  ? 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))
[   11.915961][  T201]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.915963][  T201]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.915966][  T201]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.915971][  T201]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.915973][  T201]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.915976][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.915978][  T201]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   11.915982][  T201]  ? 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
[   11.915986][  T201]  _printk (kernel/printk/printk.c:2504)
[   11.915990][  T201]  ? snapshot_read.cold (user.c:?)
[   11.915993][  T201]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   11.915996][  T201]  ? 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
[   11.916000][  T201]  ? 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)
[   11.916004][  T201] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   11.916008][  T201]  ? 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
[   11.916015][  T201]  ? 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
[   11.916018][  T201]  do_one_initcall (init/main.c:1357)
[   11.916021][  T201]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.916026][  T201]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.916029][  T201]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.916034][  T201]  do_init_module (kernel/module/main.c:3117)
[   11.916038][  T201]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.916043][  T201]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.916046][  T201]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.916057][  T201]  load_module (kernel/module/main.c:3593)
[   11.916064][  T201]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.916068][  T201]  ? __ia32_sys_fsconfig (??:?)
[   11.916071][  T201]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[   11.916074][  T201]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.916078][  T201]  init_module_from_file (kernel/module/main.c:3790)
[   11.916082][  T201]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   11.916090][  T201]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.916094][  T201]  ? 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)
[   11.916097][  T201]  idempotent_init_module (kernel/module/main.c:3802)
[   11.916101][  T201]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.916108][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.916110][  T201]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.916116][  T201]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.916119][  T201]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.916123][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.916126][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.916129][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.916131][  T201] RIP: 0033:0x7f424f65537d
[   11.916135][  T201] 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
[   11.916137][  T201] RSP: 002b:00007ffc86cf6e88 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.916140][  T201] RAX: ffffffffffffffda RBX: 000055c594508700 RCX: 00007f424f65537d
[   11.916141][  T201] RDX: 0000000000000000 RSI: 000055c583469ffd RDI: 0000000000000005
[   11.916142][  T201] RBP: 00007ffc86cf6f20 R08: 0000000000000000 R09: 0000000000000000
[   11.916143][  T201] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c583469ffd
[   11.916144][  T201] R13: 000055c594508810 R14: 0000000000040000 R15: 0000000000000000
| [   13.029913][  T200] softirqs last disabled at (370317): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.029916][  T200] Preemption disabled at:
| [   13.029917][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.029927][  T200] Tainted: [W]=WARN
[   13.029928][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.029930][  T200] Call Trace:
[   13.029932][  T200]  <TASK>
[   13.029934][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.029940][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.029943][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.029948][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.029952][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.029957][  T200]  __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))
[   13.029961][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.029968][  T200]  ? 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)
[   13.029971][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.029975][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   13.029979][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.029982][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.029986][  T200]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   13.029991][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.029995][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.029997][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.030002][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.030007][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.030011][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.030016][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.030020][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.030026][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.030028][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.030033][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.030038][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.030040][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.030046][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.030049][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.030052][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.030054][  T200]  ? 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))
[   13.030065][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.030068][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.030072][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.030076][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.030083][  T200]  _printk (kernel/printk/printk.c:2504)
[   13.030087][  T200]  ? snapshot_read.cold (user.c:?)
[   13.030089][  T200]  ? preempt_schedule_common (kernel/sched/core.c:7449)
[   13.030094][  T200]  ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
[   13.030102][  T200]  register_console (kernel/printk/printk.c:4212 (discriminator 7))
[   13.030106][  T200]  ? get_init_console_seq.constprop.0.isra.0 (kernel/printk/printk.c:4018)
[   13.030109][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.030115][  T200] enabled_store (drivers/net/netconsole.c:1039) netconsole
[   13.030118][  T200]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.030122][  T200]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   13.030124][  T200]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   13.030127][  T200]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   13.030130][  T200]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   13.030134][  T200]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   13.030137][  T200]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   13.030139][  T200]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   13.030142][  T200]  new_sync_write (fs/read_write.c:595)
[   13.030145][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.030149][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.030152][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.030154][  T200]  ? ksys_write (fs/read_write.c:739)
[   13.030162][  T200]  vfs_write (fs/read_write.c:687)
[   13.030166][  T200]  ksys_write (fs/read_write.c:739)
[   13.030169][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.030172][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.030177][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.030180][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.030184][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.030186][  T200] RIP: 0033:0x7f654cd17312
[   13.030191][  T200] 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)
[   13.030193][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.030196][  T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f654cd17312
[   13.030198][  T200] RDX: 0000000000000001 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   13.030199][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   13.030200][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   13.030201][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   14.339920][  T200] softirqs last disabled at (406107): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.339923][  T200] Preemption disabled at:
| [   14.339924][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.339934][  T200] Tainted: [W]=WARN
[   14.339935][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.339936][  T200] Call Trace:
[   14.339938][  T200]  <TASK>
[   14.339940][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.339946][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.339948][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.339953][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.339957][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.339962][  T200]  __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))
[   14.339965][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.339972][  T200]  ? 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)
[   14.339975][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.339979][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   14.339982][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.339984][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.339988][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.339991][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.339996][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.340000][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.340002][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.340006][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.340010][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.340014][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.340018][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.340022][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.340026][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.340029][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.340033][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.340037][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.340039][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.340044][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.340047][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.340049][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.340052][  T200]  ? 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))
[   14.340055][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.340057][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.340061][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.340064][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.340068][  T200]  ? _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)
[   14.340080][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.340084][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.340088][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.340090][  T200]  ? idr_get_free (??:?)
[   14.340094][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.340097][  T200]  ? _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)
[   14.340100][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.340103][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.340107][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.340110][  T200]  new_sync_write (fs/read_write.c:595)
[   14.340114][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.340118][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.340123][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   14.340127][  T200]  vfs_write (fs/read_write.c:687)
[   14.340131][  T200]  ksys_write (fs/read_write.c:739)
[   14.340134][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.340137][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.340141][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.340144][  T200]  ? irq_exit_rcu (kernel/softirq.c:786)
[   14.340147][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.340149][  T200] RIP: 0033:0x7f654cd17312
[   14.340153][  T200] 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)
[   14.340155][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.340159][  T200] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f654cd17312
[   14.340160][  T200] RDX: 00000000000002ee RSI: 0000561b30e932b0 RDI: 0000000000000009
[   14.340161][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   14.340162][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   14.340163][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   15.464807][  T200] softirqs last disabled at (421543): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   15.464809][  T200] Preemption disabled at:
| [   15.464810][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.464820][  T200] Tainted: [W]=WARN
[   15.464821][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.464823][  T200] Call Trace:
[   15.464825][  T200]  <TASK>
[   15.464826][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.464832][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.464835][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.464840][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.464844][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.464849][  T200]  __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))
[   15.464852][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.464859][  T200]  ? 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)
[   15.464862][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.464866][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   15.464870][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.464872][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.464876][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.464879][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.464883][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.464887][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.464889][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.464893][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.464897][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.464901][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.464905][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.464909][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.464914][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.464916][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.464920][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.464925][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.464927][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.464932][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.464935][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.464937][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.464939][  T200]  ? 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))
[   15.464943][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.464945][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.464948][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.464952][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.464956][  T200]  ? _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)
[   15.464961][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.464965][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.464969][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.464971][  T200]  ? idr_get_free (??:?)
[   15.464975][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.464978][  T200]  ? _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)
[   15.464981][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.464984][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.464988][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.464991][  T200]  new_sync_write (fs/read_write.c:595)
[   15.464996][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.464999][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.465004][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   15.465008][  T200]  vfs_write (fs/read_write.c:687)
[   15.465013][  T200]  ksys_write (fs/read_write.c:739)
[   15.465015][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.465018][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.465022][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.465025][  T200]  ? irq_exit_rcu (kernel/softirq.c:786)
[   15.465028][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.465030][  T200] RIP: 0033:0x7f654cd17312
[   15.465035][  T200] 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)
[   15.465037][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.465040][  T200] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f654cd17312
[   15.465042][  T200] RDX: 00000000000002ee RSI: 0000561b30e932b0 RDI: 0000000000000009
[   15.465043][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   15.465044][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   15.465045][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   16.561468][  T200] softirqs last disabled at (437215): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.561470][  T200] Preemption disabled at:
| [   16.561471][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.561482][  T200] Tainted: [W]=WARN
[   16.561483][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.561485][  T200] Call Trace:
[   16.561487][  T200]  <TASK>
[   16.561488][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.561494][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.561497][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.561502][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.561506][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.561511][  T200]  __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))
[   16.561514][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.561520][  T200]  ? 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)
[   16.561523][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.561527][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   16.561531][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.561533][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   16.561536][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.561540][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.561544][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.561548][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.561549][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.561554][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.561558][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.561561][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.561565][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.561569][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.561574][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.561576][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.561580][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.561585][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.561587][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.561592][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.561595][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.561597][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.561599][  T200]  ? 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))
[   16.561603][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.561605][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.561609][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.561612][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.561616][  T200]  ? _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)
[   16.561621][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   16.561625][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   16.561629][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   16.561631][  T200]  ? idr_get_free (??:?)
[   16.561634][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   16.561637][  T200]  ? _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)
[   16.561640][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   16.561643][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   16.561648][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   16.561650][  T200]  new_sync_write (fs/read_write.c:595)
[   16.561655][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   16.561658][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.561663][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   16.561667][  T200]  vfs_write (fs/read_write.c:687)
[   16.561672][  T200]  ksys_write (fs/read_write.c:739)
[   16.561674][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   16.561677][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.561681][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.561683][  T200]  ? irq_exit_rcu (kernel/softirq.c:786)
[   16.561686][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.561689][  T200] RIP: 0033:0x7f654cd17312
[   16.561693][  T200] 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)
[   16.561695][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   16.561698][  T200] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f654cd17312
[   16.561700][  T200] RDX: 00000000000002ee RSI: 0000561b30e932b0 RDI: 0000000000000009
[   16.561701][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   16.561702][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   16.561703][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   17.847196][  T200] softirqs last disabled at (473033): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.847198][  T200] Preemption disabled at:
| [   17.847199][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.847210][  T200] Tainted: [W]=WARN
[   17.847211][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.847213][  T200] Call Trace:
[   17.847214][  T200]  <TASK>
[   17.847216][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.847223][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.847225][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.847230][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.847234][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.847240][  T200]  __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))
[   17.847243][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.847250][  T200]  ? 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)
[   17.847253][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.847257][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   17.847261][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.847263][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.847267][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.847270][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.847274][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.847279][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.847280][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.847285][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.847289][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.847293][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.847297][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.847301][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.847305][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.847308][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.847312][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.847317][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.847319][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.847324][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.847327][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.847329][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.847332][  T200]  ? 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))
[   17.847335][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.847337][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.847341][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.847345][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.847348][  T200]  ? _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)
[   17.847354][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.847359][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.847366][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.847369][  T200]  ? idr_get_free (??:?)
[   17.847374][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.847377][  T200]  ? _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)
[   17.847380][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.847383][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.847388][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.847391][  T200]  new_sync_write (fs/read_write.c:595)
[   17.847395][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.847399][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.847404][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   17.847408][  T200]  vfs_write (fs/read_write.c:687)
[   17.847412][  T200]  ksys_write (fs/read_write.c:739)
[   17.847415][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.847418][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.847422][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.847425][  T200]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   17.847428][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.847431][  T200] RIP: 0033:0x7f654cd17312
[   17.847435][  T200] 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)
[   17.847437][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.847441][  T200] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f654cd17312
[   17.847442][  T200] RDX: 00000000000002ee RSI: 0000561b30e932b0 RDI: 0000000000000009
[   17.847443][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   17.847444][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   17.847445][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   19.162250][  T200] softirqs last disabled at (524115): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.162253][  T200] Preemption disabled at:
| [   19.162254][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.162265][  T200] Tainted: [W]=WARN
[   19.162266][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.162268][  T200] Call Trace:
[   19.162270][  T200]  <TASK>
[   19.162271][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.162278][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.162280][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.162285][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.162289][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.162295][  T200]  __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))
[   19.162297][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.162304][  T200]  ? 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)
[   19.162307][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.162311][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   19.162314][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.162317][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.162320][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.162324][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.162328][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.162332][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.162334][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.162338][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.162342][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.162346][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.162350][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.162354][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.162359][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.162363][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.162370][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.162375][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.162377][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.162382][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.162385][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.162387][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.162390][  T200]  ? 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))
[   19.162394][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.162396][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.162399][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.162403][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.162406][  T200]  ? _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)
[   19.162412][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.162415][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.162419][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.162422][  T200]  ? idr_get_free (??:?)
[   19.162426][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.162429][  T200]  ? _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)
[   19.162432][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.162435][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.162439][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.162442][  T200]  new_sync_write (fs/read_write.c:595)
[   19.162447][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.162450][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.162455][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   19.162459][  T200]  vfs_write (fs/read_write.c:687)
[   19.162464][  T200]  ksys_write (fs/read_write.c:739)
[   19.162469][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.162472][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.162476][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.162479][  T200]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   19.162482][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.162484][  T200] RIP: 0033:0x7f654cd17312
[   19.162489][  T200] 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)
[   19.162491][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.162495][  T200] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f654cd17312
[   19.162496][  T200] RDX: 0000000000000316 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   19.162497][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   19.162498][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   19.162499][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   20.331473][  T200] softirqs last disabled at (584942): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   20.331475][  T200] Preemption disabled at:
| [   20.331476][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.331486][  T200] Tainted: [W]=WARN
[   20.331487][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.331489][  T200] Call Trace:
[   20.331491][  T200]  <TASK>
[   20.331493][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.331499][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.331501][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.331506][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.331510][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.331516][  T200]  __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))
[   20.331518][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.331525][  T200]  ? 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)
[   20.331528][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.331532][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   20.331535][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.331537][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   20.331541][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.331544][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.331548][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.331552][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.331554][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.331559][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.331562][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.331566][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.331570][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.331574][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.331579][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.331581][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.331585][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.331589][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.331592][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.331597][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.331600][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.331602][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.331604][  T200]  ? 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))
[   20.331608][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.331610][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.331613][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.331617][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.331621][  T200]  ? _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)
[   20.331627][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   20.331631][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   20.331635][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   20.331637][  T200]  ? idr_get_free (??:?)
[   20.331640][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   20.331644][  T200]  ? _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)
[   20.331646][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   20.331649][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.331654][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.331657][  T200]  new_sync_write (fs/read_write.c:595)
[   20.331661][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   20.331665][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.331670][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   20.331674][  T200]  vfs_write (fs/read_write.c:687)
[   20.331678][  T200]  ksys_write (fs/read_write.c:739)
[   20.331681][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   20.331684][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.331688][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.331691][  T200]  ? irq_exit_rcu (kernel/softirq.c:786)
[   20.331695][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.331697][  T200] RIP: 0033:0x7f654cd17312
[   20.331702][  T200] 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)
[   20.331704][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.331707][  T200] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f654cd17312
[   20.331708][  T200] RDX: 0000000000000316 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   20.331709][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   20.331710][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   20.331711][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   21.339718][  T200] softirqs last disabled at (609649): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.339721][  T200] Preemption disabled at:
| [   21.339722][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.339733][  T200] Tainted: [W]=WARN
[   21.339734][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.339735][  T200] Call Trace:
[   21.339737][  T200]  <TASK>
[   21.339739][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.339745][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.339747][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.339752][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.339756][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.339762][  T200]  __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))
[   21.339765][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.339771][  T200]  ? 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)
[   21.339775][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.339778][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   21.339782][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.339784][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   21.339788][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.339791][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.339795][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.339799][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.339801][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.339806][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.339810][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.339813][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.339817][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.339821][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.339826][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.339828][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.339833][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.339837][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.339839][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.339844][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.339847][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.339849][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.339851][  T200]  ? 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))
[   21.339855][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.339857][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.339861][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.339864][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.339868][  T200]  ? _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)
[   21.339874][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   21.339877][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   21.339881][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   21.339883][  T200]  ? idr_get_free (??:?)
[   21.339887][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   21.339891][  T200]  ? _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)
[   21.339893][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   21.339896][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.339901][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.339905][  T200]  new_sync_write (fs/read_write.c:595)
[   21.339910][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   21.339914][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.339919][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   21.339922][  T200]  vfs_write (fs/read_write.c:687)
[   21.339927][  T200]  ksys_write (fs/read_write.c:739)
[   21.339930][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   21.339933][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.339936][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.339939][  T200]  ? irq_exit_rcu (kernel/softirq.c:786)
[   21.339942][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.339945][  T200] RIP: 0033:0x7f654cd17312
[   21.339949][  T200] 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)
[   21.339951][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   21.339954][  T200] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f654cd17312
[   21.339956][  T200] RDX: 0000000000000316 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   21.339957][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   21.339958][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   21.339959][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   22.862646][  T200] softirqs last disabled at (748035): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   22.862648][  T200] Preemption disabled at:
| [   22.862649][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.862659][  T200] Tainted: [W]=WARN
[   22.862660][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.862662][  T200] Call Trace:
[   22.862663][  T200]  <TASK>
[   22.862665][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.862671][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.862674][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.862678][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.862683][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.862688][  T200]  __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))
[   22.862691][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.862698][  T200]  ? 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)
[   22.862701][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.862704][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   22.862708][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.862710][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   22.862714][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.862717][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.862721][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.862725][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.862727][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.862731][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.862735][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.862739][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.862743][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.862747][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.862752][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.862754][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.862758][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.862762][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.862764][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.862770][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.862773][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.862775][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.862777][  T200]  ? 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))
[   22.862781][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.862783][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.862786][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.862790][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.862793][  T200]  ? _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)
[   22.862799][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   22.862804][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   22.862808][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   22.862810][  T200]  ? idr_get_free (??:?)
[   22.862814][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   22.862817][  T200]  ? _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)
[   22.862820][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   22.862822][  T200]  ? net_rx_action (net/core/dev.c:7988)
[   22.862826][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.862830][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.862833][  T200]  new_sync_write (fs/read_write.c:595)
[   22.862836][  T200]  ? validate_chain (kernel/locking/lockdep.c:159 (discriminator 37) kernel/locking/lockdep.c:191 (discriminator 37) kernel/locking/lockdep.c:3928 (discriminator 37))
[   22.862839][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   22.862843][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.862848][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   22.862852][  T200]  vfs_write (fs/read_write.c:687)
[   22.862856][  T200]  ksys_write (fs/read_write.c:739)
[   22.862859][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   22.862861][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.862864][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.862868][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.862871][  T200]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   22.862874][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.862877][  T200] RIP: 0033:0x7f654cd17312
[   22.862881][  T200] 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)
[   22.862883][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   22.862886][  T200] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f654cd17312
[   22.862888][  T200] RDX: 0000000000000316 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   22.862889][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   22.862890][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   22.862891][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   24.205368][  T200] softirqs last disabled at (881653): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   24.205372][  T200] Preemption disabled at:
| [   24.205373][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.205384][  T200] Tainted: [W]=WARN
[   24.205385][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.205387][  T200] Call Trace:
[   24.205389][  T200]  <TASK>
[   24.205391][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.205398][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.205400][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.205405][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.205409][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.205415][  T200]  __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))
[   24.205419][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.205426][  T200]  ? 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)
[   24.205429][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.205433][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   24.205437][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.205439][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   24.205443][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.205447][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.205451][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.205455][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.205457][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.205462][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.205468][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.205472][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.205476][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.205481][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.205486][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.205488][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.205493][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.205497][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.205499][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.205505][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.205508][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.205510][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.205513][  T200]  ? 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))
[   24.205517][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.205519][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.205523][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.205527][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.205529][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.205532][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.205533][  T200]  ? enabled_store (./include/linux/console.h:573 drivers/net/netconsole.c:1037) netconsole
[   24.205536][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.205541][  T200]  _printk (kernel/printk/printk.c:2504)
[   24.205545][  T200]  ? snapshot_read.cold (user.c:?)
[   24.205548][  T200]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   24.205552][  T200]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   24.205557][  T200]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   24.205560][  T200] netconsole_print_banner (drivers/net/netconsole.c:729 (discriminator 1)) netconsole
[   24.205565][  T200] enabled_store.cold (drivers/net/netconsole.c:1054) netconsole
[   24.205568][  T200]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.205572][  T200]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   24.205575][  T200]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   24.205577][  T200]  ? __kmalloc_cache_noprof (mm/slub.c:5561 (discriminator 1))
[   24.205580][  T200]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   24.205584][  T200]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   24.205586][  T200]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   24.205589][  T200]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   24.205592][  T200]  new_sync_write (fs/read_write.c:595)
[   24.205595][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.205598][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   24.205601][  T200]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.205603][  T200]  ? ksys_write (fs/read_write.c:739)
[   24.205610][  T200]  vfs_write (fs/read_write.c:687)
[   24.205614][  T200]  ksys_write (fs/read_write.c:739)
[   24.205617][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   24.205620][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.205624][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.205627][  T200]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 18))
[   24.205630][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.205633][  T200] RIP: 0033:0x7f654cd17312
[   24.205637][  T200] 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)
[   24.205639][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   24.205642][  T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f654cd17312
[   24.205643][  T200] RDX: 0000000000000001 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   24.205645][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   24.205645][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390
[   24.205646][  T200] R13: 0000561b30e932b0 R14: 0000000000000009 R15: 00007f654cb110d0
| [   25.315553][  T200] softirqs last disabled at (970881): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   25.315556][  T200] Preemption disabled at:
| [   25.315557][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.315568][  T200] Tainted: [W]=WARN
[   25.315569][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.315570][  T200] Call Trace:
[   25.315572][  T200]  <TASK>
[   25.315574][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.315580][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.315583][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.315587][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.315591][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.315597][  T200]  __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))
[   25.315600][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.315606][  T200]  ? 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)
[   25.315609][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.315613][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   25.315617][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.315620][  T200]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   25.315623][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.315626][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.315631][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.315635][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.315636][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.315641][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.315645][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.315649][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.315653][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.315657][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.315662][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.315664][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.315668][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.315673][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.315675][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.315680][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.315683][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.315685][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.315688][  T200]  ? 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))
[   25.315692][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.315694][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.315697][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.315701][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.315705][  T200]  ? _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)
[   25.315711][  T200]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   25.315715][  T200]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   25.315719][  T200]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   25.315721][  T200]  ? idr_get_free (??:?)
[   25.315725][  T200]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   25.315728][  T200]  ? _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)
[   25.315731][  T200]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   25.315734][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   25.315739][  T200]  ? vprintk_default (kernel/printk/printk.c:2494)
[   25.315741][  T200]  new_sync_write (fs/read_write.c:595)
[   25.315746][  T200]  ? new_sync_read (./include/linux/ioprio.h:41)
[   25.315750][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.315755][  T200]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   25.315759][  T200]  vfs_write (fs/read_write.c:687)
[   25.315763][  T200]  ksys_write (fs/read_write.c:739)
[   25.315766][  T200]  ? __ia32_sys_read (fs/read_write.c:723)
[   25.315769][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.315773][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.315776][  T200]  ? irq_exit_rcu (kernel/softirq.c:786)
[   25.315779][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.315781][  T200] RIP: 0033:0x7f654cd17312
[   25.315786][  T200] 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)
[   25.315788][  T200] RSP: 002b:00007ffde017c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   25.315792][  T200] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f654cd17312
[   25.315793][  T200] RDX: 0000000000000316 RSI: 0000561b30e932b0 RDI: 0000000000000009
[   25.315794][  T200] RBP: 00007ffde017c0c0 R08: 0000000000000000 R09: 0000000000000000
[   25.315795][  T200] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f654cb84390


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