======================================
| [   10.536130][  T176] softirqs last disabled at (35433): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.536134][  T176] Preemption disabled at:
| [   10.536134][  T176] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.536146][  T176] Tainted: [W]=WARN
[   10.536147][  T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.536150][  T176] Call Trace:
[   10.536152][  T176]  <TASK>
[   10.536154][  T176]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.536161][  T176]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.536164][  T176]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.536170][  T176]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.536175][  T176]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.536184][  T176]  __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))
[   10.536187][  T176]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.536197][  T176]  ? 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)
[   10.536200][  T176]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.536206][  T176]  put_chars (drivers/char/virtio_console.c:1176)
[   10.536211][  T176]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.536216][  T176]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.536225][  T176]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.536236][  T176]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.536240][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.536245][  T176]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.536252][  T176]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.536258][  T176]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.536265][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.536268][  T176]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.536275][  T176]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.536282][  T176]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.536285][  T176]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.536294][  T176]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.536298][  T176]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.536301][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.536304][  T176]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.536310][  T176]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.536313][  T176]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.536318][  T176]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.536324][  T176]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.536326][  T176]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.536331][  T176]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.536333][  T176]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   10.536339][  T176]  ? 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
[   10.536345][  T176]  _printk (kernel/printk/printk.c:2504)
[   10.536350][  T176]  ? snapshot_read.cold (user.c:?)
[   10.536355][  T176]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   10.536359][  T176]  ? 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
[   10.536368][  T176]  ? 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)
[   10.536375][  T176] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   10.536380][  T176]  ? 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
[   10.536392][  T176]  ? 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
[   10.536397][  T176]  do_one_initcall (init/main.c:1357)
[   10.536401][  T176]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.536409][  T176]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.536412][  T176]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.536420][  T176]  do_init_module (kernel/module/main.c:3117)
[   10.536425][  T176]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.536431][  T176]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.536435][  T176]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.536442][  T176]  load_module (kernel/module/main.c:3593)
[   10.536454][  T176]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.536460][  T176]  ? __ia32_sys_fsconfig (??:?)
[   10.536464][  T176]  ? add_chain_cache (kernel/locking/lockdep.c:3782)
[   10.536473][  T176]  init_module_from_file (kernel/module/main.c:3790)
[   10.536477][  T176]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.536491][  T176]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.536497][  T176]  ? 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)
[   10.536502][  T176]  idempotent_init_module (kernel/module/main.c:3802)
[   10.536507][  T176]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.536517][  T176]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.536520][  T176]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.536529][  T176]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.536531][  T176]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.536537][  T176]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.536540][  T176]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.536545][  T176]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.536548][  T176] RIP: 0033:0x7f693d90237d
[   10.536553][  T176] 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
[   10.536555][  T176] RSP: 002b:00007ffca8145e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.536558][  T176] RAX: ffffffffffffffda RBX: 000055fa829a6700 RCX: 00007f693d90237d
[   10.536560][  T176] RDX: 0000000000000000 RSI: 000055fa5ce4dffd RDI: 0000000000000005
[   10.536561][  T176] RBP: 00007ffca8145ef0 R08: 0000000000000000 R09: 0000000000000000
[   10.536562][  T176] R10: 0000000000000000 R11: 0000000000000246 R12: 000055fa5ce4dffd
[   10.536564][  T176] R13: 000055fa829a6810 R14: 0000000000040000 R15: 0000000000000000
| [   12.151644][  T175] softirqs last disabled at (388438): fpu_clone (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:710 (discriminator 2))
| [   12.151647][  T175] Preemption disabled at:
| [   12.151648][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.151657][  T175] Tainted: [W]=WARN
[   12.151658][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.151660][  T175] Call Trace:
[   12.151661][  T175]  <TASK>
[   12.151664][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.151669][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.151671][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.151676][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.151680][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.151686][  T175]  __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))
[   12.151688][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.151695][  T175]  ? 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)
[   12.151698][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.151703][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   12.151707][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.151709][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.151714][  T175]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.151718][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.151722][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.151724][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.151729][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.151741][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.151744][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.151748][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.151753][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.151758][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.151760][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.151764][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.151769][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.151771][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.151777][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.151780][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.151782][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.151784][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.151788][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.151790][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.151793][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.151797][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.151798][  T175]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   12.151800][  T175]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[   12.151804][  T175]  ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167)
[   12.151805][  T175]  ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4527)
[   12.151807][  T175]  ? common_interrupt (arch/x86/kernel/irq.c:273 (discriminator 39))
[   12.151811][  T175]  _printk (kernel/printk/printk.c:2504)
[   12.151816][  T175]  ? snapshot_read.cold (user.c:?)
[   12.151817][  T175]  ? preempt_schedule_common (kernel/sched/core.c:7449)
[   12.151821][  T175]  ? preempt_schedule_thunk (arch/x86/entry/thunk.S:12)
[   12.151828][  T175]  register_console (kernel/printk/printk.c:4212 (discriminator 7))
[   12.151832][  T175]  ? get_init_console_seq.constprop.0.isra.0 (kernel/printk/printk.c:4018)
[   12.151834][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.151839][  T175] enabled_store (drivers/net/netconsole.c:1039) netconsole
[   12.151841][  T175]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.151845][  T175]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.151848][  T175]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   12.151850][  T175]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   12.151853][  T175]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   12.151857][  T175]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   12.151859][  T175]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   12.151862][  T175]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   12.151864][  T175]  new_sync_write (fs/read_write.c:595)
[   12.151868][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.151871][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.151875][  T175]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.151877][  T175]  ? ksys_write (fs/read_write.c:739)
[   12.151884][  T175]  vfs_write (fs/read_write.c:687)
[   12.151888][  T175]  ksys_write (fs/read_write.c:739)
[   12.151890][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.151893][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.151897][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.151899][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   12.151904][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.151906][  T175] RIP: 0033:0x7f8bf4a9c312
[   12.151910][  T175] 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)
[   12.151912][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   12.151915][  T175] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8bf4a9c312
[   12.151917][  T175] RDX: 0000000000000001 RSI: 0000559b40e44f10 RDI: 0000000000000010
[   12.151918][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   12.151919][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   12.151920][  T175] R13: 0000559b40e44f10 R14: 0000000000000010 R15: 00007f8bf48950d0
| [   13.159247][  T175] softirqs last disabled at (409941): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.159250][  T175] Preemption disabled at:
| [   13.159251][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.159260][  T175] Tainted: [W]=WARN
[   13.159261][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.159263][  T175] Call Trace:
[   13.159265][  T175]  <TASK>
[   13.159267][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.159273][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.159275][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.159280][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.159284][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.159290][  T175]  __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))
[   13.159293][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.159300][  T175]  ? 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)
[   13.159303][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.159307][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   13.159310][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.159312][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.159316][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.159320][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.159325][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.159329][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.159331][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.159336][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.159340][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.159342][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.159347][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.159351][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.159356][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.159358][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.159366][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.159370][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.159373][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.159378][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.159381][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.159384][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.159386][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.159390][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.159392][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.159395][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.159398][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.159401][  T175]  ? _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)
[   13.159407][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.159411][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.159415][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.159418][  T175]  ? idr_get_free (??:?)
[   13.159420][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.159423][  T175]  ? _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)
[   13.159426][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.159429][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.159431][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   13.159435][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.159439][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.159441][  T175]  new_sync_write (fs/read_write.c:595)
[   13.159446][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.159451][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.159456][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   13.159460][  T175]  vfs_write (fs/read_write.c:687)
[   13.159464][  T175]  ksys_write (fs/read_write.c:739)
[   13.159467][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.159470][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.159473][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.159476][  T175]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.159479][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.159481][  T175] RIP: 0033:0x7f8bf4a9c312
[   13.159486][  T175] 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)
[   13.159488][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.159491][  T175] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f8bf4a9c312
[   13.159493][  T175] RDX: 00000000000002ee RSI: 0000559b40e44f10 RDI: 000000000000000b
[   13.159494][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   13.159495][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   13.159496][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   14.558569][  T175] softirqs last disabled at (443547): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.558572][  T175] Preemption disabled at:
| [   14.558573][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.558582][  T175] Tainted: [W]=WARN
[   14.558583][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.558585][  T175] Call Trace:
[   14.558587][  T175]  <TASK>
[   14.558589][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.558595][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.558597][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.558601][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.558606][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.558612][  T175]  __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))
[   14.558614][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.558621][  T175]  ? 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)
[   14.558624][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.558628][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   14.558631][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.558633][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.558637][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.558640][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.558645][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.558648][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.558650][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.558655][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.558659][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.558661][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.558665][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.558669][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.558674][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.558676][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.558680][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.558685][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.558687][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.558692][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.558695][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.558698][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.558700][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.558704][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.558706][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.558709][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.558713][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.558715][  T175]  ? _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)
[   14.558721][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.558725][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.558729][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.558731][  T175]  ? idr_get_free (??:?)
[   14.558735][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.558738][  T175]  ? _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)
[   14.558747][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.558750][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.558752][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   14.558755][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.558758][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.558760][  T175]  new_sync_write (fs/read_write.c:595)
[   14.558766][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.558770][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.558775][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   14.558779][  T175]  vfs_write (fs/read_write.c:687)
[   14.558783][  T175]  ksys_write (fs/read_write.c:739)
[   14.558786][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.558788][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.558792][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.558795][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   14.558797][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.558800][  T175] RIP: 0033:0x7f8bf4a9c312
[   14.558804][  T175] 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)
[   14.558806][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.558809][  T175] RAX: ffffffffffffffda RBX: 00000000000002ee RCX: 00007f8bf4a9c312
[   14.558810][  T175] RDX: 00000000000002ee RSI: 0000559b40e44f10 RDI: 000000000000000b
[   14.558811][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   14.558812][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   14.558813][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   15.558956][  T175] softirqs last disabled at (469671): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   15.558959][  T175] Preemption disabled at:
| [   15.558960][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.558969][  T175] Tainted: [W]=WARN
[   15.558970][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.558972][  T175] Call Trace:
[   15.558973][  T175]  <TASK>
[   15.558975][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.558981][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.558983][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.558988][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.558993][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.558998][  T175]  __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))
[   15.559001][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.559007][  T175]  ? 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)
[   15.559010][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.559014][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   15.559017][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.559019][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.559023][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.559027][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.559031][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.559035][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.559037][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.559042][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.559045][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.559048][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.559052][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.559056][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.559061][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.559063][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.559067][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.559072][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.559074][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.559080][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.559083][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.559085][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.559087][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.559091][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.559092][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.559095][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.559099][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.559101][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.559103][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.559104][  T175]  ? enabled_store (./include/linux/console.h:573 drivers/net/netconsole.c:1037) netconsole
[   15.559107][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.559111][  T175]  _printk (kernel/printk/printk.c:2504)
[   15.559115][  T175]  ? snapshot_read.cold (user.c:?)
[   15.559118][  T175]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   15.559122][  T175]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   15.559127][  T175]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   15.559130][  T175] netconsole_print_banner (drivers/net/netconsole.c:729 (discriminator 1)) netconsole
[   15.559135][  T175] enabled_store.cold (drivers/net/netconsole.c:1054) netconsole
[   15.559137][  T175]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   15.559141][  T175]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   15.559143][  T175]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   15.559145][  T175]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   15.559148][  T175]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   15.559152][  T175]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   15.559154][  T175]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   15.559157][  T175]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   15.559159][  T175]  new_sync_write (fs/read_write.c:595)
[   15.559163][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.559166][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.559170][  T175]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.559172][  T175]  ? ksys_write (fs/read_write.c:739)
[   15.559178][  T175]  vfs_write (fs/read_write.c:687)
[   15.559182][  T175]  ksys_write (fs/read_write.c:739)
[   15.559185][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.559188][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.559191][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.559194][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   15.559197][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.559199][  T175] RIP: 0033:0x7f8bf4a9c312
[   15.559203][  T175] 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)
[   15.559205][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   15.559208][  T175] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8bf4a9c312
[   15.559210][  T175] RDX: 0000000000000001 RSI: 0000559b40e44f10 RDI: 000000000000000b
[   15.559211][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   15.559212][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   15.559213][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   16.673603][  T175] softirqs last disabled at (529973): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.673607][  T175] Preemption disabled at:
| [   16.673608][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.673620][  T175] Tainted: [W]=WARN
[   16.673622][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.673625][  T175] Call Trace:
[   16.673627][  T175]  <TASK>
[   16.673630][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.673638][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.673641][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.673648][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.673654][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.673662][  T175]  __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))
[   16.673666][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.673676][  T175]  ? 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)
[   16.673680][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.673687][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   16.673692][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.673695][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   16.673702][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.673708][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.673716][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.673721][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.673724][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.673733][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.673740][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.673743][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.673757][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.673765][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.673773][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.673777][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.673785][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.673792][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.673795][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.673805][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.673810][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.673814][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.673817][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.673824][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.673827][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.673832][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.673838][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.673841][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.673844][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.673847][  T175]  ? enabled_store (./include/linux/console.h:573 drivers/net/netconsole.c:1037) netconsole
[   16.673852][  T175]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.673859][  T175]  _printk (kernel/printk/printk.c:2504)
[   16.673865][  T175]  ? snapshot_read.cold (user.c:?)
[   16.673870][  T175]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 kernel/locking/mutex.c:999)
[   16.673876][  T175]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   16.673885][  T175]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   16.673890][  T175] netconsole_print_banner (drivers/net/netconsole.c:729 (discriminator 1)) netconsole
[   16.673898][  T175] enabled_store.cold (drivers/net/netconsole.c:1054) netconsole
[   16.673902][  T175]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.673908][  T175]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   16.673912][  T175]  ? down_write_killable_nested (./arch/x86/include/asm/atomic64_64.h:20)
[   16.673915][  T175]  ? __kmalloc_cache_noprof (mm/slub.c:4986 (discriminator 1) mm/slub.c:5559 (discriminator 1))
[   16.673920][  T175]  ? configfs_write_iter (./include/linux/slab.h:991 (discriminator 1) fs/configfs/file.c:187 (discriminator 1) fs/configfs/file.c:227 (discriminator 1))
[   16.673927][  T175]  ? netconsole_write_ext (drivers/net/netconsole.c:2504) netconsole
[   16.673931][  T175]  configfs_write_iter (fs/configfs/file.c:207 fs/configfs/file.c:229)
[   16.673936][  T175]  ? configfs_bin_write_iter (fs/configfs/file.c:287 (discriminator 1))
[   16.673940][  T175]  new_sync_write (fs/read_write.c:595)
[   16.673946][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.673951][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   16.673957][  T175]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.673961][  T175]  ? ksys_write (fs/read_write.c:739)
[   16.673973][  T175]  vfs_write (fs/read_write.c:687)
[   16.673981][  T175]  ksys_write (fs/read_write.c:739)
[   16.673985][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   16.673991][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.673997][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.674001][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   16.674006][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.674010][  T175] RIP: 0033:0x7f8bf4a9c312
[   16.674015][  T175] 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)
[   16.674018][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   16.674022][  T175] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f8bf4a9c312
[   16.674024][  T175] RDX: 0000000000000001 RSI: 0000559b40e44f10 RDI: 000000000000000b
[   16.674026][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   16.674027][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   16.674029][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   17.928030][  T175] softirqs last disabled at (659599): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.928033][  T175] Preemption disabled at:
| [   17.928033][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.928043][  T175] Tainted: [W]=WARN
[   17.928044][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.928046][  T175] Call Trace:
[   17.928048][  T175]  <TASK>
[   17.928050][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.928056][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.928058][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.928062][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.928067][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.928073][  T175]  __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))
[   17.928075][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.928082][  T175]  ? 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)
[   17.928085][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.928089][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   17.928092][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.928094][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.928098][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.928102][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.928107][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.928110][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.928112][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.928117][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.928121][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.928123][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.928127][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.928131][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.928136][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.928138][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.928142][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.928146][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.928148][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.928154][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.928157][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.928159][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.928161][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.928165][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.928167][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.928170][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.928173][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.928176][  T175]  ? _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)
[   17.928181][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.928185][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.928189][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.928191][  T175]  ? idr_get_free (??:?)
[   17.928195][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.928198][  T175]  ? _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)
[   17.928200][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.928203][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.928205][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   17.928209][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.928212][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.928214][  T175]  new_sync_write (fs/read_write.c:595)
[   17.928219][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.928224][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.928229][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   17.928232][  T175]  vfs_write (fs/read_write.c:687)
[   17.928236][  T175]  ksys_write (fs/read_write.c:739)
[   17.928239][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.928242][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.928245][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.928248][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   17.928251][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.928253][  T175] RIP: 0033:0x7f8bf4a9c312
[   17.928258][  T175] 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)
[   17.928260][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   17.928263][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f8bf4a9c312
[   17.928264][  T175] RDX: 0000000000000316 RSI: 0000559b40e44f10 RDI: 000000000000000b
[   17.928265][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   17.928266][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   17.928267][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   18.928753][  T175] softirqs last disabled at (694035): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   18.928760][  T175] Preemption disabled at:
| [   18.928761][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.928771][  T175] Tainted: [W]=WARN
[   18.928772][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.928774][  T175] Call Trace:
[   18.928776][  T175]  <TASK>
[   18.928778][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.928784][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.928786][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.928791][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.928795][  T175]  ? kmem_cache_alloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5010)
[   18.928801][  T175]  kmem_cache_alloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5010 (discriminator 2))
[   18.928803][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.928806][  T175]  ? __alloc_object (mm/kmemleak.c:504 (discriminator 1) mm/kmemleak.c:686 (discriminator 1))
[   18.928812][  T175]  __alloc_object (mm/kmemleak.c:504 (discriminator 1) mm/kmemleak.c:686 (discriminator 1))
[   18.928814][  T175]  ? kasan_quarantine_reduce (./include/linux/srcu.h:498 mm/kasan/quarantine.c:287)
[   18.928817][  T175]  __create_object (mm/kmemleak.c:801)
[   18.928821][  T175]  __kmalloc_noprof (./include/linux/kmemleak.h:44 mm/slub.c:4696 mm/slub.c:4996 mm/slub.c:5413 mm/slub.c:5439)
[   18.928823][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.928830][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.928834][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   18.928837][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.928839][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   18.928842][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.928846][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.928851][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.928854][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.928856][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.928861][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.928864][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.928867][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.928871][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.928875][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.928880][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.928881][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.928886][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.928890][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.928892][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.928898][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.928901][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.928903][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.928905][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.928909][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.928911][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.928914][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.928917][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.928919][  T175]  ? _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)
[   18.928925][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   18.928929][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   18.928933][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   18.928935][  T175]  ? idr_get_free (??:?)
[   18.928939][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   18.928941][  T175]  ? _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)
[   18.928944][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   18.928947][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.928949][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   18.928953][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.928956][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.928958][  T175]  new_sync_write (fs/read_write.c:595)
[   18.928962][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   18.928967][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.928972][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   18.928976][  T175]  vfs_write (fs/read_write.c:687)
[   18.928980][  T175]  ksys_write (fs/read_write.c:739)
[   18.928982][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   18.928985][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.928988][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.928991][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   18.928994][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.928997][  T175] RIP: 0033:0x7f8bf4a9c312
[   18.929001][  T175] 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)
[   18.929003][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   18.929006][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f8bf4a9c312
[   18.929008][  T175] RDX: 0000000000000316 RSI: 0000559b40e44f10 RDI: 000000000000000b
[   18.929009][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   18.929010][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   18.929011][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   20.058642][  T175] softirqs last disabled at (718683): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   20.058646][  T175] Preemption disabled at:
| [   20.058647][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.058660][  T175] Tainted: [W]=WARN
[   20.058661][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.058664][  T175] Call Trace:
[   20.058666][  T175]  <TASK>
[   20.058669][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.058676][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.058679][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.058686][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.058691][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.058700][  T175]  __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))
[   20.058704][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.058713][  T175]  ? 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)
[   20.058717][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.058723][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   20.058727][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.058731][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   20.058736][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.058741][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.058748][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.058753][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.058756][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.058769][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.058775][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.058778][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.058785][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.058791][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.058799][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.058802][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.058808][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.058815][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.058818][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.058826][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.058830][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.058833][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.058836][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.058842][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.058845][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.058849][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.058854][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.058859][  T175]  ? _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)
[   20.058867][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   20.058873][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   20.058879][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   20.058882][  T175]  ? idr_get_free (??:?)
[   20.058887][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   20.058892][  T175]  ? _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)
[   20.058895][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   20.058900][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.058903][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   20.058908][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.058912][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   20.058916][  T175]  new_sync_write (fs/read_write.c:595)
[   20.058924][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   20.058931][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.058939][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   20.058945][  T175]  vfs_write (fs/read_write.c:687)
[   20.058951][  T175]  ksys_write (fs/read_write.c:739)
[   20.058955][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   20.058960][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.058965][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.058969][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   20.058973][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.058977][  T175] RIP: 0033:0x7f8bf4a9c312
[   20.058983][  T175] 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)
[   20.058986][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   20.058989][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f8bf4a9c312
[   20.058991][  T175] RDX: 0000000000000316 RSI: 0000559b40e44f10 RDI: 000000000000000b
[   20.058992][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   20.058993][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390
[   20.058994][  T175] R13: 0000559b40e44f10 R14: 000000000000000b R15: 00007f8bf48950d0
| [   21.058421][  T175] softirqs last disabled at (743131): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.058424][  T175] Preemption disabled at:
| [   21.058425][  T175] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.058435][  T175] Tainted: [W]=WARN
[   21.058436][  T175] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.058438][  T175] Call Trace:
[   21.058439][  T175]  <TASK>
[   21.058441][  T175]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.058447][  T175]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.058449][  T175]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.058454][  T175]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.058458][  T175]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.058464][  T175]  __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))
[   21.058467][  T175]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.058474][  T175]  ? 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)
[   21.058477][  T175]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.058480][  T175]  put_chars (drivers/char/virtio_console.c:1176)
[   21.058483][  T175]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.058485][  T175]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   21.058489][  T175]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.058493][  T175]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.058498][  T175]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.058501][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.058503][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.058507][  T175]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.058511][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.058513][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.058518][  T175]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.058522][  T175]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.058526][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.058528][  T175]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.058532][  T175]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.058537][  T175]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.058539][  T175]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.058545][  T175]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.058548][  T175]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.058550][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.058552][  T175]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.058555][  T175]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.058557][  T175]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.058560][  T175]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.058564][  T175]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.058566][  T175]  ? _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)
[   21.058572][  T175]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   21.058575][  T175]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   21.058579][  T175]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   21.058582][  T175]  ? idr_get_free (??:?)
[   21.058585][  T175]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   21.058588][  T175]  ? _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)
[   21.058591][  T175]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   21.058594][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.058596][  T175]  ? cp_old_stat (fs/stat.c:406 (discriminator 3))
[   21.058599][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.058602][  T175]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.058604][  T175]  new_sync_write (fs/read_write.c:595)
[   21.058610][  T175]  ? new_sync_read (./include/linux/ioprio.h:41)
[   21.058614][  T175]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.058619][  T175]  ? __fget_files (./include/linux/rcupdate.h:882 fs/file.c:1100)
[   21.058624][  T175]  vfs_write (fs/read_write.c:687)
[   21.058628][  T175]  ksys_write (fs/read_write.c:739)
[   21.058631][  T175]  ? __ia32_sys_read (fs/read_write.c:723)
[   21.058633][  T175]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.058637][  T175]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.058640][  T175]  ? irq_exit_rcu (kernel/softirq.c:786)
[   21.058642][  T175]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.058645][  T175] RIP: 0033:0x7f8bf4a9c312
[   21.058649][  T175] 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)
[   21.058651][  T175] RSP: 002b:00007fff6bdbea78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   21.058654][  T175] RAX: ffffffffffffffda RBX: 0000000000000316 RCX: 00007f8bf4a9c312
[   21.058656][  T175] RDX: 0000000000000316 RSI: 0000559b40e44f10 RDI: 000000000000000b
[   21.058657][  T175] RBP: 00007fff6bdbeaa0 R08: 0000000000000000 R09: 0000000000000000
[   21.058658][  T175] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bf4909390


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:kmem_cache_alloc_noprof:__alloc_object
fpu_clone:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars