======================================
| [    8.793647][  T170] softirqs last disabled at (22151): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.793650][  T170] Preemption disabled at:
| [    8.793651][  T170] 0x0
| [    8.793660][  T170] Tainted: [W]=WARN
[    8.793661][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.793663][  T170] Call Trace:
[    8.793664][  T170]  <TASK>
[    8.793666][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.793672][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.793676][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.793680][  T170]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    8.793685][  T170]  __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))
[    8.793686][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.793692][  T170]  ? 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)
[    8.793694][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.793697][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[    8.793700][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.793702][  T170]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[    8.793705][  T170]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.793707][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.793712][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.793715][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.793716][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.793720][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.793723][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.793726][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.793729][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.793733][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.793737][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.793739][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.793742][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.793746][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.793747][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.793752][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.793755][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.793756][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.793758][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.793761][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.793763][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.793766][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.793769][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.793772][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.793775][  T170]  _printk (kernel/printk/printk.c:2504)
[    8.793779][  T170]  ? snapshot_read.cold (user.c:?)
[    8.793782][  T170]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    8.793784][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.793787][  T170]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    8.793790][  T170]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    8.793793][  T170]  ? exit_notify (kernel/exit.c:780)
[    8.793795][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.793797][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.793801][  T170]  do_group_exit (kernel/exit.c:1151)
[    8.793805][  T170]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    8.793807][  T170]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    8.793809][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.793812][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.793815][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.793817][  T170] RIP: 0033:0x7f13f08071b8
[    8.793819][  T170] Code: Unable to access opcode bytes at 0x7f13f080718e.

Code starting with the faulting instruction
===========================================
[    8.793821][  T170] RSP: 002b:00007ffcdcb38178 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    8.793823][  T170] RAX: ffffffffffffffda RBX: 00007f13f0937f88 RCX: 00007f13f08071b8
[    8.793824][  T170] RDX: 00007f13f0745ec8 RSI: ffffffffffffffa8 RDI: 0000000000000001
[    8.793825][  T170] RBP: 00007ffcdcb381d0 R08: 0000000000000000 R09: 00000000000000a0
[    8.793826][  T170] R10: 00007ffcdcb37fd0 R11: 0000000000000246 R12: 0000000000000001
[    8.793826][  T170] R13: 0000000000000001 R14: 00007f13f0936680 R15: 00007f13f0937fa0
| [   10.985568][  T158] softirqs last disabled at (180292): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   10.985571][  T158] Preemption disabled at:
| [   10.985571][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.985580][  T158] Tainted: [W]=WARN
[   10.985581][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.985583][  T158] Call Trace:
[   10.985585][  T158]  <TASK>
[   10.985587][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.985592][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.985594][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.985598][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.985602][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.985607][  T158]  __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))
[   10.985609][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.985614][  T158]  ? 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)
[   10.985617][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.985620][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   10.985623][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.985624][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   10.985627][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.985630][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.985634][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.985637][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.985638][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.985642][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.985645][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985648][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.985652][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.985656][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.985660][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985662][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.985665][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.985669][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.985671][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.985675][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.985678][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.985680][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985682][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.985685][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.985687][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.985690][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.985693][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.985696][  T158]  ? _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)
[   10.985701][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   10.985705][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   10.985709][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   10.985711][  T158]  ? idr_get_free (??:?)
[   10.985715][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   10.985718][  T158]  ? _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)
[   10.985720][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   10.985723][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.985725][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.985727][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   10.985763][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.985766][  T158]  new_sync_write (fs/read_write.c:595)
[   10.985771][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.985772][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.985780][  T158]  vfs_write (fs/read_write.c:687)
[   10.985784][  T158]  ksys_write (fs/read_write.c:739)
[   10.985787][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   10.985788][  T158]  ? 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)
[   10.985791][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.985794][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.985797][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.985800][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.985802][  T158] RIP: 0033:0x7f026d4aa54e
[   10.985806][  T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.985808][  T158] RSP: 002b:00007ffd6ae9c250 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.985811][  T158] RAX: ffffffffffffffda RBX: 00007f026d62b580 RCX: 00007f026d4aa54e
[   10.985812][  T158] RDX: 0000000000000023 RSI: 000055a5901a9d20 RDI: 0000000000000001
[   10.985813][  T158] RBP: 00007ffd6ae9c260 R08: 0000000000000000 R09: 0000000000000000
[   10.985814][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   10.985815][  T158] R13: 0000000000000023 R14: 000055a5901a9d20 R15: 0000000000000000
| [   13.917328][  T158] softirqs last disabled at (369500): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   13.917331][  T158] Preemption disabled at:
| [   13.917331][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.917340][  T158] Tainted: [W]=WARN
[   13.917341][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.917343][  T158] Call Trace:
[   13.917344][  T158]  <TASK>
[   13.917346][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.917351][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.917353][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.917358][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.917362][  T158]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.917366][  T158]  __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))
[   13.917368][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.917374][  T158]  ? 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)
[   13.917377][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.917380][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   13.917383][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.917384][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.917388][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.917390][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.917395][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.917397][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.917399][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.917403][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.917406][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.917409][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.917413][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.917416][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.917421][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.917423][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.917426][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.917430][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.917432][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.917437][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.917440][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.917441][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.917443][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.917447][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.917448][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.917451][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.917455][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.917458][  T158]  ? _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)
[   13.917463][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.917467][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.917471][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.917473][  T158]  ? idr_get_free (??:?)
[   13.917477][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.917480][  T158]  ? _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)
[   13.917483][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.917486][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.917487][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.917490][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   13.917494][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.917496][  T158]  new_sync_write (fs/read_write.c:595)
[   13.917501][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.917503][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.917511][  T158]  vfs_write (fs/read_write.c:687)
[   13.917515][  T158]  ksys_write (fs/read_write.c:739)
[   13.917518][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.917519][  T158]  ? 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)
[   13.917522][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.917525][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.917528][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.917531][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.917533][  T158] RIP: 0033:0x7f026d4aa54e
[   13.917537][  T158] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.917539][  T158] RSP: 002b:00007ffd6ae9c250 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.917542][  T158] RAX: ffffffffffffffda RBX: 00007f026d62b580 RCX: 00007f026d4aa54e
[   13.917543][  T158] RDX: 0000000000000023 RSI: 000055a5901a9d20 RDI: 0000000000000001
[   13.917545][  T158] RBP: 00007ffd6ae9c260 R08: 0000000000000000 R09: 0000000000000000
[   13.917546][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023


Finger prints:
restore_fpregs_from_user:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print