======================================
| [    8.898876][  T171] softirqs last disabled at (18727): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.898879][  T171] Preemption disabled at:
| [    8.898879][  T171] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.898888][  T171] Tainted: [W]=WARN
[    8.898889][  T171] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.898890][  T171] Call Trace:
[    8.898892][  T171]  <TASK>
[    8.898893][  T171]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.898899][  T171]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.898901][  T171]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.898905][  T171]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.898909][  T171]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    8.898914][  T171]  __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))
[    8.898916][  T171]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.898922][  T171]  ? 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)
[    8.898924][  T171]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.898927][  T171]  put_chars (drivers/char/virtio_console.c:1176)
[    8.898930][  T171]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.898934][  T171]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.898939][  T171]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.898945][  T171]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.898947][  T171]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.898951][  T171]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.898954][  T171]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.898958][  T171]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.898962][  T171]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.898964][  T171]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.898968][  T171]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.898972][  T171]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.898974][  T171]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.898979][  T171]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.898981][  T171]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.898983][  T171]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.898985][  T171]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.898988][  T171]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.898990][  T171]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.898993][  T171]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.898997][  T171]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.898999][  T171]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.899003][  T171]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.899004][  T171]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.899009][  T171]  ? 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
[    8.899013][  T171]  _printk (kernel/printk/printk.c:2504)
[    8.899016][  T171]  ? snapshot_read.cold (user.c:?)
[    8.899019][  T171]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.899023][  T171]  ? 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
[    8.899026][  T171]  ? 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)
[    8.899031][  T171] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.899035][  T171]  ? 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
[    8.899042][  T171]  ? 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
[    8.899044][  T171]  do_one_initcall (init/main.c:1357)
[    8.899048][  T171]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.899053][  T171]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.899056][  T171]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.899061][  T171]  do_init_module (kernel/module/main.c:3117)
[    8.899065][  T171]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.899069][  T171]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.899072][  T171]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.899076][  T171]  load_module (kernel/module/main.c:3593)
[    8.899083][  T171]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.899086][  T171]  ? __ia32_sys_fsconfig (??:?)
[    8.899090][  T171]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    8.899093][  T171]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.899095][  T171]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.899099][  T171]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.899103][  T171]  init_module_from_file (kernel/module/main.c:3790)
[    8.899106][  T171]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.899115][  T171]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.899118][  T171]  ? 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)
[    8.899121][  T171]  idempotent_init_module (kernel/module/main.c:3802)
[    8.899124][  T171]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.899130][  T171]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.899132][  T171]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.899138][  T171]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.899140][  T171]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.899144][  T171]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.899146][  T171]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.899149][  T171]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.899151][  T171] RIP: 0033:0x7fd3b42db37d
[    8.899154][  T171] 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
[    8.899156][  T171] RSP: 002b:00007ffc8bf56e68 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.899159][  T171] RAX: ffffffffffffffda RBX: 00005593e3abe700 RCX: 00007fd3b42db37d
[    8.899160][  T171] RDX: 0000000000000000 RSI: 00005593a5f0affd RDI: 0000000000000005
[    8.899161][  T171] RBP: 00007ffc8bf56f00 R08: 0000000000000000 R09: 0000000000000000
[    8.899162][  T171] R10: 0000000000000000 R11: 0000000000000246 R12: 00005593a5f0affd
[    8.899163][  T171] R13: 00005593e3abe810 R14: 0000000000040000 R15: 0000000000000000
| [   10.909938][  T159] softirqs last disabled at (132737): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.909941][  T159] Preemption disabled at:
| [   10.909942][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.909951][  T159] Tainted: [W]=WARN
[   10.909952][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.909954][  T159] Call Trace:
[   10.909955][  T159]  <TASK>
[   10.909957][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.909962][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.909964][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.909969][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.909973][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.909977][  T159]  __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))
[   10.909979][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.909985][  T159]  ? 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)
[   10.909988][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.909991][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   10.909994][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.909995][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   10.909998][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.910002][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.910006][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.910009][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.910010][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.910014][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.910017][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.910020][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.910024][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.910028][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.910032][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.910034][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.910037][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.910042][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.910043][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.910048][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.910051][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.910052][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.910054][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.910058][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.910059][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.910062][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.910066][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.910069][  T159]  ? _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)
[   10.910074][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   10.910079][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   10.910083][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   10.910084][  T159]  ? idr_get_free (??:?)
[   10.910088][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   10.910091][  T159]  ? _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)
[   10.910094][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   10.910097][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.910098][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.910101][  T159]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   10.910105][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.910108][  T159]  new_sync_write (fs/read_write.c:595)
[   10.910112][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.910114][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.910122][  T159]  vfs_write (fs/read_write.c:687)
[   10.910126][  T159]  ksys_write (fs/read_write.c:739)
[   10.910129][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   10.910130][  T159]  ? 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)
[   10.910133][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.910136][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.910139][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.910142][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.910144][  T159] RIP: 0033:0x7efc62eb754e
[   10.910148][  T159] 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
[   10.910150][  T159] RSP: 002b:00007ffcced36ea0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.910153][  T159] RAX: ffffffffffffffda RBX: 00007efc63038580 RCX: 00007efc62eb754e
[   10.910154][  T159] RDX: 0000000000000025 RSI: 0000560491220ff0 RDI: 0000000000000001
[   10.910155][  T159] RBP: 00007ffcced36eb0 R08: 0000000000000000 R09: 0000000000000000
[   10.910156][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025
[   10.910157][  T159] R13: 0000000000000025 R14: 0000560491220ff0 R15: 0000000000000000
| [   12.003088][  T270] softirqs last disabled at (11097): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.003091][  T270] Preemption disabled at:
| [   12.003092][  T270] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.003101][  T270] Tainted: [W]=WARN
[   12.003102][  T270] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.003104][  T270] Call Trace:
[   12.003106][  T270]  <TASK>
[   12.003107][  T270]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.003113][  T270]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.003115][  T270]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.003120][  T270]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.003124][  T270]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.003129][  T270]  __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))
[   12.003131][  T270]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.003136][  T270]  ? 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)
[   12.003139][  T270]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.003142][  T270]  put_chars (drivers/char/virtio_console.c:1176)
[   12.003145][  T270]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.003147][  T270]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.003150][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.003153][  T270]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.003158][  T270]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.003161][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.003162][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.003166][  T270]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.003169][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.003172][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.003176][  T270]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.003180][  T270]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.003184][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.003186][  T270]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.003194][  T270]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.003198][  T270]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.003200][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.003205][  T270]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.003208][  T270]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.003209][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.003211][  T270]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.003215][  T270]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.003217][  T270]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.003220][  T270]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.003223][  T270]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.003226][  T270]  ? _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)
[   12.003232][  T270]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.003237][  T270]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.003241][  T270]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.003242][  T270]  ? idr_get_free (??:?)
[   12.003246][  T270]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.003249][  T270]  ? _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)
[   12.003252][  T270]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.003255][  T270]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.003257][  T270]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.003259][  T270]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   12.003263][  T270]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.003266][  T270]  new_sync_write (fs/read_write.c:595)
[   12.003271][  T270]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.003273][  T270]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.003281][  T270]  vfs_write (fs/read_write.c:687)
[   12.003285][  T270]  ksys_write (fs/read_write.c:739)
[   12.003288][  T270]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.003290][  T270]  ? 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)
[   12.003292][  T270]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.003296][  T270]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.003298][  T270]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.003301][  T270]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.003303][  T270] RIP: 0033:0x7efc62eb754e
[   12.003307][  T270] 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
[   12.003309][  T270] RSP: 002b:00007ffcced368a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.003312][  T270] RAX: ffffffffffffffda RBX: 00007efc63038580 RCX: 00007efc62eb754e
[   12.003314][  T270] RDX: 0000000000000037 RSI: 0000560491220ff0 RDI: 0000000000000001
[   12.003315][  T270] RBP: 00007ffcced368b0 R08: 0000000000000000 R09: 0000000000000000
[   12.003316][  T270] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000037
[   12.003317][  T270] R13: 0000000000000037 R14: 0000560491220ff0 R15: 0000000000000000
| [   13.006525][  T159] softirqs last disabled at (516468): 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))
| [   13.006527][  T159] Preemption disabled at:
| [   13.006528][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.006538][  T159] Tainted: [W]=WARN
[   13.006539][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.006541][  T159] Call Trace:
[   13.006542][  T159]  <TASK>
[   13.006544][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.006549][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.006551][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.006556][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.006560][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.006565][  T159]  __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))
[   13.006567][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.006573][  T159]  ? 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)
[   13.006575][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.006578][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   13.006581][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.006582][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.006586][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.006589][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.006593][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.006596][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.006598][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.006602][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.006605][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.006608][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.006612][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.006615][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.006620][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.006622][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.006626][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.006630][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.006631][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.006636][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.006639][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.006641][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.006643][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.006647][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.006648][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.006651][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.006655][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.006658][  T159]  ? _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)
[   13.006664][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.006669][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.006673][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.006674][  T159]  ? idr_get_free (??:?)
[   13.006679][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.006682][  T159]  ? _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)
[   13.006685][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.006687][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.006689][  T159]  ? handle_pte_fault (mm/memory.c:6582)
[   13.006694][  T159]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   13.006696][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.006699][  T159]  new_sync_write (fs/read_write.c:595)
[   13.006704][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.006705][  T159]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.006714][  T159]  vfs_write (fs/read_write.c:687)
[   13.006718][  T159]  ksys_write (fs/read_write.c:739)
[   13.006721][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.006723][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.006726][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.006729][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.006732][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.006735][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.006737][  T159] RIP: 0033:0x7efc62eb754e
[   13.006741][  T159] 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
[   13.006743][  T159] RSP: 002b:00007ffcced36ea0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.006746][  T159] RAX: ffffffffffffffda RBX: 00007efc63038580 RCX: 00007efc62eb754e
[   13.006747][  T159] RDX: 0000000000000026 RSI: 0000560491220ff0 RDI: 0000000000000001
[   13.006748][  T159] RBP: 00007ffcced36eb0 R08: 0000000000000000 R09: 0000000000000000
[   13.006749][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000026
[   13.006753][  T159] R13: 0000000000000026 R14: 0000560491220ff0 R15: 0000000000000000
| [   14.011000][  T159] softirqs last disabled at (683235): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.011003][  T159] Preemption disabled at:
| [   14.011004][  T159] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.011014][  T159] Tainted: [W]=WARN
[   14.011015][  T159] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.011017][  T159] Call Trace:
[   14.011019][  T159]  <TASK>
[   14.011020][  T159]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.011026][  T159]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.011028][  T159]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.011033][  T159]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.011037][  T159]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.011042][  T159]  __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))
[   14.011045][  T159]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.011051][  T159]  ? 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)
[   14.011053][  T159]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.011056][  T159]  put_chars (drivers/char/virtio_console.c:1176)
[   14.011059][  T159]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.011061][  T159]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.011065][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.011068][  T159]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.011073][  T159]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.011076][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.011077][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.011082][  T159]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.011085][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.011088][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.011092][  T159]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.011096][  T159]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.011101][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.011103][  T159]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.011107][  T159]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.011112][  T159]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.011113][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.011119][  T159]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.011122][  T159]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.011124][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.011126][  T159]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.011130][  T159]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.011131][  T159]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.011135][  T159]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.011138][  T159]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.011142][  T159]  ? _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)
[   14.011148][  T159]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.011152][  T159]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.011156][  T159]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.011158][  T159]  ? idr_get_free (??:?)
[   14.011162][  T159]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.011165][  T159]  ? _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)
[   14.011168][  T159]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.011171][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.011173][  T159]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.011175][  T159]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   14.011180][  T159]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.011183][  T159]  new_sync_write (fs/read_write.c:595)
[   14.011188][  T159]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.011190][  T159]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.011203][  T159]  vfs_write (fs/read_write.c:687)
[   14.011208][  T159]  ksys_write (fs/read_write.c:739)
[   14.011211][  T159]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.011213][  T159]  ? 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)
[   14.011216][  T159]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.011220][  T159]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.011222][  T159]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.011226][  T159]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.011228][  T159] RIP: 0033:0x7efc62eb754e
[   14.011232][  T159] 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
[   14.011234][  T159] RSP: 002b:00007ffcced36ea0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   14.011237][  T159] RAX: ffffffffffffffda RBX: 00007efc63038580 RCX: 00007efc62eb754e
[   14.011239][  T159] RDX: 0000000000000027 RSI: 0000560491220ff0 RDI: 0000000000000001
[   14.011240][  T159] RBP: 00007ffcced36eb0 R08: 0000000000000000 R09: 0000000000000000
[   14.011241][  T159] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027


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