======================================
| [    8.586890][  T170] softirqs last disabled at (36221): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.586893][  T170] Preemption disabled at:
| [    8.586894][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.586902][  T170] Tainted: [W]=WARN
[    8.586903][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.586905][  T170] Call Trace:
[    8.586906][  T170]  <TASK>
[    8.586908][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.586913][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.586915][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.586919][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.586923][  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)
[    8.586927][  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))
[    8.586929][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.586935][  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)
[    8.586937][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.586940][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[    8.586943][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.586945][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.586950][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.586956][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.586958][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.586962][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.586965][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.586969][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.586973][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.586975][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.586978][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.586982][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.586985][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.586990][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.586993][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.586994][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.586996][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.587000][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.587001][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.587004][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.587007][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.587009][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.587013][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.587014][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.587018][  T170]  ? 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
[    8.587022][  T170]  _printk (kernel/printk/printk.c:2504)
[    8.587026][  T170]  ? snapshot_read.cold (user.c:?)
[    8.587029][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.587032][  T170]  ? 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
[    8.587036][  T170]  ? 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)
[    8.587040][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.587044][  T170]  ? 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
[    8.587050][  T170]  ? 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
[    8.587053][  T170]  do_one_initcall (init/main.c:1357)
[    8.587056][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.587061][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.587064][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.587069][  T170]  do_init_module (kernel/module/main.c:3117)
[    8.587072][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.587076][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.587079][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.587083][  T170]  load_module (kernel/module/main.c:3593)
[    8.587089][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.587093][  T170]  ? __ia32_sys_fsconfig (??:?)
[    8.587096][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.587099][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.587102][  T170]  init_module_from_file (kernel/module/main.c:3790)
[    8.587106][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.587113][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.587116][  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)
[    8.587119][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[    8.587122][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.587128][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.587131][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.587136][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.587138][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.587142][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.587144][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.587147][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.587149][  T170] RIP: 0033:0x7f669615837d
[    8.587152][  T170] 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
[    8.587154][  T170] RSP: 002b:00007ffc0be69f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.587156][  T170] RAX: ffffffffffffffda RBX: 00005611f14a8700 RCX: 00007f669615837d
[    8.587158][  T170] RDX: 0000000000000000 RSI: 00005611e6189ffd RDI: 0000000000000005
[    8.587159][  T170] RBP: 00007ffc0be69ff0 R08: 0000000000000000 R09: 0000000000000000
[    8.587159][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 00005611e6189ffd
[    8.587160][  T170] R13: 00005611f14a8810 R14: 0000000000040000 R15: 0000000000000000
| [   11.770645][  T158] softirqs last disabled at (159984): 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))
| [   11.770647][  T158] Preemption disabled at:
| [   11.770648][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.770663][  T158] Tainted: [W]=WARN
[   11.770664][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.770666][  T158] Call Trace:
[   11.770667][  T158]  <TASK>
[   11.770669][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.770674][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.770676][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.770681][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.770684][  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)
[   11.770689][  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))
[   11.770691][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.770697][  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)
[   11.770699][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.770702][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   11.770705][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.770706][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.770709][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.770713][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.770717][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.770720][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.770721][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.770725][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.770728][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.770731][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.770735][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.770738][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.770742][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.770745][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.770748][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.770752][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.770754][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.770759][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.770761][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.770763][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.770765][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.770768][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.770770][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.770773][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.770776][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.770779][  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)
[   11.770785][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   11.770789][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   11.770793][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   11.770795][  T158]  ? idr_get_free (??:?)
[   11.770798][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   11.770801][  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)
[   11.770804][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   11.770807][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.770809][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.770811][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   11.770815][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.770818][  T158]  new_sync_write (fs/read_write.c:595)
[   11.770822][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.770824][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.770832][  T158]  vfs_write (fs/read_write.c:687)
[   11.770836][  T158]  ksys_write (fs/read_write.c:739)
[   11.770839][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.770840][  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)
[   11.770843][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.770846][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.770849][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.770852][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.770854][  T158] RIP: 0033:0x7f3bbdc0354e
[   11.770858][  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
[   11.770860][  T158] RSP: 002b:00007ffc94ec23e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   11.770863][  T158] RAX: ffffffffffffffda RBX: 00007f3bbdd84580 RCX: 00007f3bbdc0354e
[   11.770864][  T158] RDX: 0000000000000023 RSI: 0000556fd9fc3ab0 RDI: 0000000000000001
[   11.770865][  T158] RBP: 00007ffc94ec23f0 R08: 0000000000000000 R09: 0000000000000000
[   11.770866][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   11.770867][  T158] R13: 0000000000000023 R14: 0000556fd9fc3ab0 R15: 0000000000000000
| [   15.206273][  T158] softirqs last disabled at (287702): 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))
| [   15.206276][  T158] Preemption disabled at:
| [   15.206277][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.206285][  T158] Tainted: [W]=WARN
[   15.206286][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.206288][  T158] Call Trace:
[   15.206290][  T158]  <TASK>
[   15.206291][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.206296][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.206299][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.206303][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.206307][  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)
[   15.206311][  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))
[   15.206313][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.206319][  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)
[   15.206322][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.206325][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   15.206327][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.206329][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.206332][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.206335][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.206339][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.206342][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.206344][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.206348][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.206351][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.206354][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.206357][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.206361][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.206365][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.206367][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.206371][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.206375][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.206376][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.206381][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.206384][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.206385][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.206387][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.206391][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.206392][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.206395][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.206398][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.206402][  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)
[   15.206407][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.206411][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.206415][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.206417][  T158]  ? idr_get_free (??:?)
[   15.206421][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.206423][  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)
[   15.206426][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.206429][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.206430][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.206432][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   15.206437][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.206439][  T158]  new_sync_write (fs/read_write.c:595)
[   15.206444][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.206445][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.206453][  T158]  vfs_write (fs/read_write.c:687)
[   15.206457][  T158]  ksys_write (fs/read_write.c:739)
[   15.206460][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.206462][  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)
[   15.206464][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.206468][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.206470][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.206473][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.206475][  T158] RIP: 0033:0x7f3bbdc0354e
[   15.206479][  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
[   15.206481][  T158] RSP: 002b:00007ffc94ec23e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.206484][  T158] RAX: ffffffffffffffda RBX: 00007f3bbdd84580 RCX: 00007f3bbdc0354e
[   15.206485][  T158] RDX: 0000000000000023 RSI: 0000556fd9fc3ab0 RDI: 0000000000000001
[   15.206487][  T158] RBP: 00007ffc94ec23f0 R08: 0000000000000000 R09: 0000000000000000
[   15.206488][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   15.206489][  T158] R13: 0000000000000023 R14: 0000556fd9fc3ab0 R15: 0000000000000000
| [   18.647373][  T158] softirqs last disabled at (392966): 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))
| [   18.647376][  T158] Preemption disabled at:
| [   18.647376][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.647385][  T158] Tainted: [W]=WARN
[   18.647386][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.647388][  T158] Call Trace:
[   18.647389][  T158]  <TASK>
[   18.647391][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.647396][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.647398][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.647403][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.647406][  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)
[   18.647411][  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))
[   18.647413][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.647418][  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)
[   18.647420][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.647423][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   18.647426][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.647428][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   18.647431][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.647434][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.647438][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.647441][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.647442][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.647446][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.647449][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.647452][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.647456][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.647459][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.647464][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.647466][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.647469][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.647473][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.647475][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.647480][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.647482][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.647484][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.647486][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.647489][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.647491][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.647494][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.647497][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.647500][  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)
[   18.647506][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   18.647510][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   18.647514][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   18.647516][  T158]  ? idr_get_free (??:?)
[   18.647519][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   18.647522][  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)
[   18.647525][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   18.647528][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.647529][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.647531][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   18.647536][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   18.647538][  T158]  new_sync_write (fs/read_write.c:595)
[   18.647543][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   18.647545][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.647552][  T158]  vfs_write (fs/read_write.c:687)
[   18.647557][  T158]  ksys_write (fs/read_write.c:739)
[   18.647559][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   18.647561][  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)
[   18.647564][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.647567][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.647569][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.647572][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.647575][  T158] RIP: 0033:0x7f3bbdc0354e
[   18.647579][  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
[   18.647581][  T158] RSP: 002b:00007ffc94ec23e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   18.647584][  T158] RAX: ffffffffffffffda RBX: 00007f3bbdd84580 RCX: 00007f3bbdc0354e
[   18.647585][  T158] RDX: 0000000000000023 RSI: 0000556fd9fc3ab0 RDI: 0000000000000001
[   18.647586][  T158] RBP: 00007ffc94ec23f0 R08: 0000000000000000 R09: 0000000000000000
[   18.647587][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   18.647588][  T158] R13: 0000000000000023 R14: 0000556fd9fc3ab0 R15: 0000000000000000
| [   22.116259][  T158] softirqs last disabled at (522972): 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))
| [   22.116262][  T158] Preemption disabled at:
| [   22.116263][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.116271][  T158] Tainted: [W]=WARN
[   22.116272][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.116274][  T158] Call Trace:
[   22.116276][  T158]  <TASK>
[   22.116277][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.116282][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.116284][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.116289][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.116292][  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)
[   22.116297][  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))
[   22.116299][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.116305][  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)
[   22.116307][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.116310][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   22.116313][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.116315][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   22.116318][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.116321][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.116325][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.116328][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.116329][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.116333][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.116337][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.116339][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.116343][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.116347][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.116351][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.116353][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.116356][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.116360][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.116362][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.116367][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.116369][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.116371][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.116373][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.116376][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.116378][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.116381][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.116384][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.116387][  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)
[   22.116393][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   22.116397][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   22.116401][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   22.116403][  T158]  ? idr_get_free (??:?)
[   22.116406][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   22.116409][  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)
[   22.116412][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   22.116415][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.116416][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.116418][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   22.116423][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.116425][  T158]  new_sync_write (fs/read_write.c:595)
[   22.116430][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   22.116432][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.116439][  T158]  vfs_write (fs/read_write.c:687)
[   22.116443][  T158]  ksys_write (fs/read_write.c:739)
[   22.116446][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   22.116448][  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)
[   22.116450][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.116454][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.116456][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.116459][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.116461][  T158] RIP: 0033:0x7f3bbdc0354e
[   22.116465][  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
[   22.116467][  T158] RSP: 002b:00007ffc94ec23e0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   22.116470][  T158] RAX: ffffffffffffffda RBX: 00007f3bbdd84580 RCX: 00007f3bbdc0354e
[   22.116471][  T158] RDX: 0000000000000023 RSI: 0000556fd9fc3ab0 RDI: 0000000000000001
[   22.116472][  T158] RBP: 00007ffc94ec23f0 R08: 0000000000000000 R09: 0000000000000000
[   22.116473][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023


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