======================================
| [    8.865786][  T169] softirqs last disabled at (24585): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.865789][  T169] Preemption disabled at:
| [    8.865790][  T169] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.865799][  T169] Tainted: [W]=WARN
[    8.865800][  T169] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.865801][  T169] Call Trace:
[    8.865803][  T169]  <TASK>
[    8.865804][  T169]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.865809][  T169]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.865811][  T169]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.865816][  T169]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.865819][  T169]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    8.865824][  T169]  __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))
[    8.865826][  T169]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.865832][  T169]  ? 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)
[    8.865834][  T169]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.865837][  T169]  put_chars (drivers/char/virtio_console.c:1176)
[    8.865840][  T169]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.865843][  T169]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.865848][  T169]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.865855][  T169]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.865857][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.865860][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.865864][  T169]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.865868][  T169]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.865872][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.865874][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.865878][  T169]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.865882][  T169]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.865883][  T169]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.865888][  T169]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.865891][  T169]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.865892][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.865895][  T169]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.865898][  T169]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.865899][  T169]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.865902][  T169]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.865906][  T169]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.865908][  T169]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.865912][  T169]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.865913][  T169]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.865918][  T169]  ? 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
[    8.865922][  T169]  _printk (kernel/printk/printk.c:2504)
[    8.865925][  T169]  ? snapshot_read.cold (user.c:?)
[    8.865928][  T169]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.865932][  T169]  ? 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
[    8.865936][  T169]  ? 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)
[    8.865940][  T169] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.865944][  T169]  ? 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
[    8.865951][  T169]  ? 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
[    8.865953][  T169]  do_one_initcall (init/main.c:1357)
[    8.865957][  T169]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.865962][  T169]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.865965][  T169]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.865970][  T169]  do_init_module (kernel/module/main.c:3117)
[    8.865974][  T169]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.865978][  T169]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.865981][  T169]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.865988][  T169]  load_module (kernel/module/main.c:3593)
[    8.865995][  T169]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.865999][  T169]  ? __ia32_sys_fsconfig (??:?)
[    8.866002][  T169]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    8.866006][  T169]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.866009][  T169]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.866013][  T169]  init_module_from_file (kernel/module/main.c:3790)
[    8.866016][  T169]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.866024][  T169]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.866028][  T169]  ? 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)
[    8.866030][  T169]  idempotent_init_module (kernel/module/main.c:3802)
[    8.866034][  T169]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.866040][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.866042][  T169]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.866048][  T169]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.866050][  T169]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.866054][  T169]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.866056][  T169]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.866058][  T169]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.866061][  T169] RIP: 0033:0x7f8f5a34d37d
[    8.866064][  T169] 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
[    8.866066][  T169] RSP: 002b:00007ffd6e6e2e78 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.866068][  T169] RAX: ffffffffffffffda RBX: 00005603c76cd700 RCX: 00007f8f5a34d37d
[    8.866070][  T169] RDX: 0000000000000000 RSI: 00005603b0f69ffd RDI: 0000000000000005
[    8.866071][  T169] RBP: 00007ffd6e6e2f10 R08: 0000000000000000 R09: 0000000000000000
[    8.866072][  T169] R10: 0000000000000000 R11: 0000000000000246 R12: 00005603b0f69ffd
[    8.866073][  T169] R13: 00005603c76cd810 R14: 0000000000040000 R15: 0000000000000000
| [   11.969678][  T157] softirqs last disabled at (149482): 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))
| [   11.969680][  T157] Preemption disabled at:
| [   11.969681][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.969690][  T157] Tainted: [W]=WARN
[   11.969691][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.969693][  T157] Call Trace:
[   11.969695][  T157]  <TASK>
[   11.969696][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.969707][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.969710][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.969714][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.969718][  T157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.969722][  T157]  __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))
[   11.969724][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.969730][  T157]  ? 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)
[   11.969732][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.969735][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   11.969738][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.969740][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.969743][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.969745][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.969750][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.969753][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.969754][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.969758][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.969761][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.969764][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.969767][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.969771][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.969775][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.969777][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.969781][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.969784][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.969786][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.969791][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.969793][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.969795][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.969797][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.969800][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.969802][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.969804][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.969808][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.969811][  T157]  ? _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)
[   11.969816][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   11.969820][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   11.969824][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   11.969825][  T157]  ? idr_get_free (??:?)
[   11.969829][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   11.969832][  T157]  ? _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)
[   11.969834][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   11.969837][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.969839][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.969841][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   11.969845][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.969847][  T157]  new_sync_write (fs/read_write.c:595)
[   11.969852][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.969853][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.969861][  T157]  vfs_write (fs/read_write.c:687)
[   11.969865][  T157]  ksys_write (fs/read_write.c:739)
[   11.969868][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.969869][  T157]  ? 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)
[   11.969872][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.969875][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.969877][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.969880][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.969883][  T157] RIP: 0033:0x7fe84ace154e
[   11.969887][  T157] 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
[   11.969888][  T157] RSP: 002b:00007fff58a60140 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   11.969891][  T157] RAX: ffffffffffffffda RBX: 00007fe84ae62580 RCX: 00007fe84ace154e
[   11.969893][  T157] RDX: 0000000000000023 RSI: 0000558fadd05ab0 RDI: 0000000000000001
[   11.969894][  T157] RBP: 00007fff58a60150 R08: 0000000000000000 R09: 0000000000000000
[   11.969895][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   11.969896][  T157] R13: 0000000000000023 R14: 0000558fadd05ab0 R15: 0000000000000000
| [   15.570703][  T157] softirqs last disabled at (272968): 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))
| [   15.570706][  T157] Preemption disabled at:
| [   15.570706][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.570719][  T157] Tainted: [W]=WARN
[   15.570720][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.570722][  T157] Call Trace:
[   15.570723][  T157]  <TASK>
[   15.570725][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.570730][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.570732][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.570737][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.570740][  T157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.570745][  T157]  __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))
[   15.570747][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.570753][  T157]  ? 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)
[   15.570755][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.570758][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   15.570761][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.570763][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.570766][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.570769][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.570773][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.570775][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.570777][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.570781][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.570784][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.570787][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.570790][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.570794][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.570798][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.570800][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.570804][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.570807][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.570809][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.570814][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.570816][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.570818][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.570820][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.570823][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.570825][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.570828][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.570831][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.570834][  T157]  ? _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)
[   15.570839][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.570843][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.570847][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.570849][  T157]  ? idr_get_free (??:?)
[   15.570852][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.570855][  T157]  ? _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)
[   15.570858][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.570861][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.570862][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.570864][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   15.570869][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.570871][  T157]  new_sync_write (fs/read_write.c:595)
[   15.570876][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.570877][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.570885][  T157]  vfs_write (fs/read_write.c:687)
[   15.570889][  T157]  ksys_write (fs/read_write.c:739)
[   15.570891][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.570893][  T157]  ? 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)
[   15.570896][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.570899][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.570901][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.570904][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.570907][  T157] RIP: 0033:0x7fe84ace154e
[   15.570911][  T157] 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
[   15.570912][  T157] RSP: 002b:00007fff58a60140 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.570915][  T157] RAX: ffffffffffffffda RBX: 00007fe84ae62580 RCX: 00007fe84ace154e
[   15.570917][  T157] RDX: 0000000000000023 RSI: 0000558fadd05ab0 RDI: 0000000000000001
[   15.570918][  T157] RBP: 00007fff58a60150 R08: 0000000000000000 R09: 0000000000000000
[   15.570919][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   15.570920][  T157] R13: 0000000000000023 R14: 0000558fadd05ab0 R15: 0000000000000000
| [   19.160645][  T157] softirqs last disabled at (376506): 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))
| [   19.160647][  T157] Preemption disabled at:
| [   19.160648][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.160658][  T157] Tainted: [W]=WARN
[   19.160659][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.160661][  T157] Call Trace:
[   19.160662][  T157]  <TASK>
[   19.160664][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.160669][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.160671][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.160675][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.160679][  T157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.160683][  T157]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.160685][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.160691][  T157]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.160694][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.160697][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   19.160699][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.160701][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.160704][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.160707][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.160711][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.160713][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.160715][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.160719][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.160722][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.160730][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.160734][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.160737][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.160741][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.160743][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.160747][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.160751][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.160752][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.160757][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.160760][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.160761][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.160763][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.160766][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.160768][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.160771][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.160774][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.160777][  T157]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   19.160783][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.160787][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.160791][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.160792][  T157]  ? idr_get_free (??:?)
[   19.160796][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.160799][  T157]  ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272)
[   19.160801][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.160804][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.160806][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.160808][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   19.160812][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.160814][  T157]  new_sync_write (fs/read_write.c:595)
[   19.160819][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.160820][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.160828][  T157]  vfs_write (fs/read_write.c:687)
[   19.160832][  T157]  ksys_write (fs/read_write.c:739)
[   19.160835][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.160836][  T157]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.160839][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.160842][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.160845][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.160848][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.160850][  T157] RIP: 0033:0x7fe84ace154e
[   19.160854][  T157] 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
[   19.160856][  T157] RSP: 002b:00007fff58a60140 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   19.160859][  T157] RAX: ffffffffffffffda RBX: 00007fe84ae62580 RCX: 00007fe84ace154e
[   19.160861][  T157] RDX: 0000000000000023 RSI: 0000558fadd05ab0 RDI: 0000000000000001
[   19.160862][  T157] RBP: 00007fff58a60150 R08: 0000000000000000 R09: 0000000000000000
[   19.160863][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   19.160863][  T157] R13: 0000000000000023 R14: 0000558fadd05ab0 R15: 0000000000000000
| [   22.622779][  T157] softirqs last disabled at (498274): 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))
| [   22.622782][  T157] Preemption disabled at:
| [   22.622782][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.622791][  T157] Tainted: [W]=WARN
[   22.622792][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.622794][  T157] Call Trace:
[   22.622796][  T157]  <TASK>
[   22.622797][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.622803][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.622804][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.622809][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.622813][  T157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.622817][  T157]  __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))
[   22.622819][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.622825][  T157]  ? 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)
[   22.622827][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.622830][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   22.622833][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.622834][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   22.622838][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.622841][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.622845][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.622848][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.622849][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.622853][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.622856][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.622860][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.622863][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.622867][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.622871][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.622873][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.622876][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.622880][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.622882][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.622887][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.622889][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.622891][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.622893][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.622896][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.622898][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.622901][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.622904][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.622907][  T157]  ? _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)
[   22.622913][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   22.622917][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   22.622921][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   22.622922][  T157]  ? idr_get_free (??:?)
[   22.622926][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   22.622929][  T157]  ? _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)
[   22.622932][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   22.622934][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.622936][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.622938][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   22.622943][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.622945][  T157]  new_sync_write (fs/read_write.c:595)
[   22.622950][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   22.622951][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.622959][  T157]  vfs_write (fs/read_write.c:687)
[   22.622963][  T157]  ksys_write (fs/read_write.c:739)
[   22.622966][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   22.622968][  T157]  ? 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)
[   22.622970][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.622973][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.622975][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.622979][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.622981][  T157] RIP: 0033:0x7fe84ace154e
[   22.622988][  T157] 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
[   22.622990][  T157] RSP: 002b:00007fff58a60140 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   22.622993][  T157] RAX: ffffffffffffffda RBX: 00007fe84ae62580 RCX: 00007fe84ace154e
[   22.622995][  T157] RDX: 0000000000000023 RSI: 0000558fadd05ab0 RDI: 0000000000000001
[   22.622996][  T157] RBP: 00007fff58a60150 R08: 0000000000000000 R09: 0000000000000000
[   22.622997][  T157] 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