======================================
| [    8.788249][  T170] softirqs last disabled at (25781): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.788251][  T170] Preemption disabled at:
| [    8.788252][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.788260][  T170] Tainted: [W]=WARN
[    8.788261][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.788263][  T170] Call Trace:
[    8.788264][  T170]  <TASK>
[    8.788265][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.788270][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.788272][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.788277][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.788280][  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)
[    8.788285][  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))
[    8.788287][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.788293][  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)
[    8.788295][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.788298][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[    8.788300][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.788303][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.788308][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.788314][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.788316][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.788319][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.788323][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.788326][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.788330][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.788332][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.788336][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.788339][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.788341][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.788346][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.788348][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.788350][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.788352][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.788355][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.788356][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.788359][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.788362][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.788364][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.788368][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.788369][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.788373][  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
[    8.788377][  T170]  _printk (kernel/printk/printk.c:2504)
[    8.788381][  T170]  ? snapshot_read.cold (user.c:?)
[    8.788384][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.788387][  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
[    8.788391][  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)
[    8.788395][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.788398][  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
[    8.788405][  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
[    8.788408][  T170]  do_one_initcall (init/main.c:1357)
[    8.788411][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.788421][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.788423][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.788429][  T170]  do_init_module (kernel/module/main.c:3117)
[    8.788432][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.788436][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.788439][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.788443][  T170]  load_module (kernel/module/main.c:3593)
[    8.788449][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.788453][  T170]  ? __ia32_sys_fsconfig (??:?)
[    8.788456][  T170]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    8.788459][  T170]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.788463][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.788466][  T170]  init_module_from_file (kernel/module/main.c:3790)
[    8.788470][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.788477][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.788481][  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)
[    8.788483][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[    8.788486][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.788492][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.788494][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.788500][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.788502][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.788506][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.788508][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.788510][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.788512][  T170] RIP: 0033:0x7f807a9a437d
[    8.788516][  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
[    8.788517][  T170] RSP: 002b:00007ffd1c1cf878 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.788520][  T170] RAX: ffffffffffffffda RBX: 000055d9e46bd700 RCX: 00007f807a9a437d
[    8.788521][  T170] RDX: 0000000000000000 RSI: 000055d9b0496ffd RDI: 0000000000000005
[    8.788522][  T170] RBP: 00007ffd1c1cf910 R08: 0000000000000000 R09: 0000000000000000
[    8.788523][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d9b0496ffd
[    8.788524][  T170] R13: 000055d9e46bd810 R14: 0000000000040000 R15: 0000000000000000
| [   11.966772][  T158] softirqs last disabled at (136791): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.966775][  T158] Preemption disabled at:
| [   11.966775][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.966784][  T158] Tainted: [W]=WARN
[   11.966785][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.966787][  T158] Call Trace:
[   11.966789][  T158]  <TASK>
[   11.966790][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.966796][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.966798][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.966802][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.966806][  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)
[   11.966811][  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))
[   11.966813][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.966818][  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)
[   11.966821][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.966824][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   11.966827][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.966828][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.966832][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.966835][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.966839][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.966842][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.966843][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.966847][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.966850][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.966853][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.966857][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.966860][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.966864][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.966866][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.966870][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.966874][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.966875][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.966877][  T158]  ? asm_fred_entrypoint_user (arch/x86/entry/entry_64_fred.S:40)
[   11.966882][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.966885][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.966886][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.966888][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.966892][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.966893][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.966896][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.966900][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.966903][  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)
[   11.966909][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   11.966913][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   11.966917][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   11.966919][  T158]  ? idr_get_free (??:?)
[   11.966921][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   11.966924][  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)
[   11.966927][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   11.966930][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.966932][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.966934][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   11.966938][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.966940][  T158]  new_sync_write (fs/read_write.c:595)
[   11.966945][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.966947][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.966954][  T158]  vfs_write (fs/read_write.c:687)
[   11.966959][  T158]  ksys_write (fs/read_write.c:739)
[   11.966961][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.966963][  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)
[   11.966966][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.966969][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.966971][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.966974][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.966976][  T158] RIP: 0033:0x7fc632f2454e
[   11.966979][  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
[   11.966981][  T158] RSP: 002b:00007ffc447147a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   11.966984][  T158] RAX: ffffffffffffffda RBX: 00007fc6330a5580 RCX: 00007fc632f2454e
[   11.966986][  T158] RDX: 0000000000000023 RSI: 00005576e12cdab0 RDI: 0000000000000001
[   11.966987][  T158] RBP: 00007ffc447147b0 R08: 0000000000000000 R09: 0000000000000000
[   11.966988][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   11.966989][  T158] R13: 0000000000000023 R14: 00005576e12cdab0 R15: 0000000000000000
| [   15.582857][  T158] softirqs last disabled at (270794): 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))
| [   15.582860][  T158] Preemption disabled at:
| [   15.582861][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.582869][  T158] Tainted: [W]=WARN
[   15.582870][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.582872][  T158] Call Trace:
[   15.582874][  T158]  <TASK>
[   15.582875][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.582880][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.582883][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.582887][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.582891][  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)
[   15.582896][  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))
[   15.582898][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.582904][  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)
[   15.582906][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.582910][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   15.582912][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.582914][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.582917][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.582920][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.582925][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.582928][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.582929][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.582934][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.582937][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.582940][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.582943][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.582947][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.582951][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.582954][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.582957][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.582961][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.582963][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.582968][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.582970][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.582972][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.582974][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.582978][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.582979][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.582983][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.582986][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.582989][  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)
[   15.582995][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.582999][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.583003][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.583005][  T158]  ? idr_get_free (??:?)
[   15.583009][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.583012][  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)
[   15.583015][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.583018][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.583019][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.583022][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   15.583026][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.583028][  T158]  new_sync_write (fs/read_write.c:595)
[   15.583033][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.583035][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.583043][  T158]  vfs_write (fs/read_write.c:687)
[   15.583047][  T158]  ksys_write (fs/read_write.c:739)
[   15.583050][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.583052][  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)
[   15.583054][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.583058][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.583060][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.583063][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.583066][  T158] RIP: 0033:0x7fc632f2454e
[   15.583070][  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
[   15.583071][  T158] RSP: 002b:00007ffc447147a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.583074][  T158] RAX: ffffffffffffffda RBX: 00007fc6330a5580 RCX: 00007fc632f2454e
[   15.583076][  T158] RDX: 0000000000000023 RSI: 00005576e12cdab0 RDI: 0000000000000001
[   15.583077][  T158] RBP: 00007ffc447147b0 R08: 0000000000000000 R09: 0000000000000000
[   15.583078][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   15.583079][  T158] R13: 0000000000000023 R14: 00005576e12cdab0 R15: 0000000000000000
| [   19.187669][  T158] softirqs last disabled at (394436): 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))
| [   19.187671][  T158] Preemption disabled at:
| [   19.187672][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.187680][  T158] Tainted: [W]=WARN
[   19.187681][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.187683][  T158] Call Trace:
[   19.187685][  T158]  <TASK>
[   19.187686][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.187691][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.187693][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.187698][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.187701][  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)
[   19.187706][  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))
[   19.187708][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.187716][  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)
[   19.187719][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.187722][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   19.187724][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.187726][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.187729][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.187732][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.187736][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.187739][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.187741][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.187744][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.187747][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.187750][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.187754][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.187758][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.187762][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.187764][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.187767][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.187771][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.187773][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.187777][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.187780][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.187782][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.187784][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.187787][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.187788][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.187791][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.187795][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.187798][  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)
[   19.187803][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.187807][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.187811][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.187813][  T158]  ? idr_get_free (??:?)
[   19.187816][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.187819][  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)
[   19.187822][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.187825][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.187826][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.187828][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   19.187833][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.187835][  T158]  new_sync_write (fs/read_write.c:595)
[   19.187840][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.187841][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.187849][  T158]  vfs_write (fs/read_write.c:687)
[   19.187853][  T158]  ksys_write (fs/read_write.c:739)
[   19.187856][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.187857][  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)
[   19.187860][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.187863][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.187865][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.187868][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.187871][  T158] RIP: 0033:0x7fc632f2454e
[   19.187874][  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
[   19.187876][  T158] RSP: 002b:00007ffc447147a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   19.187879][  T158] RAX: ffffffffffffffda RBX: 00007fc6330a5580 RCX: 00007fc632f2454e
[   19.187881][  T158] RDX: 0000000000000023 RSI: 00005576e12cdab0 RDI: 0000000000000001
[   19.187882][  T158] RBP: 00007ffc447147b0 R08: 0000000000000000 R09: 0000000000000000
[   19.187883][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   19.187884][  T158] R13: 0000000000000023 R14: 00005576e12cdab0 R15: 0000000000000000
| [   22.630930][  T158] softirqs last disabled at (522278): 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))
| [   22.630933][  T158] Preemption disabled at:
| [   22.630934][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.630942][  T158] Tainted: [W]=WARN
[   22.630943][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.630945][  T158] Call Trace:
[   22.630947][  T158]  <TASK>
[   22.630948][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.630953][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.630955][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.630960][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.630964][  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)
[   22.630968][  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))
[   22.630970][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.630976][  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)
[   22.630978][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.630981][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   22.630984][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.630985][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   22.630988][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.630991][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.630996][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.630998][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.631000][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.631004][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.631007][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.631010][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.631013][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.631017][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.631021][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.631023][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.631026][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.631030][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.631032][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.631037][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.631039][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.631041][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.631043][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.631046][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.631048][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.631051][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.631054][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.631057][  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)
[   22.631062][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   22.631066][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   22.631070][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   22.631072][  T158]  ? idr_get_free (??:?)
[   22.631075][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   22.631078][  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)
[   22.631081][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   22.631084][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.631085][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.631087][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   22.631092][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   22.631094][  T158]  new_sync_write (fs/read_write.c:595)
[   22.631099][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   22.631100][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.631108][  T158]  vfs_write (fs/read_write.c:687)
[   22.631112][  T158]  ksys_write (fs/read_write.c:739)
[   22.631115][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   22.631116][  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)
[   22.631119][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.631122][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.631125][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.631128][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.631130][  T158] RIP: 0033:0x7fc632f2454e
[   22.631134][  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
[   22.631136][  T158] RSP: 002b:00007ffc447147a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   22.631139][  T158] RAX: ffffffffffffffda RBX: 00007fc6330a5580 RCX: 00007fc632f2454e
[   22.631140][  T158] RDX: 0000000000000023 RSI: 00005576e12cdab0 RDI: 0000000000000001
[   22.631141][  T158] RBP: 00007ffc447147b0 R08: 0000000000000000 R09: 0000000000000000
[   22.631142][  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