======================================
| [    8.887682][  T169] softirqs last disabled at (31719): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.887685][  T169] Preemption disabled at:
| [    8.887685][  T169] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.887693][  T169] Tainted: [W]=WARN
[    8.887694][  T169] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.887696][  T169] Call Trace:
[    8.887697][  T169]  <TASK>
[    8.887699][  T169]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.887704][  T169]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.887706][  T169]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.887710][  T169]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.887714][  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)
[    8.887718][  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))
[    8.887720][  T169]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.887728][  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)
[    8.887730][  T169]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.887733][  T169]  put_chars (drivers/char/virtio_console.c:1176)
[    8.887736][  T169]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.887739][  T169]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.887743][  T169]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.887749][  T169]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.887751][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.887755][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.887758][  T169]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.887762][  T169]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.887766][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.887768][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.887771][  T169]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.887775][  T169]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.887776][  T169]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.887781][  T169]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.887783][  T169]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.887785][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.887787][  T169]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.887790][  T169]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.887791][  T169]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.887794][  T169]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.887798][  T169]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.887799][  T169]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    8.887803][  T169]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    8.887804][  T169]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    8.887809][  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
[    8.887812][  T169]  _printk (kernel/printk/printk.c:2504)
[    8.887816][  T169]  ? snapshot_read.cold (user.c:?)
[    8.887819][  T169]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    8.887822][  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
[    8.887826][  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)
[    8.887831][  T169] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    8.887834][  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
[    8.887841][  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
[    8.887843][  T169]  do_one_initcall (init/main.c:1357)
[    8.887847][  T169]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.887851][  T169]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.887854][  T169]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.887859][  T169]  do_init_module (kernel/module/main.c:3117)
[    8.887862][  T169]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.887866][  T169]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.887869][  T169]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.887873][  T169]  load_module (kernel/module/main.c:3593)
[    8.887879][  T169]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.887882][  T169]  ? __ia32_sys_fsconfig (??:?)
[    8.887885][  T169]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    8.887889][  T169]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.887893][  T169]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.887896][  T169]  init_module_from_file (kernel/module/main.c:3790)
[    8.887900][  T169]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.887907][  T169]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.887910][  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)
[    8.887913][  T169]  idempotent_init_module (kernel/module/main.c:3802)
[    8.887916][  T169]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.887922][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.887924][  T169]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.887929][  T169]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.887931][  T169]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.887936][  T169]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.887937][  T169]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.887940][  T169]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.887942][  T169] RIP: 0033:0x7fbf6eacf37d
[    8.887945][  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
[    8.887947][  T169] RSP: 002b:00007ffd71a5ae88 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.887949][  T169] RAX: ffffffffffffffda RBX: 0000557035e45700 RCX: 00007fbf6eacf37d
[    8.887951][  T169] RDX: 0000000000000000 RSI: 0000557018637ffd RDI: 0000000000000005
[    8.887952][  T169] RBP: 00007ffd71a5af20 R08: 0000000000000000 R09: 0000000000000000
[    8.887953][  T169] R10: 0000000000000000 R11: 0000000000000246 R12: 0000557018637ffd
[    8.887953][  T169] R13: 0000557035e45810 R14: 0000000000040000 R15: 0000000000000000
| [   10.839998][  T157] softirqs last disabled at (108420): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   10.840001][  T157] Preemption disabled at:
| [   10.840001][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.840010][  T157] Tainted: [W]=WARN
[   10.840011][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.840013][  T157] Call Trace:
[   10.840014][  T157]  <TASK>
[   10.840016][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.840021][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.840023][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.840027][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.840031][  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)
[   10.840036][  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))
[   10.840038][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.840043][  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)
[   10.840046][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.840048][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   10.840051][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.840053][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   10.840056][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.840059][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.840063][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.840066][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.840067][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.840071][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.840074][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.840077][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.840080][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.840084][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.840088][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.840090][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.840093][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.840097][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.840099][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.840103][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.840106][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.840108][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.840110][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.840113][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.840114][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.840117][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.840120][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.840123][  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)
[   10.840129][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   10.840133][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   10.840136][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   10.840138][  T157]  ? idr_get_free (??:?)
[   10.840142][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   10.840145][  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)
[   10.840148][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   10.840150][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.840152][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.840154][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   10.840158][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   10.840160][  T157]  new_sync_write (fs/read_write.c:595)
[   10.840165][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   10.840166][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.840174][  T157]  vfs_write (fs/read_write.c:687)
[   10.840178][  T157]  ksys_write (fs/read_write.c:739)
[   10.840181][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   10.840182][  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)
[   10.840185][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.840188][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.840190][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.840193][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.840196][  T157] RIP: 0033:0x7fe6f0e2e54e
[   10.840199][  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
[   10.840201][  T157] RSP: 002b:00007fff772b0730 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   10.840204][  T157] RAX: ffffffffffffffda RBX: 00007fe6f0faf580 RCX: 00007fe6f0e2e54e
[   10.840211][  T157] RDX: 0000000000000025 RSI: 0000562f70710ff0 RDI: 0000000000000001
[   10.840212][  T157] RBP: 00007fff772b0740 R08: 0000000000000000 R09: 0000000000000000
[   10.840213][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025
[   10.840214][  T157] R13: 0000000000000025 R14: 0000562f70710ff0 R15: 0000000000000000
| [   11.920493][  T271] softirqs last disabled at (16109): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.920496][  T271] Preemption disabled at:
| [   11.920497][  T271] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.920506][  T271] Tainted: [W]=WARN
[   11.920507][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.920509][  T271] Call Trace:
[   11.920510][  T271]  <TASK>
[   11.920512][  T271]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.920517][  T271]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.920519][  T271]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.920524][  T271]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.920527][  T271]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.920532][  T271]  __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))
[   11.920534][  T271]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.920540][  T271]  ? 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)
[   11.920542][  T271]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.920545][  T271]  put_chars (drivers/char/virtio_console.c:1176)
[   11.920548][  T271]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.920549][  T271]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   11.920552][  T271]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.920555][  T271]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.920559][  T271]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.920562][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.920564][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.920568][  T271]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.920571][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.920574][  T271]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.920577][  T271]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.920581][  T271]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.920585][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.920587][  T271]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.920591][  T271]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.920594][  T271]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.920596][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.920601][  T271]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.920603][  T271]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.920605][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.920607][  T271]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.920610][  T271]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.920612][  T271]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.920615][  T271]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.920618][  T271]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.920621][  T271]  ? _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)
[   11.920627][  T271]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   11.920631][  T271]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   11.920635][  T271]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   11.920636][  T271]  ? idr_get_free (??:?)
[   11.920640][  T271]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   11.920643][  T271]  ? _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)
[   11.920646][  T271]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   11.920649][  T271]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.920650][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.920652][  T271]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   11.920657][  T271]  ? vprintk_default (kernel/printk/printk.c:2494)
[   11.920659][  T271]  new_sync_write (fs/read_write.c:595)
[   11.920664][  T271]  ? new_sync_read (./include/linux/ioprio.h:41)
[   11.920666][  T271]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.920673][  T271]  vfs_write (fs/read_write.c:687)
[   11.920677][  T271]  ksys_write (fs/read_write.c:739)
[   11.920680][  T271]  ? __ia32_sys_read (fs/read_write.c:723)
[   11.920682][  T271]  ? 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)
[   11.920684][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.920688][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.920690][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.920693][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.920695][  T271] RIP: 0033:0x7fe6f0e2e54e
[   11.920699][  T271] 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
[   11.920701][  T271] RSP: 002b:00007fff772b0130 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   11.920704][  T271] RAX: ffffffffffffffda RBX: 00007fe6f0faf580 RCX: 00007fe6f0e2e54e
[   11.920705][  T271] RDX: 0000000000000037 RSI: 0000562f70710ff0 RDI: 0000000000000001
[   11.920706][  T271] RBP: 00007fff772b0140 R08: 0000000000000000 R09: 0000000000000000
[   11.920707][  T271] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000037
[   11.920708][  T271] R13: 0000000000000037 R14: 0000562f70710ff0 R15: 0000000000000000
| [   12.930959][  T157] softirqs last disabled at (534396): 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))
| [   12.930961][  T157] Preemption disabled at:
| [   12.930962][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.930971][  T157] Tainted: [W]=WARN
[   12.930972][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.930974][  T157] Call Trace:
[   12.930976][  T157]  <TASK>
[   12.930977][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.930982][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.930984][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.930989][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.930992][  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)
[   12.930997][  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))
[   12.930999][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.931004][  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)
[   12.931007][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.931010][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   12.931012][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.931014][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.931017][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.931020][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.931024][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.931027][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.931028][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.931032][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.931035][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.931038][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.931042][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.931045][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.931049][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.931051][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.931055][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.931059][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.931060][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.931065][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.931067][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.931069][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.931071][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.931074][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.931076][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.931079][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.931082][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.931085][  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)
[   12.931091][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.931095][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.931099][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.931101][  T157]  ? idr_get_free (??:?)
[   12.931105][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.931108][  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)
[   12.931110][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.931113][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.931115][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.931117][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   12.931121][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.931124][  T157]  new_sync_write (fs/read_write.c:595)
[   12.931128][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.931130][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.931137][  T157]  vfs_write (fs/read_write.c:687)
[   12.931141][  T157]  ksys_write (fs/read_write.c:739)
[   12.931144][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.931146][  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)
[   12.931148][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.931152][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.931154][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.931157][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.931160][  T157] RIP: 0033:0x7fe6f0e2e54e
[   12.931163][  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
[   12.931165][  T157] RSP: 002b:00007fff772b0730 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.931168][  T157] RAX: ffffffffffffffda RBX: 00007fe6f0faf580 RCX: 00007fe6f0e2e54e
[   12.931169][  T157] RDX: 0000000000000027 RSI: 0000562f70710ff0 RDI: 0000000000000001
[   12.931171][  T157] RBP: 00007fff772b0740 R08: 0000000000000000 R09: 0000000000000000
[   12.931171][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027
[   12.931172][  T157] R13: 0000000000000027 R14: 0000562f70710ff0 R15: 0000000000000000
| [   13.951507][  T157] softirqs last disabled at (695536): restore_fpregs_from_user (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/signal.c:277 (discriminator 2))
| [   13.951510][  T157] Preemption disabled at:
| [   13.951511][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.951520][  T157] Tainted: [W]=WARN
[   13.951521][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.951523][  T157] Call Trace:
[   13.951524][  T157]  <TASK>
[   13.951526][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.951531][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.951533][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.951537][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.951541][  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)
[   13.951545][  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))
[   13.951548][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.951553][  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)
[   13.951556][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.951558][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   13.951561][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.951563][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.951566][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.951569][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.951573][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.951575][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.951577][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.951581][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.951584][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.951586][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.951590][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.951593][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.951597][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.951599][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.951603][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.951607][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.951608][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.951613][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.951615][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.951617][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.951619][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.951622][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.951624][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.951627][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.951630][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.951633][  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)
[   13.951639][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.951643][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.951646][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.951648][  T157]  ? idr_get_free (??:?)
[   13.951652][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.951655][  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)
[   13.951658][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.951660][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.951662][  T157]  ? handle_pte_fault (mm/memory.c:6582)
[   13.951667][  T157]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   13.951669][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.951671][  T157]  new_sync_write (fs/read_write.c:595)
[   13.951676][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.951677][  T157]  ? lock_vma_under_rcu (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) mm/mmap_lock.c:329 (discriminator 2))
[   13.951685][  T157]  vfs_write (fs/read_write.c:687)
[   13.951690][  T157]  ksys_write (fs/read_write.c:739)
[   13.951692][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.951695][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.951697][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.951700][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.951702][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.951705][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.951707][  T157] RIP: 0033:0x7fe6f0e2e54e
[   13.951711][  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
[   13.951713][  T157] RSP: 002b:00007fff772b0730 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.951716][  T157] RAX: ffffffffffffffda RBX: 00007fe6f0faf580 RCX: 00007fe6f0e2e54e
[   13.951718][  T157] RDX: 0000000000000027 RSI: 0000562f70710ff0 RDI: 0000000000000001
[   13.951719][  T157] RBP: 00007fff772b0740 R08: 0000000000000000 R09: 0000000000000000
[   13.951720][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000027


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