======================================
| [    9.232563][  T170] softirqs last disabled at (29345): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.232566][  T170] Preemption disabled at:
| [    9.232566][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [    9.232576][  T170] Tainted: [W]=WARN
[    9.232576][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.232578][  T170] Call Trace:
[    9.232579][  T170]  <TASK>
[    9.232581][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.232586][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    9.232588][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.232593][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.232597][  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)
[    9.232601][  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))
[    9.232603][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.232609][  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)
[    9.232611][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.232614][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[    9.232617][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.232620][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.232625][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.232631][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.232633][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.232636][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.232640][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.232644][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.232648][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.232650][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.232653][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.232657][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.232659][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.232663][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.232666][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.232668][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.232670][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.232673][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.232674][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.232677][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.232681][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.232683][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.232689][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.232691][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[    9.232695][  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
[    9.232700][  T170]  _printk (kernel/printk/printk.c:2504)
[    9.232703][  T170]  ? snapshot_read.cold (user.c:?)
[    9.232706][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[    9.232709][  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
[    9.232713][  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)
[    9.232718][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[    9.232721][  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
[    9.232728][  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
[    9.232731][  T170]  do_one_initcall (init/main.c:1357)
[    9.232734][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    9.232739][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    9.232742][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    9.232747][  T170]  do_init_module (kernel/module/main.c:3117)
[    9.232750][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    9.232755][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    9.232758][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    9.232761][  T170]  load_module (kernel/module/main.c:3593)
[    9.232768][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    9.232772][  T170]  ? __ia32_sys_fsconfig (??:?)
[    9.232775][  T170]  ? ovl_real_file (fs/overlayfs/file.c:195)
[    9.232778][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[    9.232780][  T170]  ? backing_file_read_iter (fs/backing-file.c:211)
[    9.232784][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.232787][  T170]  init_module_from_file (kernel/module/main.c:3790)
[    9.232791][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    9.232799][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.232802][  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)
[    9.232805][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[    9.232808][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[    9.232814][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.232816][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    9.232822][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    9.232824][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    9.232828][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.232830][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.232832][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.232835][  T170] RIP: 0033:0x7fadf763b37d
[    9.232838][  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
[    9.232840][  T170] RSP: 002b:00007fff4c9f0328 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    9.232843][  T170] RAX: ffffffffffffffda RBX: 00005555fcc8c700 RCX: 00007fadf763b37d
[    9.232844][  T170] RDX: 0000000000000000 RSI: 00005555dc675ffd RDI: 0000000000000005
[    9.232845][  T170] RBP: 00007fff4c9f03c0 R08: 0000000000000000 R09: 0000000000000000
[    9.232846][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 00005555dc675ffd
[    9.232847][  T170] R13: 00005555fcc8c810 R14: 0000000000040000 R15: 0000000000000000
| [   12.368723][  T158] softirqs last disabled at (149134): 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))
| [   12.368726][  T158] Preemption disabled at:
| [   12.368727][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.368736][  T158] Tainted: [W]=WARN
[   12.368737][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.368739][  T158] Call Trace:
[   12.368741][  T158]  <TASK>
[   12.368742][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.368747][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.368749][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.368754][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.368758][  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)
[   12.368763][  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))
[   12.368765][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.368771][  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)
[   12.368773][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.368776][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   12.368779][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.368780][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.368784][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.368787][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.368791][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.368794][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.368795][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.368800][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.368803][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.368806][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.368809][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.368813][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.368817][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.368819][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.368823][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.368827][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.368829][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.368833][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.368836][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.368838][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.368840][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.368843][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.368845][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.368848][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.368851][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.368854][  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)
[   12.368860][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.368864][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.368868][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.368869][  T158]  ? idr_get_free (??:?)
[   12.368873][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.368876][  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)
[   12.368879][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.368882][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.368883][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.368885][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   12.368890][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.368892][  T158]  new_sync_write (fs/read_write.c:595)
[   12.368897][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.368899][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.368906][  T158]  vfs_write (fs/read_write.c:687)
[   12.368911][  T158]  ksys_write (fs/read_write.c:739)
[   12.368914][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.368916][  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)
[   12.368918][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.368922][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.368924][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.368927][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.368930][  T158] RIP: 0033:0x7f523111a54e
[   12.368934][  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
[   12.368936][  T158] RSP: 002b:00007fff79a34cf0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.368939][  T158] RAX: ffffffffffffffda RBX: 00007f523129b580 RCX: 00007f523111a54e
[   12.368941][  T158] RDX: 0000000000000023 RSI: 000055fa5d6b8ab0 RDI: 0000000000000001
[   12.368942][  T158] RBP: 00007fff79a34d00 R08: 0000000000000000 R09: 0000000000000000
[   12.368943][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   12.368944][  T158] R13: 0000000000000023 R14: 000055fa5d6b8ab0 R15: 0000000000000000
| [   15.949080][  T158] softirqs last disabled at (258666): 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))
| [   15.949083][  T158] Preemption disabled at:
| [   15.949084][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.949093][  T158] Tainted: [W]=WARN
[   15.949094][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.949097][  T158] Call Trace:
[   15.949098][  T158]  <TASK>
[   15.949100][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.949105][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.949108][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.949112][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.949116][  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)
[   15.949121][  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))
[   15.949123][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.949129][  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)
[   15.949131][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.949135][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   15.949138][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.949139][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.949142][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.949146][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.949150][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.949153][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.949155][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.949159][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.949162][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.949165][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.949169][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.949173][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.949177][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.949179][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.949183][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.949187][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.949188][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.949193][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.949196][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.949198][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.949200][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.949203][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.949205][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.949208][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.949212][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.949215][  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)
[   15.949220][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.949224][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.949228][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.949230][  T158]  ? idr_get_free (??:?)
[   15.949234][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.949237][  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)
[   15.949240][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.949243][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.949244][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.949246][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   15.949251][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.949253][  T158]  new_sync_write (fs/read_write.c:595)
[   15.949258][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.949260][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.949268][  T158]  vfs_write (fs/read_write.c:687)
[   15.949272][  T158]  ksys_write (fs/read_write.c:739)
[   15.949275][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.949277][  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)
[   15.949280][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.949283][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.949285][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.949288][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.949291][  T158] RIP: 0033:0x7f523111a54e
[   15.949295][  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
[   15.949297][  T158] RSP: 002b:00007fff79a34cf0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.949301][  T158] RAX: ffffffffffffffda RBX: 00007f523129b580 RCX: 00007f523111a54e
[   15.949302][  T158] RDX: 0000000000000023 RSI: 000055fa5d6b8ab0 RDI: 0000000000000001
[   15.949303][  T158] RBP: 00007fff79a34d00 R08: 0000000000000000 R09: 0000000000000000
[   15.949304][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   15.949305][  T158] R13: 0000000000000023 R14: 000055fa5d6b8ab0 R15: 0000000000000000
| [   19.491165][  T158] softirqs last disabled at (370840): 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))
| [   19.491167][  T158] Preemption disabled at:
| [   19.491168][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.491177][  T158] Tainted: [W]=WARN
[   19.491178][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.491180][  T158] Call Trace:
[   19.491182][  T158]  <TASK>
[   19.491184][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.491189][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.491191][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.491196][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.491200][  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)
[   19.491205][  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))
[   19.491207][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.491212][  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)
[   19.491215][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.491218][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   19.491221][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.491222][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   19.491226][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.491229][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.491233][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.491236][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.491237][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.491241][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.491244][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.491247][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.491251][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.491254][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.491259][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.491261][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.491264][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.491268][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.491270][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.491275][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.491277][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.491279][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.491281][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.491285][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.491286][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.491289][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.491293][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.491296][  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)
[   19.491301][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   19.491305][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   19.491309][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   19.491311][  T158]  ? idr_get_free (??:?)
[   19.491314][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   19.491317][  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)
[   19.491320][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   19.491323][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.491325][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.491327][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   19.491331][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   19.491334][  T158]  new_sync_write (fs/read_write.c:595)
[   19.491338][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   19.491340][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.491348][  T158]  vfs_write (fs/read_write.c:687)
[   19.491352][  T158]  ksys_write (fs/read_write.c:739)
[   19.491355][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   19.491356][  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)
[   19.491359][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.491362][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.491365][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.491368][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.491370][  T158] RIP: 0033:0x7f523111a54e
[   19.491374][  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
[   19.491377][  T158] RSP: 002b:00007fff79a34cf0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   19.491380][  T158] RAX: ffffffffffffffda RBX: 00007f523129b580 RCX: 00007f523111a54e
[   19.491381][  T158] RDX: 0000000000000023 RSI: 000055fa5d6b8ab0 RDI: 0000000000000001
[   19.491382][  T158] RBP: 00007fff79a34d00 R08: 0000000000000000 R09: 0000000000000000
[   19.491383][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   19.491384][  T158] R13: 0000000000000023 R14: 000055fa5d6b8ab0 R15: 0000000000000000
| [   23.041753][  T158] softirqs last disabled at (481022): 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))
| [   23.041755][  T158] Preemption disabled at:
| [   23.041756][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.041766][  T158] Tainted: [W]=WARN
[   23.041767][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.041769][  T158] Call Trace:
[   23.041771][  T158]  <TASK>
[   23.041772][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.041779][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.041781][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.041785][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.041789][  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)
[   23.041794][  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))
[   23.041796][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.041801][  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)
[   23.041804][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.041807][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   23.041810][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.041811][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   23.041814][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.041818][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.041822][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.041825][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.041826][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.041830][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.041834][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.041837][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.041840][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.041844][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.041848][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.041850][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.041854][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.041858][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.041860][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.041865][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.041868][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.041869][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.041871][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   23.041875][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.041877][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.041880][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.041883][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.041886][  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)
[   23.041892][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   23.041896][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   23.041900][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   23.041902][  T158]  ? idr_get_free (??:?)
[   23.041905][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   23.041908][  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)
[   23.041911][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   23.041914][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   23.041915][  T158]  ? handle_pte_fault (mm/memory.c:6582)
[   23.041921][  T158]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   23.041923][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   23.041926][  T158]  new_sync_write (fs/read_write.c:595)
[   23.041931][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   23.041932][  T158]  ? 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))
[   23.041941][  T158]  vfs_write (fs/read_write.c:687)
[   23.041945][  T158]  ksys_write (fs/read_write.c:739)
[   23.041948][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   23.041950][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.041952][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.041956][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.041958][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.041961][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.041963][  T158] RIP: 0033:0x7f523111a54e
[   23.041968][  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
[   23.041970][  T158] RSP: 002b:00007fff79a34cf0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   23.041973][  T158] RAX: ffffffffffffffda RBX: 00007f523129b580 RCX: 00007f523111a54e
[   23.041974][  T158] RDX: 0000000000000023 RSI: 000055fa5d6b8ab0 RDI: 0000000000000001
[   23.041975][  T158] RBP: 00007fff79a34d00 R08: 0000000000000000 R09: 0000000000000000
[   23.041976][  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