======================================
| [   10.204760][  T169] softirqs last disabled at (30301): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.204763][  T169] Preemption disabled at:
| [   10.204763][  T169] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.204772][  T169] Tainted: [W]=WARN
[   10.204773][  T169] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.204775][  T169] Call Trace:
[   10.204777][  T169]  <TASK>
[   10.204778][  T169]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.204784][  T169]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.204786][  T169]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.204790][  T169]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.204794][  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)
[   10.204799][  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))
[   10.204801][  T169]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.204807][  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)
[   10.204809][  T169]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.204812][  T169]  put_chars (drivers/char/virtio_console.c:1176)
[   10.204815][  T169]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.204818][  T169]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.204823][  T169]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.204829][  T169]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.204831][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.204835][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.204839][  T169]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.204842][  T169]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.204846][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.204849][  T169]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.204852][  T169]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.204856][  T169]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.204858][  T169]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.204862][  T169]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.204865][  T169]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.204867][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.204869][  T169]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.204872][  T169]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.204873][  T169]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.204876][  T169]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.204880][  T169]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.204882][  T169]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.204885][  T169]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.204887][  T169]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   10.204891][  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
[   10.204895][  T169]  _printk (kernel/printk/printk.c:2504)
[   10.204899][  T169]  ? snapshot_read.cold (user.c:?)
[   10.204902][  T169]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   10.204905][  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
[   10.204909][  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)
[   10.204914][  T169] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   10.204917][  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
[   10.204924][  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
[   10.204926][  T169]  do_one_initcall (init/main.c:1357)
[   10.204930][  T169]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.204935][  T169]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.204938][  T169]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.204943][  T169]  do_init_module (kernel/module/main.c:3117)
[   10.204947][  T169]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.204951][  T169]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.204954][  T169]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.204958][  T169]  load_module (kernel/module/main.c:3593)
[   10.204964][  T169]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.204968][  T169]  ? __ia32_sys_fsconfig (??:?)
[   10.204971][  T169]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.204975][  T169]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.204979][  T169]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.204983][  T169]  init_module_from_file (kernel/module/main.c:3790)
[   10.204986][  T169]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.204994][  T169]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.204997][  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)
[   10.205000][  T169]  idempotent_init_module (kernel/module/main.c:3802)
[   10.205004][  T169]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.205010][  T169]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.205012][  T169]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.205018][  T169]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.205020][  T169]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.205024][  T169]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.205026][  T169]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.205029][  T169]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.205031][  T169] RIP: 0033:0x7f200f27237d
[   10.205034][  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
[   10.205036][  T169] RSP: 002b:00007ffd8cbe56e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.205039][  T169] RAX: ffffffffffffffda RBX: 00005652e1406700 RCX: 00007f200f27237d
[   10.205040][  T169] RDX: 0000000000000000 RSI: 00005652c3f93ffd RDI: 0000000000000005
[   10.205041][  T169] RBP: 00007ffd8cbe5780 R08: 0000000000000000 R09: 0000000000000000
[   10.205042][  T169] R10: 0000000000000000 R11: 0000000000000246 R12: 00005652c3f93ffd
[   10.205043][  T169] R13: 00005652e1406810 R14: 0000000000040000 R15: 0000000000000000
| [   13.462678][  T157] softirqs last disabled at (123301): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.462681][  T157] Preemption disabled at:
| [   13.462682][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.462692][  T157] Tainted: [W]=WARN
[   13.462693][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.462695][  T157] Call Trace:
[   13.462697][  T157]  <TASK>
[   13.462699][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.462704][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.462706][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.462711][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.462715][  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)
[   13.462719][  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))
[   13.462721][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.462727][  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)
[   13.462730][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.462733][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   13.462736][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.462737][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.462740][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.462743][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.462748][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.462750][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.462752][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.462756][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.462759][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.462762][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.462766][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.462770][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.462774][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.462776][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.462780][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.462784][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.462785][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.462790][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.462793][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.462795][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.462797][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.462801][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.462802][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.462805][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.462809][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.462812][  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)
[   13.462818][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.462822][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.462826][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.462828][  T157]  ? idr_get_free (??:?)
[   13.462832][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.462835][  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)
[   13.462837][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.462840][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.462842][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.462844][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   13.462849][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.462851][  T157]  new_sync_write (fs/read_write.c:595)
[   13.462856][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.462857][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.462865][  T157]  vfs_write (fs/read_write.c:687)
[   13.462869][  T157]  ksys_write (fs/read_write.c:739)
[   13.462872][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.462874][  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)
[   13.462876][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.462880][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.462882][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.462885][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.462888][  T157] RIP: 0033:0x7f7b6619a54e
[   13.462892][  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
[   13.462894][  T157] RSP: 002b:00007ffde4ddde60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.462897][  T157] RAX: ffffffffffffffda RBX: 00007f7b6631b580 RCX: 00007f7b6619a54e
[   13.462898][  T157] RDX: 0000000000000023 RSI: 00005556c5b13ab0 RDI: 0000000000000001
[   13.462899][  T157] RBP: 00007ffde4ddde70 R08: 0000000000000000 R09: 0000000000000000
[   13.462900][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   13.462901][  T157] R13: 0000000000000023 R14: 00005556c5b13ab0 R15: 0000000000000000
| [   17.551377][  T157] softirqs last disabled at (259262): 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))
| [   17.551379][  T157] Preemption disabled at:
| [   17.551380][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.551390][  T157] Tainted: [W]=WARN
[   17.551391][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.551393][  T157] Call Trace:
[   17.551394][  T157]  <TASK>
[   17.551396][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.551402][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.551404][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.551408][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.551412][  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)
[   17.551417][  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))
[   17.551419][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.551424][  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)
[   17.551427][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.551430][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   17.551436][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.551438][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   17.551441][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.551445][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.551449][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.551452][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.551453][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.551457][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.551460][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.551463][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.551467][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.551470][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.551474][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.551476][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.551480][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.551484][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.551485][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.551490][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.551493][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.551494][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.551496][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.551500][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.551501][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.551504][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.551507][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.551510][  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)
[   17.551516][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   17.551520][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   17.551524][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   17.551525][  T157]  ? idr_get_free (??:?)
[   17.551529][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   17.551532][  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)
[   17.551534][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   17.551537][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.551539][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.551541][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   17.551545][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   17.551547][  T157]  new_sync_write (fs/read_write.c:595)
[   17.551552][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   17.551554][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.551561][  T157]  vfs_write (fs/read_write.c:687)
[   17.551566][  T157]  ksys_write (fs/read_write.c:739)
[   17.551568][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   17.551570][  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)
[   17.551573][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.551576][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.551578][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.551581][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.551584][  T157] RIP: 0033:0x7f7b6619a54e
[   17.551588][  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
[   17.551589][  T157] RSP: 002b:00007ffde4ddde60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   17.551593][  T157] RAX: ffffffffffffffda RBX: 00007f7b6631b580 RCX: 00007f7b6619a54e
[   17.551594][  T157] RDX: 0000000000000023 RSI: 00005556c5b13ab0 RDI: 0000000000000001
[   17.551595][  T157] RBP: 00007ffde4ddde70 R08: 0000000000000000 R09: 0000000000000000
[   17.551596][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   17.551597][  T157] R13: 0000000000000023 R14: 00005556c5b13ab0 R15: 0000000000000000
| [   21.295603][  T157] softirqs last disabled at (388735): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.295606][  T157] Preemption disabled at:
| [   21.295607][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.295617][  T157] Tainted: [W]=WARN
[   21.295618][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.295620][  T157] Call Trace:
[   21.295627][  T157]  <TASK>
[   21.295629][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.295635][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.295637][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.295641][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.295645][  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)
[   21.295650][  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))
[   21.295652][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.295658][  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)
[   21.295660][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.295663][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   21.295666][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.295668][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   21.295671][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.295674][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.295678][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.295681][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.295683][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.295687][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.295690][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.295693][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.295697][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.295700][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.295704][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.295707][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.295710][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.295714][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.295716][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.295721][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.295724][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.295725][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.295727][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.295731][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.295732][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.295735][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.295739][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.295742][  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)
[   21.295747][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   21.295752][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   21.295756][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   21.295757][  T157]  ? idr_get_free (??:?)
[   21.295761][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   21.295764][  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)
[   21.295767][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   21.295770][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.295772][  T157]  ? handle_pte_fault (mm/memory.c:6582)
[   21.295776][  T157]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   21.295779][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   21.295781][  T157]  new_sync_write (fs/read_write.c:595)
[   21.295786][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   21.295788][  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))
[   21.295796][  T157]  vfs_write (fs/read_write.c:687)
[   21.295801][  T157]  ksys_write (fs/read_write.c:739)
[   21.295804][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   21.295806][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.295809][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.295812][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.295814][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.295818][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.295820][  T157] RIP: 0033:0x7f7b6619a54e
[   21.295825][  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
[   21.295827][  T157] RSP: 002b:00007ffde4ddde60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   21.295830][  T157] RAX: ffffffffffffffda RBX: 00007f7b6631b580 RCX: 00007f7b6619a54e
[   21.295832][  T157] RDX: 0000000000000023 RSI: 00005556c5b13ab0 RDI: 0000000000000001
[   21.295833][  T157] RBP: 00007ffde4ddde70 R08: 0000000000000000 R09: 0000000000000000
[   21.295834][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023
[   21.295835][  T157] R13: 0000000000000023 R14: 00005556c5b13ab0 R15: 0000000000000000
| [   24.953892][  T157] softirqs last disabled at (501038): 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))
| [   24.953895][  T157] Preemption disabled at:
| [   24.953895][  T157] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.953905][  T157] Tainted: [W]=WARN
[   24.953906][  T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.953908][  T157] Call Trace:
[   24.953910][  T157]  <TASK>
[   24.953911][  T157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.953917][  T157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.953919][  T157]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.953923][  T157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.953927][  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)
[   24.953932][  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))
[   24.953934][  T157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.953940][  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)
[   24.953942][  T157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.953946][  T157]  put_chars (drivers/char/virtio_console.c:1176)
[   24.953949][  T157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.953950][  T157]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   24.953953][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.953956][  T157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.953960][  T157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.953964][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.953965][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.953969][  T157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.953972][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.953975][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.953979][  T157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.953983][  T157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.953987][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.953989][  T157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.953993][  T157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.953997][  T157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.953999][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.954003][  T157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.954006][  T157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.954008][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.954010][  T157]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.954014][  T157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.954015][  T157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.954018][  T157]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.954022][  T157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.954025][  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)
[   24.954031][  T157]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   24.954035][  T157]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   24.954039][  T157]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   24.954040][  T157]  ? idr_get_free (??:?)
[   24.954044][  T157]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   24.954047][  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)
[   24.954050][  T157]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   24.954053][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   24.954054][  T157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.954056][  T157]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   24.954061][  T157]  ? vprintk_default (kernel/printk/printk.c:2494)
[   24.954063][  T157]  new_sync_write (fs/read_write.c:595)
[   24.954068][  T157]  ? new_sync_read (./include/linux/ioprio.h:41)
[   24.954070][  T157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.954078][  T157]  vfs_write (fs/read_write.c:687)
[   24.954082][  T157]  ksys_write (fs/read_write.c:739)
[   24.954085][  T157]  ? __ia32_sys_read (fs/read_write.c:723)
[   24.954087][  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)
[   24.954089][  T157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.954093][  T157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.954095][  T157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.954098][  T157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.954101][  T157] RIP: 0033:0x7f7b6619a54e
[   24.954105][  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
[   24.954107][  T157] RSP: 002b:00007ffde4ddde60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   24.954110][  T157] RAX: ffffffffffffffda RBX: 00007f7b6631b580 RCX: 00007f7b6619a54e
[   24.954112][  T157] RDX: 0000000000000023 RSI: 00005556c5b13ab0 RDI: 0000000000000001
[   24.954113][  T157] RBP: 00007ffde4ddde70 R08: 0000000000000000 R09: 0000000000000000
[   24.954114][  T157] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000023


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