======================================
| [   10.462026][  T170] softirqs last disabled at (32723): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.462029][  T170] Preemption disabled at:
| [   10.462030][  T170] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.462041][  T170] Tainted: [W]=WARN
[   10.462042][  T170] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.462044][  T170] Call Trace:
[   10.462046][  T170]  <TASK>
[   10.462048][  T170]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.462054][  T170]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.462056][  T170]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.462061][  T170]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.462066][  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)
[   10.462072][  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))
[   10.462074][  T170]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.462082][  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)
[   10.462084][  T170]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.462089][  T170]  put_chars (drivers/char/virtio_console.c:1176)
[   10.462092][  T170]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.462096][  T170]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.462103][  T170]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.462111][  T170]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.462114][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.462119][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.462124][  T170]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.462129][  T170]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.462135][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.462138][  T170]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.462143][  T170]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.462149][  T170]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.462151][  T170]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.462158][  T170]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.462162][  T170]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.462164][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.462166][  T170]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.462171][  T170]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.462173][  T170]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.462177][  T170]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.462182][  T170]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.462184][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.462189][  T170]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.462191][  T170]  ? fast_dput (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) fs/dcache.c:948 (discriminator 2))
[   10.462197][  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
[   10.462202][  T170]  _printk (kernel/printk/printk.c:2504)
[   10.462207][  T170]  ? snapshot_read.cold (user.c:?)
[   10.462211][  T170]  ? __up_write (kernel/locking/rwsem.c:1422 (discriminator 1))
[   10.462215][  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
[   10.462220][  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)
[   10.462226][  T170] init_netconsole (drivers/net/netconsole.c:1286) netconsole
[   10.462230][  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
[   10.462240][  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
[   10.462244][  T170]  do_one_initcall (init/main.c:1357)
[   10.462249][  T170]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.462256][  T170]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.462259][  T170]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.462266][  T170]  do_init_module (kernel/module/main.c:3117)
[   10.462271][  T170]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.462276][  T170]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.462280][  T170]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.462286][  T170]  load_module (kernel/module/main.c:3593)
[   10.462295][  T170]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.462303][  T170]  ? __ia32_sys_fsconfig (??:?)
[   10.462308][  T170]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.462312][  T170]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.462319][  T170]  init_module_from_file (kernel/module/main.c:3790)
[   10.462324][  T170]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.462336][  T170]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.462340][  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)
[   10.462344][  T170]  idempotent_init_module (kernel/module/main.c:3802)
[   10.462349][  T170]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.462358][  T170]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.462361][  T170]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.462368][  T170]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.462371][  T170]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.462376][  T170]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.462378][  T170]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.462382][  T170]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.462385][  T170] RIP: 0033:0x7f0cff86937d
[   10.462388][  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
[   10.462391][  T170] RSP: 002b:00007ffe48d0a7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.462394][  T170] RAX: ffffffffffffffda RBX: 00005556d597a700 RCX: 00007f0cff86937d
[   10.462396][  T170] RDX: 0000000000000000 RSI: 00005556c40a0ffd RDI: 0000000000000005
[   10.462397][  T170] RBP: 00007ffe48d0a860 R08: 0000000000000000 R09: 0000000000000000
[   10.462398][  T170] R10: 0000000000000000 R11: 0000000000000246 R12: 00005556c40a0ffd
[   10.462399][  T170] R13: 00005556d597a810 R14: 0000000000040000 R15: 0000000000000000
| [   12.509966][  T158] softirqs last disabled at (135690): 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))
| [   12.509970][  T158] Preemption disabled at:
| [   12.509971][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.509983][  T158] Tainted: [W]=WARN
[   12.509985][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.509987][  T158] Call Trace:
[   12.509989][  T158]  <TASK>
[   12.509992][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.509998][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.510001][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.510007][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.510013][  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)
[   12.510020][  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))
[   12.510024][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.510032][  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)
[   12.510036][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.510041][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   12.510046][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.510048][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   12.510054][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.510058][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.510065][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.510069][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510071][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510078][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.510084][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510088][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.510095][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.510101][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.510108][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510111][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.510118][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.510124][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.510127][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510135][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.510139][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.510142][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510145][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.510151][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.510154][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.510159][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.510165][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.510170][  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)
[   12.510178][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   12.510184][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   12.510190][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   12.510193][  T158]  ? idr_get_free (??:?)
[   12.510198][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   12.510203][  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)
[   12.510208][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   12.510212][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.510215][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510218][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   12.510224][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   12.510228][  T158]  new_sync_write (fs/read_write.c:595)
[   12.510236][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   12.510238][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.510252][  T158]  vfs_write (fs/read_write.c:687)
[   12.510260][  T158]  ksys_write (fs/read_write.c:739)
[   12.510265][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   12.510268][  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)
[   12.510272][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510278][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.510281][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.510286][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.510289][  T158] RIP: 0033:0x7f06c301e54e
[   12.510294][  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
[   12.510301][  T158] RSP: 002b:00007ffcb08ce5b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   12.510306][  T158] RAX: ffffffffffffffda RBX: 00007f06c319f580 RCX: 00007f06c301e54e
[   12.510308][  T158] RDX: 0000000000000025 RSI: 0000561ccadfaff0 RDI: 0000000000000001
[   12.510310][  T158] RBP: 00007ffcb08ce5c0 R08: 0000000000000000 R09: 0000000000000000
[   12.510311][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000025
[   12.510313][  T158] R13: 0000000000000025 R14: 0000561ccadfaff0 R15: 0000000000000000
| [   13.510225][  T158] softirqs last disabled at (340258): 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))
| [   13.510227][  T158] Preemption disabled at:
| [   13.510228][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.510237][  T158] Tainted: [W]=WARN
[   13.510238][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.510240][  T158] Call Trace:
[   13.510242][  T158]  <TASK>
[   13.510244][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.510249][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.510251][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.510256][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.510261][  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)
[   13.510265][  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))
[   13.510267][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.510274][  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)
[   13.510276][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.510279][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   13.510282][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.510283][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   13.510286][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.510289][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.510293][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.510296][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.510301][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.510305][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.510309][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.510312][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.510315][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.510319][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.510323][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.510325][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.510329][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.510332][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.510334][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.510339][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.510342][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.510343][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.510346][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.510349][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.510351][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.510354][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.510358][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.510361][  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)
[   13.510367][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   13.510370][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   13.510374][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   13.510376][  T158]  ? idr_get_free (??:?)
[   13.510380][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   13.510383][  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)
[   13.510385][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   13.510388][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.510390][  T158]  ? handle_pte_fault (mm/memory.c:6582)
[   13.510395][  T158]  ? do_numa_page.isra.0 (mm/memory.c:6319 (discriminator 1))
[   13.510397][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   13.510399][  T158]  new_sync_write (fs/read_write.c:595)
[   13.510404][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   13.510405][  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))
[   13.510413][  T158]  vfs_write (fs/read_write.c:687)
[   13.510418][  T158]  ksys_write (fs/read_write.c:739)
[   13.510420][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   13.510423][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.510425][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.510428][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.510430][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.510433][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.510436][  T158] RIP: 0033:0x7f06c301e54e
[   13.510439][  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
[   13.510442][  T158] RSP: 002b:00007ffcb08ce5b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   13.510445][  T158] RAX: ffffffffffffffda RBX: 00007f06c319f580 RCX: 00007f06c301e54e
[   13.510446][  T158] RDX: 0000000000000026 RSI: 0000561ccadfaff0 RDI: 0000000000000001
[   13.510447][  T158] RBP: 00007ffcb08ce5c0 R08: 0000000000000000 R09: 0000000000000000
[   13.510448][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000026
[   13.510449][  T158] R13: 0000000000000026 R14: 0000561ccadfaff0 R15: 0000000000000000
| [   14.511288][  T158] softirqs last disabled at (490279): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.511291][  T158] Preemption disabled at:
| [   14.511292][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.511303][  T158] Tainted: [W]=WARN
[   14.511305][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.511306][  T158] Call Trace:
[   14.511308][  T158]  <TASK>
[   14.511310][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.511315][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.511317][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.511322][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.511325][  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)
[   14.511330][  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))
[   14.511332][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.511338][  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)
[   14.511340][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.511343][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   14.511346][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.511348][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   14.511351][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.511354][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.511358][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.511361][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.511362][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.511367][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.511370][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.511373][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.511377][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.511380][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.511384][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.511387][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.511390][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.511394][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.511396][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.511400][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.511403][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.511404][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.511406][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.511410][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.511411][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.511414][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.511418][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.511421][  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)
[   14.511426][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   14.511430][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   14.511434][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   14.511436][  T158]  ? idr_get_free (??:?)
[   14.511439][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   14.511442][  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)
[   14.511445][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   14.511448][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.511450][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.511452][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   14.511456][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   14.511458][  T158]  new_sync_write (fs/read_write.c:595)
[   14.511463][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   14.511464][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.511472][  T158]  vfs_write (fs/read_write.c:687)
[   14.511476][  T158]  ksys_write (fs/read_write.c:739)
[   14.511479][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   14.511481][  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)
[   14.511483][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.511487][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.511489][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.511492][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.511495][  T158] RIP: 0033:0x7f06c301e54e
[   14.511498][  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
[   14.511500][  T158] RSP: 002b:00007ffcb08ce5b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   14.511503][  T158] RAX: ffffffffffffffda RBX: 00007f06c319f580 RCX: 00007f06c301e54e
[   14.511505][  T158] RDX: 0000000000000026 RSI: 0000561ccadfaff0 RDI: 0000000000000001
[   14.511506][  T158] RBP: 00007ffcb08ce5c0 R08: 0000000000000000 R09: 0000000000000000
[   14.511507][  T158] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000026
[   14.511508][  T158] R13: 0000000000000026 R14: 0000561ccadfaff0 R15: 0000000000000000
| [   15.510408][  T158] softirqs last disabled at (650449): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   15.510411][  T158] Preemption disabled at:
| [   15.510411][  T158] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.510421][  T158] Tainted: [W]=WARN
[   15.510422][  T158] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.510424][  T158] Call Trace:
[   15.510425][  T158]  <TASK>
[   15.510427][  T158]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.510432][  T158]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.510434][  T158]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.510439][  T158]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.510443][  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)
[   15.510447][  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))
[   15.510449][  T158]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.510455][  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)
[   15.510458][  T158]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.510460][  T158]  put_chars (drivers/char/virtio_console.c:1176)
[   15.510463][  T158]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.510464][  T158]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   15.510468][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.510471][  T158]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.510475][  T158]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.510477][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.510479][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.510483][  T158]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.510486][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.510489][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.510492][  T158]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.510496][  T158]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.510500][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.510502][  T158]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.510505][  T158]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.510509][  T158]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.510511][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.510516][  T158]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.510518][  T158]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.510520][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.510522][  T158]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.510525][  T158]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.510527][  T158]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.510530][  T158]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.510533][  T158]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.510536][  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)
[   15.510542][  T158]  devkmsg_emit.constprop.0 (kernel/printk/printk.c:733)
[   15.510546][  T158]  ? vprintk_emit.cold (kernel/printk/printk.c:2449)
[   15.510549][  T158]  ? __kmalloc_noprof (mm/slub.c:5415 mm/slub.c:5439)
[   15.510551][  T158]  ? idr_get_free (??:?)
[   15.510555][  T158]  ? devkmsg_write (./include/linux/slab.h:995 kernel/printk/printk.c:762)
[   15.510558][  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)
[   15.510560][  T158]  devkmsg_write.cold (kernel/printk/printk.c:796)
[   15.510563][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.510565][  T158]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.510567][  T158]  ? vfs_lock_file (./include/linux/fs.h:1348)
[   15.510571][  T158]  ? vprintk_default (kernel/printk/printk.c:2494)
[   15.510576][  T158]  new_sync_write (fs/read_write.c:595)
[   15.510581][  T158]  ? new_sync_read (./include/linux/ioprio.h:41)
[   15.510583][  T158]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.510591][  T158]  vfs_write (fs/read_write.c:687)
[   15.510595][  T158]  ksys_write (fs/read_write.c:739)
[   15.510598][  T158]  ? __ia32_sys_read (fs/read_write.c:723)
[   15.510599][  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)
[   15.510602][  T158]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.510605][  T158]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.510607][  T158]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.510610][  T158]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.510613][  T158] RIP: 0033:0x7f06c301e54e
[   15.510616][  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
[   15.510618][  T158] RSP: 002b:00007ffcb08ce5b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
[   15.510621][  T158] RAX: ffffffffffffffda RBX: 00007f06c319f580 RCX: 00007f06c301e54e
[   15.510623][  T158] RDX: 0000000000000027 RSI: 0000561ccadfaff0 RDI: 0000000000000001
[   15.510624][  T158] RBP: 00007ffcb08ce5c0 R08: 0000000000000000 R09: 0000000000000000
[   15.510625][  T158] 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