======================================
| [    8.791259][  T178] softirqs last disabled at (46313): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    8.791261][  T178] Preemption disabled at:
| [    8.791261][  T178] vprintk_emit (kernel/printk/printk.c:2471)
| [    8.791270][  T178] Tainted: [W]=WARN
[    8.791271][  T178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    8.791273][  T178] Call Trace:
[    8.791274][  T178]  <TASK>
[    8.791276][  T178]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    8.791281][  T178]  ? vprintk_emit (kernel/printk/printk.c:2471)
[    8.791283][  T178]  __might_resched.cold (kernel/sched/core.c:9234)
[    8.791288][  T178]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    8.791291][  T178]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    8.791296][  T178]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    8.791298][  T178]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.791304][  T178]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.791307][  T178]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    8.791310][  T178]  put_chars (drivers/char/virtio_console.c:1176)
[    8.791313][  T178]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    8.791315][  T178]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.791319][  T178]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[    8.791321][  T178]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    8.791326][  T178]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    8.791329][  T178]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.791333][  T178]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    8.791336][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.791341][  T178]  console_emit_next_record (kernel/printk/printk.c:3183)
[    8.791345][  T178]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    8.791346][  T178]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    8.791349][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.791351][  T178]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    8.791355][  T178]  console_flush_one_record (kernel/printk/printk.c:3268)
[    8.791359][  T178]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    8.791361][  T178]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    8.791366][  T178]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    8.791368][  T178]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    8.791370][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.791372][  T178]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    8.791376][  T178]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    8.791378][  T178]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    8.791381][  T178]  vprintk_emit (kernel/printk/printk.c:2479)
[    8.791385][  T178]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    8.791390][  T178]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[    8.791393][  T178]  _printk (kernel/printk/printk.c:2504)
[    8.791397][  T178]  ? snapshot_read.cold (user.c:?)
[    8.791402][  T178]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[    8.791406][  T178] ppp_init (ppp_generic.mod.c:?) ppp_generic
[    8.791409][  T178]  do_one_initcall (init/main.c:1357)
[    8.791412][  T178]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[    8.791416][  T178]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[    8.791419][  T178]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[    8.791423][  T178]  do_init_module (kernel/module/main.c:3117)
[    8.791427][  T178]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[    8.791431][  T178]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[    8.791434][  T178]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[    8.791438][  T178]  load_module (kernel/module/main.c:3593)
[    8.791444][  T178]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[    8.791449][  T178]  ? backing_file_read_iter (fs/backing-file.c:211)
[    8.791453][  T178]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    8.791456][  T178]  init_module_from_file (kernel/module/main.c:3790)
[    8.791459][  T178]  ? __do_sys_init_module (kernel/module/main.c:3664)
[    8.791467][  T178]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    8.791470][  T178]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    8.791473][  T178]  idempotent_init_module (kernel/module/main.c:3802)
[    8.791477][  T178]  ? init_module_from_file (kernel/module/main.c:3791)
[    8.791483][  T178]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    8.791485][  T178]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[    8.791491][  T178]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[    8.791493][  T178]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[    8.791497][  T178]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    8.791499][  T178]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    8.791502][  T178]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    8.791504][  T178] RIP: 0033:0x7f7dfc1c037d
[    8.791507][  T178] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[    8.791509][  T178] RSP: 002b:00007ffed6c6ea98 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[    8.791511][  T178] RAX: ffffffffffffffda RBX: 0000555cd6ecfd20 RCX: 00007f7dfc1c037d
[    8.791513][  T178] RDX: 0000000000000000 RSI: 0000555cb086effd RDI: 0000000000000006
[    8.791513][  T178] RBP: 00007ffed6c6eb30 R08: 0000000000000000 R09: 0000000000000000
[    8.791514][  T178] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555cb086effd
[    8.791515][  T178] R13: 0000555cd6ecfcd0 R14: 0000000000040000 R15: 0000000000000000
| [   12.161983][  T192] softirqs last disabled at (22797): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.161985][  T192] Preemption disabled at:
| [   12.161986][  T192] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.161994][  T192] Tainted: [W]=WARN
[   12.161995][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.161997][  T192] Call Trace:
[   12.161998][  T192]  <TASK>
[   12.162000][  T192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.162005][  T192]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.162007][  T192]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.162011][  T192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.162015][  T192]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.162020][  T192]  __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))
[   12.162023][  T192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.162028][  T192]  ? 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)
[   12.162031][  T192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.162034][  T192]  put_chars (drivers/char/virtio_console.c:1176)
[   12.162037][  T192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.162039][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.162044][  T192]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.162046][  T192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.162051][  T192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.162053][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.162058][  T192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.162063][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.162067][  T192]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.162071][  T192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.162073][  T192]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.162076][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.162078][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.162082][  T192]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.162086][  T192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.162088][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.162092][  T192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.162095][  T192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.162097][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.162099][  T192]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.162102][  T192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.162104][  T192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.162107][  T192]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.162111][  T192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.162116][  T192]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   12.162120][  T192]  _printk (kernel/printk/printk.c:2504)
[   12.162123][  T192]  ? snapshot_read.cold (user.c:?)
[   12.162127][  T192]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   12.162129][  T192]  ? 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)
[   12.162131][  T192]  ? ppp_cleanup (drivers/net/ppp/ppp_generic.c:1603) ppp_generic
[   12.162134][  T192]  ? 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)
[   12.162137][  T192] bsdcomp_init (drivers/net/ppp/bsd_comp.c:297) bsd_comp
[   12.162139][  T192]  do_one_initcall (init/main.c:1357)
[   12.162143][  T192]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.162147][  T192]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.162150][  T192]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.162155][  T192]  do_init_module (kernel/module/main.c:3117)
[   12.162159][  T192]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.162162][  T192]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.162165][  T192]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.162169][  T192]  load_module (kernel/module/main.c:3593)
[   12.162176][  T192]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.162180][  T192]  ? __ia32_sys_fsconfig (??:?)
[   12.162182][  T192]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   12.162186][  T192]  ? backing_file_read_iter (fs/backing-file.c:211)
[   12.162189][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.162193][  T192]  init_module_from_file (kernel/module/main.c:3790)
[   12.162196][  T192]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.162204][  T192]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.162207][  T192]  ? 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)
[   12.162210][  T192]  idempotent_init_module (kernel/module/main.c:3802)
[   12.162213][  T192]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.162219][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.162221][  T192]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.162227][  T192]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.162229][  T192]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.162233][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.162235][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.162238][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.162240][  T192] RIP: 0033:0x7fad534a537d
[   12.162243][  T192] 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
[   12.162245][  T192] RSP: 002b:00007ffc1b4f6b58 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.162247][  T192] RAX: ffffffffffffffda RBX: 000055d2be82c810 RCX: 00007fad534a537d
[   12.162248][  T192] RDX: 0000000000000000 RSI: 000055d27f23dffd RDI: 0000000000000000
[   12.162249][  T192] RBP: 00007ffc1b4f6bf0 R08: 0000000000000000 R09: 0000000000000000
[   12.162250][  T192] R10: 0000000000000000 R11: 0000000000000246 R12: 000055d27f23dffd
[   12.162251][  T192] R13: 000055d2be82c9e0 R14: 0000000000040000 R15: 0000000000000000
| [   16.687386][  T218] softirqs last disabled at (842749): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   16.687388][  T218] Preemption disabled at:
| [   16.687389][  T218] 0x0
| [   16.687398][  T218] Tainted: [W]=WARN
[   16.687399][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.687401][  T218] Call Trace:
[   16.687402][  T218]  <TASK>
[   16.687404][  T218]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.687410][  T218]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.687415][  T218]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.687419][  T218]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.687423][  T218]  __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))
[   16.687426][  T218]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.687432][  T218]  ? 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)
[   16.687434][  T218]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.687437][  T218]  put_chars (drivers/char/virtio_console.c:1176)
[   16.687440][  T218]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   16.687442][  T218]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.687445][  T218]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.687449][  T218]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.687451][  T218]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.687455][  T218]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.687458][  T218]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.687460][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.687462][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.687465][  T218]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.687468][  T218]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.687471][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.687473][  T218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.687477][  T218]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.687480][  T218]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.687482][  T218]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   16.687485][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.687488][  T218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.687491][  T218]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.687495][  T218]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.687497][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.687502][  T218]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.687505][  T218]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.687507][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.687509][  T218]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.687513][  T218]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.687514][  T218]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.687518][  T218]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.687521][  T218]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.687525][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.687528][  T218]  _printk (kernel/printk/printk.c:2504)
[   16.687531][  T218]  ? snapshot_read.cold (user.c:?)
[   16.687534][  T218]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   16.687536][  T218]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   16.687540][  T218]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   16.687543][  T218]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   16.687547][  T218]  ? exit_notify (kernel/exit.c:780)
[   16.687552][  T218]  __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116)
[   16.687553][  T218]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61)
[   16.687556][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.687560][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.687562][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.687564][  T218] RIP: 0033:0x7ff99b42ec49
[   16.687567][  T218] Code: Unable to access opcode bytes at 0x7ff99b42ec1f.

Code starting with the faulting instruction
===========================================
[   16.687568][  T218] RSP: 002b:00007ff99abede60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
[   16.687570][  T218] RAX: ffffffffffffffda RBX: 00007ff99abee6c0 RCX: 00007ff99b42ec49
[   16.687571][  T218] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000
[   16.687572][  T218] RBP: 00007ff99abedf70 R08: 0000000000000001 R09: 00007ff99abee6c0
[   16.687573][  T218] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ff99a3ee000


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