======================================
| [   10.507144][  T188] softirqs last disabled at (39175): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.507146][  T188] Preemption disabled at:
| [   10.507147][  T188] 0x0
| [   10.507158][  T188] Tainted: [W]=WARN
[   10.507159][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.507160][  T188] Call Trace:
[   10.507162][  T188]  <TASK>
[   10.507164][  T188]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.507170][  T188]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.507174][  T188]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.507179][  T188]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.507184][  T188]  __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))
[   10.507186][  T188]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.507192][  T188]  ? 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)
[   10.507195][  T188]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.507198][  T188]  put_chars (drivers/char/virtio_console.c:1176)
[   10.507201][  T188]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.507203][  T188]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.507207][  T188]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.507212][  T188]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.507219][  T188]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.507221][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.507223][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.507227][  T188]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.507231][  T188]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.507233][  T188]  ? 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))
[   10.507236][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.507239][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.507243][  T188]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.507247][  T188]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.507249][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.507254][  T188]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.507257][  T188]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.507259][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.507261][  T188]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.507264][  T188]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.507266][  T188]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.507270][  T188]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.507273][  T188]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.507277][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.507281][  T188]  _printk (kernel/printk/printk.c:2504)
[   10.507285][  T188]  ? snapshot_read.cold (user.c:?)
[   10.507288][  T188]  ? 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)
[   10.507290][  T188]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.507294][  T188]  ? 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)
[   10.507297][  T188]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.507300][  T188]  ? exit_notify (kernel/exit.c:780)
[   10.507302][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.507305][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.507309][  T188]  do_group_exit (kernel/exit.c:1151)
[   10.507312][  T188]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.507314][  T188]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.507316][  T188]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.507319][  T188]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.507322][  T188]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.507325][  T188] RIP: 0033:0x7f053c17a1b8
[   10.507327][  T188] Code: Unable to access opcode bytes at 0x7f053c17a18e.

Code starting with the faulting instruction
===========================================
[   10.507328][  T188] RSP: 002b:00007ffd0c9d0a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.507331][  T188] RAX: ffffffffffffffda RBX: 00007f053c2aaf88 RCX: 00007f053c17a1b8
[   10.507332][  T188] RDX: 00007f053bec4fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.507333][  T188] RBP: 00007ffd0c9d0a70 R08: 0000000000000000 R09: 0000000000008010
[   10.507334][  T188] R10: 00007ffd0c9d0830 R11: 0000000000000246 R12: 0000000000000001
[   10.507334][  T188] R13: 0000000000000000 R14: 00007f053c2a9680 R15: 00007f053c2aafa0
| [   12.014377][  T251] softirqs last disabled at (19199): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.014379][  T251] Preemption disabled at:
| [   12.014379][  T251] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.014388][  T251] Tainted: [W]=WARN
[   12.014389][  T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.014391][  T251] Call Trace:
[   12.014393][  T251]  <TASK>
[   12.014394][  T251]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.014399][  T251]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.014401][  T251]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.014406][  T251]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.014410][  T251]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.014415][  T251]  __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))
[   12.014417][  T251]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.014423][  T251]  ? 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)
[   12.014425][  T251]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.014428][  T251]  put_chars (drivers/char/virtio_console.c:1176)
[   12.014431][  T251]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.014433][  T251]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.014438][  T251]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.014441][  T251]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.014445][  T251]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.014448][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.014453][  T251]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.014455][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.014460][  T251]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.014464][  T251]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.014466][  T251]  ? 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))
[   12.014469][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.014471][  T251]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.014475][  T251]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.014479][  T251]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.014480][  T251]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.014485][  T251]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.014488][  T251]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.014490][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.014492][  T251]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.014495][  T251]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.014497][  T251]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.014500][  T251]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.014504][  T251]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.014510][  T251]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   12.014514][  T251]  _printk (kernel/printk/printk.c:2504)
[   12.014518][  T251]  ? snapshot_read.cold (user.c:?)
[   12.014524][  T251]  ? 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)
[   12.014527][  T251] vlan_proto_init (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) ./include/net/netns/generic.h:45 (discriminator 2)) 8021q
[   12.014530][  T251]  do_one_initcall (init/main.c:1357)
[   12.014533][  T251]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.014537][  T251]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.014540][  T251]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.014545][  T251]  do_init_module (kernel/module/main.c:3117)
[   12.014549][  T251]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.014553][  T251]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.014556][  T251]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.014560][  T251]  load_module (kernel/module/main.c:3593)
[   12.014566][  T251]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.014570][  T251]  ? __ia32_sys_fsconfig (??:?)
[   12.014573][  T251]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   12.014577][  T251]  ? backing_file_read_iter (fs/backing-file.c:211)
[   12.014580][  T251]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.014583][  T251]  init_module_from_file (kernel/module/main.c:3790)
[   12.014586][  T251]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.014594][  T251]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.014598][  T251]  ? 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)
[   12.014601][  T251]  idempotent_init_module (kernel/module/main.c:3802)
[   12.014604][  T251]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.014610][  T251]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.014612][  T251]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.014618][  T251]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.014620][  T251]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.014623][  T251]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.014625][  T251]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.014628][  T251]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.014630][  T251] RIP: 0033:0x7fef9388537d
[   12.014633][  T251] 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
[   12.014635][  T251] RSP: 002b:00007ffc6953c328 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.014638][  T251] RAX: ffffffffffffffda RBX: 000056281a686810 RCX: 00007fef9388537d
[   12.014639][  T251] RDX: 0000000000000000 RSI: 00005627fa363ffd RDI: 0000000000000000
[   12.014640][  T251] RBP: 00007ffc6953c3c0 R08: 0000000000000000 R09: 0000000000000000
[   12.014641][  T251] R10: 0000000000000000 R11: 0000000000000246 R12: 00005627fa363ffd


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