======================================
| [   13.506513][  T292] softirqs last disabled at (26895): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   13.506516][  T292] Preemption disabled at:
| [   13.506516][  T292] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.506525][  T292] Tainted: [W]=WARN
[   13.506526][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.506528][  T292] Call Trace:
[   13.506530][  T292]  <TASK>
[   13.506532][  T292]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.506537][  T292]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.506539][  T292]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.506544][  T292]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.506548][  T292]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.506553][  T292]  __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))
[   13.506555][  T292]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.506560][  T292]  ? 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)
[   13.506563][  T292]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.506566][  T292]  put_chars (drivers/char/virtio_console.c:1176)
[   13.506569][  T292]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.506570][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.506575][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.506577][  T292]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.506582][  T292]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.506584][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.506589][  T292]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.506592][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.506596][  T292]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.506600][  T292]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.506602][  T292]  ? 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))
[   13.506605][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.506607][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.506611][  T292]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.506615][  T292]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.506617][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.506621][  T292]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.506624][  T292]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.506626][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.506628][  T292]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.506632][  T292]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.506633][  T292]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.506637][  T292]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.506640][  T292]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.506648][  T292]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   13.506652][  T292]  _printk (kernel/printk/printk.c:2504)
[   13.506656][  T292]  ? snapshot_read.cold (user.c:?)
[   13.506662][  T292]  ? 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)
[   13.506665][  T292] 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
[   13.506668][  T292]  do_one_initcall (init/main.c:1357)
[   13.506671][  T292]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   13.506675][  T292]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   13.506679][  T292]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   13.506683][  T292]  do_init_module (kernel/module/main.c:3117)
[   13.506687][  T292]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.506691][  T292]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   13.506694][  T292]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   13.506698][  T292]  load_module (kernel/module/main.c:3593)
[   13.506705][  T292]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   13.506708][  T292]  ? __ia32_sys_fsconfig (??:?)
[   13.506711][  T292]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   13.506715][  T292]  ? backing_file_read_iter (fs/backing-file.c:211)
[   13.506718][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.506722][  T292]  init_module_from_file (kernel/module/main.c:3790)
[   13.506725][  T292]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   13.506733][  T292]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   13.506736][  T292]  ? 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)
[   13.506739][  T292]  idempotent_init_module (kernel/module/main.c:3802)
[   13.506743][  T292]  ? init_module_from_file (kernel/module/main.c:3791)
[   13.506749][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.506751][  T292]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.506757][  T292]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   13.506759][  T292]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.506763][  T292]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.506764][  T292]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.506767][  T292]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.506770][  T292] RIP: 0033:0x7fbc0cfb037d
[   13.506773][  T292] 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
[   13.506775][  T292] RSP: 002b:00007ffdb86c9bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   13.506778][  T292] RAX: ffffffffffffffda RBX: 000055820268e810 RCX: 00007fbc0cfb037d
[   13.506779][  T292] RDX: 0000000000000000 RSI: 00005581e12b1ffd RDI: 0000000000000000
[   13.506780][  T292] RBP: 00007ffdb86c9c50 R08: 0000000000000000 R09: 0000000000000000
[   13.506781][  T292] R10: 0000000000000000 R11: 0000000000000246 R12: 00005581e12b1ffd
[   13.506782][  T292] R13: 000055820268e960 R14: 0000000000040000 R15: 0000000000000000
| [   21.303944][  T390] softirqs last disabled at (21423): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.303947][  T390] Preemption disabled at:
| [   21.303947][  T390] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.303956][  T390] Tainted: [W]=WARN
[   21.303957][  T390] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.303959][  T390] Call Trace:
[   21.303961][  T390]  <TASK>
[   21.303962][  T390]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.303968][  T390]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.303971][  T390]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.303977][  T390]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.303981][  T390]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.303986][  T390]  __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))
[   21.303989][  T390]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.303994][  T390]  ? 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)
[   21.303997][  T390]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.304000][  T390]  put_chars (drivers/char/virtio_console.c:1176)
[   21.304002][  T390]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   21.304004][  T390]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.304007][  T390]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.304010][  T390]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.304014][  T390]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.304016][  T390]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.304018][  T390]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.304022][  T390]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.304024][  T390]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.304027][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.304030][  T390]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.304033][  T390]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.304037][  T390]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.304039][  T390]  ? 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))
[   21.304042][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.304044][  T390]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.304048][  T390]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.304052][  T390]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.304054][  T390]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.304059][  T390]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.304062][  T390]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.304063][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.304066][  T390]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.304069][  T390]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.304071][  T390]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.304074][  T390]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.304078][  T390]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.304083][  T390]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   21.304086][  T390]  _printk (kernel/printk/printk.c:2504)
[   21.304090][  T390]  ? snapshot_read.cold (user.c:?)
[   21.304096][  T390]  ? 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)
[   21.304099][  T390] gact_init_module (net/sched/act_gact.c:180) act_gact
[   21.304102][  T390]  do_one_initcall (init/main.c:1357)
[   21.304104][  T390]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   21.304109][  T390]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   21.304112][  T390]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   21.304117][  T390]  do_init_module (kernel/module/main.c:3117)
[   21.304120][  T390]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.304125][  T390]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   21.304128][  T390]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   21.304132][  T390]  load_module (kernel/module/main.c:3593)
[   21.304141][  T390]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   21.304147][  T390]  ? __ia32_sys_fsconfig (??:?)
[   21.304150][  T390]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   21.304154][  T390]  ? backing_file_read_iter (fs/backing-file.c:211)
[   21.304157][  T390]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.304161][  T390]  init_module_from_file (kernel/module/main.c:3790)
[   21.304164][  T390]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   21.304172][  T390]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.304176][  T390]  ? 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)
[   21.304179][  T390]  idempotent_init_module (kernel/module/main.c:3802)
[   21.304182][  T390]  ? init_module_from_file (kernel/module/main.c:3791)
[   21.304188][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.304190][  T390]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   21.304196][  T390]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   21.304198][  T390]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.304202][  T390]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.304204][  T390]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.304206][  T390]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.304209][  T390] RIP: 0033:0x7f3616fee37d
[   21.304212][  T390] 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
[   21.304214][  T390] RSP: 002b:00007ffeb57cc988 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   21.304217][  T390] RAX: ffffffffffffffda RBX: 000055b8ac609810 RCX: 00007f3616fee37d
[   21.304218][  T390] RDX: 0000000000000000 RSI: 000055b895f1affd RDI: 0000000000000000
[   21.304219][  T390] RBP: 00007ffeb57cca20 R08: 0000000000000000 R09: 0000000000000000
[   21.304220][  T390] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b895f1affd
[   21.304221][  T390] R13: 000055b8ac609960 R14: 0000000000040000 R15: 0000000000000000
| [   29.090626][  T629] softirqs last disabled at (24783): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.090628][  T629] Preemption disabled at:
| [   29.090629][  T629] 0x0
| [   29.090640][  T629] Tainted: [W]=WARN
[   29.090641][  T629] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.090643][  T629] Call Trace:
[   29.090648][  T629]  <TASK>
[   29.090649][  T629]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.090656][  T629]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.090661][  T629]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.090666][  T629]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.090671][  T629]  __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))
[   29.090673][  T629]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.090679][  T629]  ? 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)
[   29.090682][  T629]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.090685][  T629]  put_chars (drivers/char/virtio_console.c:1176)
[   29.090688][  T629]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.090690][  T629]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.090695][  T629]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.090700][  T629]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.090706][  T629]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.090708][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.090711][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.090715][  T629]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.090719][  T629]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.090721][  T629]  ? 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))
[   29.090724][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.090726][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.090730][  T629]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.090735][  T629]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.090737][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.090742][  T629]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.090745][  T629]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.090747][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.090749][  T629]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.090753][  T629]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.090754][  T629]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.090758][  T629]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.090762][  T629]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.090765][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.090769][  T629]  _printk (kernel/printk/printk.c:2504)
[   29.090773][  T629]  ? snapshot_read.cold (user.c:?)
[   29.090776][  T629]  ? 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)
[   29.090778][  T629]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.090782][  T629]  ? 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)
[   29.090785][  T629]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   29.090789][  T629]  ? exit_notify (kernel/exit.c:780)
[   29.090791][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.090794][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.090798][  T629]  do_group_exit (kernel/exit.c:1151)
[   29.090801][  T629]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   29.090802][  T629]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   29.090805][  T629]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.090808][  T629]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.090811][  T629]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.090813][  T629] RIP: 0033:0x7f12b87a21b8
[   29.090816][  T629] Code: Unable to access opcode bytes at 0x7f12b87a218e.

Code starting with the faulting instruction
===========================================
[   29.090817][  T629] RSP: 002b:00007fff66d177b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   29.090820][  T629] RAX: ffffffffffffffda RBX: 00007f12b88d2f88 RCX: 00007f12b87a21b8
[   29.090821][  T629] RDX: 00007f12b84ecfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   29.090822][  T629] RBP: 00007fff66d17810 R08: 0000000000000000 R09: 0000000000000060
[   29.090823][  T629] R10: 00007fff66d175d0 R11: 0000000000000246 R12: 0000000000000001


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