======================================
| [   12.457775][  T273] softirqs last disabled at (28029): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.457778][  T273] Preemption disabled at:
| [   12.457778][  T273] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.457787][  T273] Tainted: [W]=WARN
[   12.457788][  T273] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.457790][  T273] Call Trace:
[   12.457791][  T273]  <TASK>
[   12.457793][  T273]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.457799][  T273]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.457801][  T273]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.457806][  T273]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.457810][  T273]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.457815][  T273]  __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))
[   12.457817][  T273]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.457823][  T273]  ? 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)
[   12.457826][  T273]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.457829][  T273]  put_chars (drivers/char/virtio_console.c:1176)
[   12.457832][  T273]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.457833][  T273]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.457838][  T273]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.457840][  T273]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.457845][  T273]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.457847][  T273]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.457852][  T273]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.457855][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.457860][  T273]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.457864][  T273]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.457866][  T273]  ? 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))
[   12.457869][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.457871][  T273]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.457875][  T273]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.457879][  T273]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.457881][  T273]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.457890][  T273]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.457893][  T273]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.457895][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.457897][  T273]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.457901][  T273]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.457902][  T273]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.457906][  T273]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.457910][  T273]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.457915][  T273]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   12.457919][  T273]  _printk (kernel/printk/printk.c:2504)
[   12.457923][  T273]  ? snapshot_read.cold (user.c:?)
[   12.457929][  T273]  ? 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)
[   12.457932][  T273] 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
[   12.457935][  T273]  do_one_initcall (init/main.c:1357)
[   12.457938][  T273]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.457943][  T273]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.457946][  T273]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.457950][  T273]  do_init_module (kernel/module/main.c:3117)
[   12.457954][  T273]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.457958][  T273]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.457961][  T273]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.457965][  T273]  load_module (kernel/module/main.c:3593)
[   12.457973][  T273]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.457976][  T273]  ? __ia32_sys_fsconfig (??:?)
[   12.457979][  T273]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   12.457983][  T273]  ? backing_file_read_iter (fs/backing-file.c:211)
[   12.457986][  T273]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.457990][  T273]  init_module_from_file (kernel/module/main.c:3790)
[   12.457993][  T273]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.458004][  T273]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.458008][  T273]  ? 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)
[   12.458011][  T273]  idempotent_init_module (kernel/module/main.c:3802)
[   12.458015][  T273]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.458022][  T273]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.458024][  T273]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.458030][  T273]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.458032][  T273]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.458035][  T273]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.458037][  T273]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.458040][  T273]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.458042][  T273] RIP: 0033:0x7f76c9c6f37d
[   12.458045][  T273] 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
[   12.458047][  T273] RSP: 002b:00007ffc7e3da2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.458050][  T273] RAX: ffffffffffffffda RBX: 00005619772c7810 RCX: 00007f76c9c6f37d
[   12.458051][  T273] RDX: 0000000000000000 RSI: 000056196b1b2ffd RDI: 0000000000000000
[   12.458052][  T273] RBP: 00007ffc7e3da390 R08: 0000000000000000 R09: 0000000000000000
[   12.458053][  T273] R10: 0000000000000000 R11: 0000000000000246 R12: 000056196b1b2ffd
[   12.458054][  T273] R13: 00005619772c7960 R14: 0000000000040000 R15: 0000000000000000
| [   19.420786][  T367] softirqs last disabled at (11509): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.420788][  T367] Preemption disabled at:
| [   19.420789][  T367] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.420798][  T367] Tainted: [W]=WARN
[   19.420799][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.420800][  T367] Call Trace:
[   19.420802][  T367]  <TASK>
[   19.420803][  T367]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.420809][  T367]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.420811][  T367]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.420816][  T367]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.420820][  T367]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.420825][  T367]  __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))
[   19.420827][  T367]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.420833][  T367]  ? 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)
[   19.420835][  T367]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.420838][  T367]  put_chars (drivers/char/virtio_console.c:1176)
[   19.420840][  T367]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   19.420842][  T367]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.420845][  T367]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   19.420848][  T367]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.420852][  T367]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.420854][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.420856][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.420860][  T367]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.420861][  T367]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   19.420865][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.420867][  T367]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.420871][  T367]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.420875][  T367]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.420877][  T367]  ? 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))
[   19.420880][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.420882][  T367]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.420891][  T367]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.420895][  T367]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.420897][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.420902][  T367]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.420905][  T367]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.420907][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.420909][  T367]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.420912][  T367]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.420914][  T367]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.420917][  T367]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.420921][  T367]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.420926][  T367]  ? gre_exit (net/ipv4/gre_demux.c:73) gre
[   19.420929][  T367]  _printk (kernel/printk/printk.c:2504)
[   19.420933][  T367]  ? snapshot_read.cold (user.c:?)
[   19.420939][  T367]  ? 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)
[   19.420942][  T367] gact_init_module (net/sched/act_gact.c:180) act_gact
[   19.420944][  T367]  do_one_initcall (init/main.c:1357)
[   19.420947][  T367]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   19.420951][  T367]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   19.420954][  T367]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   19.420959][  T367]  do_init_module (kernel/module/main.c:3117)
[   19.420963][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   19.420967][  T367]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   19.420970][  T367]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   19.420974][  T367]  load_module (kernel/module/main.c:3593)
[   19.420981][  T367]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   19.420984][  T367]  ? __ia32_sys_fsconfig (??:?)
[   19.420988][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.420990][  T367]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.420994][  T367]  init_module_from_file (kernel/module/main.c:3790)
[   19.420997][  T367]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   19.421007][  T367]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.421010][  T367]  ? 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)
[   19.421013][  T367]  idempotent_init_module (kernel/module/main.c:3802)
[   19.421017][  T367]  ? init_module_from_file (kernel/module/main.c:3791)
[   19.421023][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.421025][  T367]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   19.421031][  T367]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   19.421033][  T367]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.421037][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.421039][  T367]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.421041][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.421044][  T367] RIP: 0033:0x7f826047a37d
[   19.421047][  T367] 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
[   19.421049][  T367] RSP: 002b:00007ffc3ea9d758 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   19.421052][  T367] RAX: ffffffffffffffda RBX: 000055ca017d8810 RCX: 00007f826047a37d
[   19.421053][  T367] RDX: 0000000000000000 RSI: 000055c9cf9f0ffd RDI: 0000000000000000
[   19.421054][  T367] RBP: 00007ffc3ea9d7f0 R08: 0000000000000000 R09: 0000000000000000
[   19.421055][  T367] R10: 0000000000000000 R11: 0000000000000246 R12: 000055c9cf9f0ffd
[   19.421056][  T367] R13: 000055ca017d8960 R14: 0000000000040000 R15: 0000000000000000
| [   27.126768][  T614] softirqs last disabled at (27052): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   27.126770][  T614] Preemption disabled at:
| [   27.126771][  T614] 0x0
| [   27.126782][  T614] Tainted: [W]=WARN
[   27.126783][  T614] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.126785][  T614] Call Trace:
[   27.126786][  T614]  <TASK>
[   27.126788][  T614]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.126794][  T614]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.126799][  T614]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.126803][  T614]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.126808][  T614]  __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))
[   27.126811][  T614]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.126816][  T614]  ? 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)
[   27.126819][  T614]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.126822][  T614]  put_chars (drivers/char/virtio_console.c:1176)
[   27.126825][  T614]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.126826][  T614]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.126831][  T614]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.126836][  T614]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.126843][  T614]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.126845][  T614]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.126847][  T614]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.126851][  T614]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.126855][  T614]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.126857][  T614]  ? 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))
[   27.126860][  T614]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.126863][  T614]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.126867][  T614]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.126871][  T614]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.126873][  T614]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.126878][  T614]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.126881][  T614]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.126889][  T614]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.126891][  T614]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.126895][  T614]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.126897][  T614]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.126900][  T614]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.126904][  T614]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.126907][  T614]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.126911][  T614]  _printk (kernel/printk/printk.c:2504)
[   27.126915][  T614]  ? snapshot_read.cold (user.c:?)
[   27.126918][  T614]  ? 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)
[   27.126921][  T614]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.126925][  T614]  ? 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)
[   27.126928][  T614]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   27.126931][  T614]  ? exit_notify (kernel/exit.c:780)
[   27.126933][  T614]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.126936][  T614]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.126940][  T614]  do_group_exit (kernel/exit.c:1151)
[   27.126943][  T614]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   27.126945][  T614]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   27.126947][  T614]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.126951][  T614]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.126954][  T614]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.126956][  T614] RIP: 0033:0x7fbc2f8e21b8
[   27.126958][  T614] Code: Unable to access opcode bytes at 0x7fbc2f8e218e.

Code starting with the faulting instruction
===========================================
[   27.126960][  T614] RSP: 002b:00007ffefa0fbe78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   27.126962][  T614] RAX: ffffffffffffffda RBX: 00007fbc2fa12f88 RCX: 00007fbc2f8e21b8
[   27.126964][  T614] RDX: 00007fbc2f62cfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   27.126965][  T614] RBP: 00007ffefa0fbed0 R08: 0000000000000000 R09: 0000000000000050
[   27.126966][  T614] R10: 00007ffefa0fbc90 R11: 0000000000000246 R12: 0000000000000001


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