======================================
| [   11.492978][  T192] softirqs last disabled at (26421): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.492980][  T192] Preemption disabled at:
| [   11.492980][  T192] 0x0
| [   11.492991][  T192] Tainted: [W]=WARN
[   11.492992][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.492993][  T192] Call Trace:
[   11.492995][  T192]  <TASK>
[   11.492996][  T192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.493003][  T192]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.493008][  T192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.493012][  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)
[   11.493018][  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))
[   11.493020][  T192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.493026][  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)
[   11.493029][  T192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.493032][  T192]  put_chars (drivers/char/virtio_console.c:1176)
[   11.493035][  T192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.493037][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.493042][  T192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.493048][  T192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.493054][  T192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.493057][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.493059][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.493064][  T192]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.493068][  T192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.493069][  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))
[   11.493073][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.493075][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.493079][  T192]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.493084][  T192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.493086][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.493092][  T192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.493095][  T192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.493096][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.493099][  T192]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.493103][  T192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.493104][  T192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.493108][  T192]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.493112][  T192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.493116][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.493120][  T192]  _printk (kernel/printk/printk.c:2504)
[   11.493124][  T192]  ? snapshot_read.cold (user.c:?)
[   11.493127][  T192]  ? 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)
[   11.493129][  T192]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.493134][  T192]  ? 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)
[   11.493136][  T192]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.493140][  T192]  ? exit_notify (kernel/exit.c:780)
[   11.493142][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.493145][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.493150][  T192]  do_group_exit (kernel/exit.c:1151)
[   11.493153][  T192]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.493154][  T192]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.493157][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.493160][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.493163][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.493165][  T192] RIP: 0033:0x7f2e644e81b8
[   11.493168][  T192] Code: Unable to access opcode bytes at 0x7f2e644e818e.

Code starting with the faulting instruction
===========================================
[   11.493169][  T192] RSP: 002b:00007ffff4a48948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.493171][  T192] RAX: ffffffffffffffda RBX: 00007f2e64618f88 RCX: 00007f2e644e81b8
[   11.493173][  T192] RDX: 00007f2e64232fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.493173][  T192] RBP: 00007ffff4a489a0 R08: 0000000000000000 R09: 0000000000008010
[   11.493174][  T192] R10: 00007ffff4a48760 R11: 0000000000000246 R12: 0000000000000001
[   11.493175][  T192] R13: 0000000000000000 R14: 00007f2e64617680 R15: 00007f2e64618fa0
| [   12.704178][  T239] softirqs last disabled at (25789): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.704181][  T239] Preemption disabled at:
| [   12.704182][  T239] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.704195][  T239] Tainted: [W]=WARN
[   12.704196][  T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.704198][  T239] Call Trace:
[   12.704201][  T239]  <TASK>
[   12.704206][  T239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.704214][  T239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.704217][  T239]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.704224][  T239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.704230][  T239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.704238][  T239]  __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))
[   12.704242][  T239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.704251][  T239]  ? 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)
[   12.704255][  T239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.704261][  T239]  put_chars (drivers/char/virtio_console.c:1176)
[   12.704265][  T239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.704268][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.704275][  T239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.704279][  T239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.704287][  T239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.704291][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.704301][  T239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.704306][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.704315][  T239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.704322][  T239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.704325][  T239]  ? 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))
[   12.704330][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.704334][  T239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.704342][  T239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.704349][  T239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.704352][  T239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.704362][  T239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.704367][  T239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.704370][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.704374][  T239]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.704381][  T239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.704383][  T239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.704390][  T239]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.704397][  T239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.704407][  T239]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   12.704413][  T239]  _printk (kernel/printk/printk.c:2504)
[   12.704418][  T239]  ? snapshot_read.cold (user.c:?)
[   12.704431][  T239]  ? 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)
[   12.704436][  T239] 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
[   12.704441][  T239]  do_one_initcall (init/main.c:1357)
[   12.704446][  T239]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   12.704455][  T239]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   12.704459][  T239]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   12.704467][  T239]  do_init_module (kernel/module/main.c:3117)
[   12.704474][  T239]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   12.704479][  T239]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   12.704485][  T239]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   12.704493][  T239]  load_module (kernel/module/main.c:3593)
[   12.704507][  T239]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   12.704514][  T239]  ? __ia32_sys_fsconfig (??:?)
[   12.704519][  T239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.704524][  T239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.704531][  T239]  init_module_from_file (kernel/module/main.c:3790)
[   12.704536][  T239]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   12.704552][  T239]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.704559][  T239]  ? 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)
[   12.704564][  T239]  idempotent_init_module (kernel/module/main.c:3802)
[   12.704570][  T239]  ? init_module_from_file (kernel/module/main.c:3791)
[   12.704583][  T239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.704587][  T239]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   12.704597][  T239]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   12.704600][  T239]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   12.704606][  T239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.704609][  T239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.704614][  T239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.704617][  T239] RIP: 0033:0x7f6e00eaa37d
[   12.704622][  T239] 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
[   12.704625][  T239] RSP: 002b:00007ffc6f8aeb08 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   12.704628][  T239] RAX: ffffffffffffffda RBX: 000055b1be694810 RCX: 00007f6e00eaa37d
[   12.704631][  T239] RDX: 0000000000000000 RSI: 000055b198644ffd RDI: 0000000000000000
[   12.704632][  T239] RBP: 00007ffc6f8aeba0 R08: 0000000000000000 R09: 0000000000000000
[   12.704634][  T239] R10: 0000000000000000 R11: 0000000000000246 R12: 000055b198644ffd
[   12.704635][  T239] R13: 000055b1be694960 R14: 0000000000040000 R15: 0000000000000000
| [   14.210125][  T283] softirqs last disabled at (20963): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.210128][  T283] Preemption disabled at:
| [   14.210129][  T283] 0x0
| [   14.210140][  T283] Tainted: [W]=WARN
[   14.210141][  T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.210143][  T283] Call Trace:
[   14.210145][  T283]  <TASK>
[   14.210146][  T283]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.210153][  T283]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.210158][  T283]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.210162][  T283]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.210168][  T283]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   14.210171][  T283]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.210177][  T283]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.210180][  T283]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.210183][  T283]  put_chars (drivers/char/virtio_console.c:1176)
[   14.210186][  T283]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.210188][  T283]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.210193][  T283]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.210199][  T283]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.210208][  T283]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.210211][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.210214][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.210218][  T283]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.210223][  T283]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.210225][  T283]  ? 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))
[   14.210228][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.210231][  T283]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.210235][  T283]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.210240][  T283]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.210242][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.210249][  T283]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.210252][  T283]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.210254][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.210256][  T283]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.210260][  T283]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.210262][  T283]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.210266][  T283]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.210270][  T283]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.210274][  T283]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.210278][  T283]  _printk (kernel/printk/printk.c:2504)
[   14.210283][  T283]  ? snapshot_read.cold (user.c:?)
[   14.210286][  T283]  ? 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)
[   14.210289][  T283]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   14.210293][  T283]  ? 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)
[   14.210296][  T283]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   14.210301][  T283]  ? exit_notify (kernel/exit.c:780)
[   14.210303][  T283]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.210306][  T283]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.210311][  T283]  do_group_exit (kernel/exit.c:1151)
[   14.210314][  T283]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   14.210316][  T283]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   14.210318][  T283]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.210322][  T283]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.210325][  T283]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.210327][  T283] RIP: 0033:0x7f8912fbf1b8
[   14.210330][  T283] Code: Unable to access opcode bytes at 0x7f8912fbf18e.

Code starting with the faulting instruction
===========================================
[   14.210331][  T283] RSP: 002b:00007fff2b055328 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   14.210333][  T283] RAX: ffffffffffffffda RBX: 00007f89130eff88 RCX: 00007f8912fbf1b8
[   14.210335][  T283] RDX: 00007f8912d09fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   14.210336][  T283] RBP: 00007fff2b055380 R08: 0000000000000000 R09: 0000000000000050
[   14.210336][  T283] R10: 00007fff2b055140 R11: 0000000000000246 R12: 0000000000000001
[   14.210337][  T283] R13: 0000000000000000 R14: 00007f89130ee680 R15: 00007f89130effa0
| [   16.426844][  T346] softirqs last disabled at (14024): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   16.426847][  T346] Preemption disabled at:
| [   16.426848][  T346] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.426858][  T346] Tainted: [W]=WARN
[   16.426859][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.426861][  T346] Call Trace:
[   16.426863][  T346]  <TASK>
[   16.426865][  T346]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.426872][  T346]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.426875][  T346]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.426880][  T346]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.426885][  T346]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.426891][  T346]  __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))
[   16.426894][  T346]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.426900][  T346]  ? 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)
[   16.426903][  T346]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.426907][  T346]  put_chars (drivers/char/virtio_console.c:1176)
[   16.426910][  T346]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   16.426912][  T346]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.426916][  T346]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.426920][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.426923][  T346]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.426928][  T346]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.426931][  T346]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.426933][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.426935][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.426941][  T346]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.426943][  T346]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   16.426947][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.426950][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.426962][  T346]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.426966][  T346]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.426968][  T346]  ? 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))
[   16.426972][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.426975][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.426980][  T346]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.426986][  T346]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.426988][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.426995][  T346]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.426998][  T346]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.427001][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.427003][  T346]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.427008][  T346]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.427010][  T346]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.427014][  T346]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.427020][  T346]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.427023][  T346]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.427026][  T346]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   16.427031][  T346]  _printk (kernel/printk/printk.c:2504)
[   16.427035][  T346]  ? snapshot_read.cold (user.c:?)
[   16.427040][  T346]  ? br_multicast_flood (??:?) bridge
[   16.427055][  T346]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.427057][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.427058][  T346]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.427064][  T346] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.427077][  T346] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   16.427086][  T346] new_nbp (net/bridge/br_if.c:449) bridge
[   16.427097][  T346] br_add_if (net/bridge/br_if.c:592) bridge
[   16.427104][  T346]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   16.427108][  T346]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   16.427112][  T346]  ? __kernel_text_address (kernel/extable.c:79)
[   16.427116][  T346]  do_set_master (net/core/rtnetlink.c:3071)
[   16.427122][  T346]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.427125][  T346]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.427129][  T346]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.427130][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.427132][  T346]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.427136][  T346]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.427139][  T346]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.427140][  T346]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.427143][  T346]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.427146][  T346]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.427148][  T346]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.427151][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.427153][  T346]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   16.427156][  T346]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.427161][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.427163][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.427166][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.427168][  T346]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.427170][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.427172][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.427174][  T346]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.427179][  T346]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   16.427182][  T346]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.427184][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.427188][  T346]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.427190][  T346]  ? nla_get_range_signed (lib/nlattr.c:270)
[   16.427195][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.427201][  T346]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.427210][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.427212][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.427217][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.427220][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.427222][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.427224][  T346]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.427229][  T346]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.427231][  T346]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.427235][  T346]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.427236][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.427242][  T346]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.427244][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.427249][  T346]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.427250][  T346]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.427254][  T346]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.427262][  T346]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   16.427264][  T346]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   16.427269][  T346]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.427273][  T346]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.427276][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.427281][  T346]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.427285][  T346]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.427290][  T346]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.427296][  T346]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.427298][  T346]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.427301][  T346]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.427302][  T346]  ? move_addr_to_kernel (net/socket.c:258)
[   16.427311][  T346]  ___sys_sendmsg (net/socket.c:2767)
[   16.427314][  T346]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.427334][  T346]  __sys_sendmsg (net/socket.c:2799)
[   16.427337][  T346]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.427344][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.427348][  T346]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.427351][  T346]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.427354][  T346]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.427357][  T346] RIP: 0033:0x7fb202ab154e
[   16.427360][  T346] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   16.427362][  T346] RSP: 002b:00007ffc33735100 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.427365][  T346] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb202ab154e
[   16.427367][  T346] RDX: 0000000000000000 RSI: 00007ffc337351b0 RDI: 0000000000000005
[   16.427367][  T346] RBP: 00007ffc33735110 R08: 0000000000000000 R09: 0000000000000000
[   16.427368][  T346] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910402
[   16.427369][  T346] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc33735870
| [   17.431169][   T36] softirqs last disabled at (65122): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) bridge
| [   17.431177][   T36] Preemption disabled at:
| [   17.431178][   T36] 0x0
| [   17.431188][   T36] Tainted: [W]=WARN
[   17.431189][   T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.431191][   T36] Workqueue: events_unbound linkwatch_event
[   17.431195][   T36] Call Trace:
[   17.431197][   T36]  <TASK>
[   17.431199][   T36]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.431208][   T36]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.431213][   T36]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.431218][   T36]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.431223][   T36]  __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))
[   17.431226][   T36]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.431232][   T36]  ? 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)
[   17.431235][   T36]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.431239][   T36]  put_chars (drivers/char/virtio_console.c:1176)
[   17.431242][   T36]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.431245][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.431249][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.431252][   T36]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.431256][   T36]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.431259][   T36]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.431261][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.431262][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.431267][   T36]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.431269][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.431274][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.431278][   T36]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.431282][   T36]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.431284][   T36]  ? 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))
[   17.431288][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.431290][   T36]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.431295][   T36]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.431300][   T36]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.431301][   T36]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.431308][   T36]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.431311][   T36]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.431312][   T36]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.431315][   T36]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.431319][   T36]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.431321][   T36]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.431325][   T36]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.431329][   T36]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.431332][   T36]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.431335][   T36]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.431339][   T36]  _printk (kernel/printk/printk.c:2504)
[   17.431343][   T36]  ? snapshot_read.cold (user.c:?)
[   17.431349][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.431354][   T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.431364][   T36] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   17.431373][   T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) bridge
[   17.431380][   T36] br_port_carrier_check (net/bridge/br_if.c:90) bridge
[   17.431389][   T36] br_device_event (net/bridge/br.c:101) bridge
[   17.431399][   T36]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   17.431401][   T36]  ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599)
[   17.431409][   T36]  notifier_call_chain (kernel/notifier.c:85)
[   17.431416][   T36]  netif_state_change (net/core/dev.c:1625)
[   17.431421][   T36]  ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7))
[   17.431426][   T36]  ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166)
[   17.431429][   T36]  __linkwatch_run_queue (net/core/link_watch.c:240)
[   17.431432][   T36]  ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.431435][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.431440][   T36]  linkwatch_event (net/core/link_watch.c:314 (discriminator 11))
[   17.431442][   T36]  ? __linkwatch_run_queue (./include/linux/list.h:577)
[   17.431446][   T36]  process_one_work (kernel/workqueue.c:3387)
[   17.431454][   T36]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   17.431457][   T36]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.431466][   T36]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.431474][   T36]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.431476][   T36]  kthread (kernel/kthread.c:436)
[   17.431478][   T36]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.431481][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.431484][   T36]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.431488][   T36]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   17.431492][   T36]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.431496][   T36]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.431499][   T36]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   18.557857][  T408] softirqs last disabled at (14362): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   18.557859][  T408] Preemption disabled at:
| [   18.557860][  T408] vprintk_emit (kernel/printk/printk.c:2471)
| [   18.557869][  T408] Tainted: [W]=WARN
[   18.557869][  T408] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.557871][  T408] Call Trace:
[   18.557873][  T408]  <TASK>
[   18.557874][  T408]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.557880][  T408]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   18.557883][  T408]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.557887][  T408]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.557892][  T408]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.557897][  T408]  __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))
[   18.557900][  T408]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.557906][  T408]  ? 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)
[   18.557909][  T408]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.557913][  T408]  put_chars (drivers/char/virtio_console.c:1176)
[   18.557915][  T408]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   18.557917][  T408]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.557921][  T408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.557925][  T408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.557928][  T408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.557932][  T408]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.557935][  T408]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   18.557937][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.557938][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.557943][  T408]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.557945][  T408]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   18.557949][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.557952][  T408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.557956][  T408]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.557966][  T408]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.557968][  T408]  ? 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))
[   18.557972][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.557974][  T408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.557979][  T408]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.557984][  T408]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.557986][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.557992][  T408]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.557995][  T408]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.557997][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.557999][  T408]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   18.558003][  T408]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.558005][  T408]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.558009][  T408]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.558014][  T408]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.558016][  T408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.558019][  T408]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   18.558023][  T408]  _printk (kernel/printk/printk.c:2504)
[   18.558027][  T408]  ? snapshot_read.cold (user.c:?)
[   18.558032][  T408]  ? br_multicast_flood (??:?) bridge
[   18.558045][  T408]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   18.558046][  T408]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   18.558048][  T408]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   18.558053][  T408] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   18.558064][  T408] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   18.558073][  T408] new_nbp (net/bridge/br_if.c:449) bridge
[   18.558084][  T408] br_add_if (net/bridge/br_if.c:592) bridge
[   18.558091][  T408]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   18.558095][  T408]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   18.558098][  T408]  ? __kernel_text_address (kernel/extable.c:79)
[   18.558103][  T408]  do_set_master (net/core/rtnetlink.c:3071)
[   18.558108][  T408]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   18.558111][  T408]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   18.558115][  T408]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   18.558116][  T408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   18.558118][  T408]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   18.558122][  T408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   18.558125][  T408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.558127][  T408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   18.558129][  T408]  ? kasan_save_stack (mm/kasan/common.c:58)
[   18.558133][  T408]  ? kasan_save_stack (mm/kasan/common.c:57)
[   18.558134][  T408]  ? kasan_save_track (mm/kasan/common.c:78)
[   18.558137][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.558139][  T408]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   18.558142][  T408]  ? ___sys_sendmsg (net/socket.c:2757)
[   18.558147][  T408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.558149][  T408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.558152][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.558155][  T408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.558156][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.558158][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.558161][  T408]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   18.558165][  T408]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   18.558168][  T408]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   18.558170][  T408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   18.558174][  T408]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   18.558176][  T408]  ? nla_get_range_signed (lib/nlattr.c:270)
[   18.558182][  T408]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   18.558188][  T408]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   18.558194][  T408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.558196][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.558201][  T408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.558206][  T408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.558209][  T408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.558211][  T408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.558215][  T408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   18.558218][  T408]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   18.558221][  T408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.558223][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.558228][  T408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.558230][  T408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   18.558234][  T408]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   18.558235][  T408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   18.558239][  T408]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   18.558246][  T408]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   18.558248][  T408]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   18.558253][  T408]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   18.558257][  T408]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   18.558260][  T408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.558265][  T408]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   18.558269][  T408]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   18.558273][  T408]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   18.558279][  T408]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   18.558282][  T408]  ? copy_msghdr_from_user (net/socket.c:2650)
[   18.558284][  T408]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   18.558286][  T408]  ? move_addr_to_kernel (net/socket.c:258)
[   18.558295][  T408]  ___sys_sendmsg (net/socket.c:2767)
[   18.558298][  T408]  ? copy_msghdr_from_user (net/socket.c:2619)
[   18.558317][  T408]  __sys_sendmsg (net/socket.c:2799)
[   18.558320][  T408]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   18.558328][  T408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.558332][  T408]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   18.558334][  T408]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   18.558338][  T408]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   18.558340][  T408] RIP: 0033:0x7fd4149ba54e
[   18.558344][  T408] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   18.558346][  T408] RSP: 002b:00007ffe91aba900 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   18.558349][  T408] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd4149ba54e
[   18.558350][  T408] RDX: 0000000000000000 RSI: 00007ffe91aba9b0 RDI: 0000000000000005
[   18.558351][  T408] RBP: 00007ffe91aba910 R08: 0000000000000000 R09: 0000000000000000
[   18.558352][  T408] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910404
[   18.558353][  T408] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe91abb070
| [   29.637319][    C0] softirqs last disabled at (923815): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   29.637321][    C0] Preemption disabled at:
| [   29.637322][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   29.637332][    C0] Tainted: [W]=WARN
[   29.637333][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.637336][    C0] Call Trace:
[   29.637337][    C0]  <IRQ>
[   29.637339][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.637345][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   29.637346][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.637349][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.637353][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   29.637356][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637360][    C0]  __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))
[   29.637363][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.637366][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.637369][    C0]  ? 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)
[   29.637371][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.637373][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   29.637375][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.637377][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   29.637381][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.637385][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.637387][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637389][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.637391][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.637394][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.637397][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637399][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637401][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.637403][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.637405][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.637408][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.637412][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.637414][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.637416][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.637418][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637420][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.637422][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.637424][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.637426][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.637429][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.637432][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.637434][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637436][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.637438][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   29.637443][    C0]  _printk (kernel/printk/printk.c:2504)
[   29.637447][    C0]  ? snapshot_read.cold (user.c:?)
[   29.637449][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   29.637453][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.637456][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   29.637458][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   29.637461][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.637464][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.637467][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.637469][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.637471][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.637474][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.637490][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637492][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.637495][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.637505][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.637507][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.637516][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.637526][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.637535][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   29.637539][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.637541][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.637545][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.637548][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.637550][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637553][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.637555][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.637565][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.637567][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.637571][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.637574][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.637576][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.637578][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.637581][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637583][    C0]  handle_softirqs (kernel/softirq.c:645)
[   29.637585][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.637587][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.637590][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.637592][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   29.637594][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.637597][    C0]  </IRQ>
[   29.637598][    C0]  <TASK>
[   29.637598][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.637601][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.637603][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.637607][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   29.637609][    C0] RSP: 0018:ffffffffb3407cf8 EFLAGS: 00000296
[   29.637612][    C0] RAX: 00000000000e18a5 RBX: ffffffffb341c600 RCX: ffffffffb04f0307
[   29.637614][    C0] RDX: ffffffffb341c600 RSI: ffffffffb3238b01 RDI: ffffffffb2c8d8e0
[   29.637615][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.637616][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff6680fa2
[   29.637617][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   29.637619][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.637623][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.637625][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.637627][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   29.637629][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.637631][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   29.637633][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.637636][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.637638][    C0]  do_idle (kernel/sched/idle.c:355)
[   29.637640][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.637642][    C0]  rest_init (init/main.c:727)
[   29.637644][    C0]  ? __cpuidle_text_end (??:?)
[   29.637647][    C0]  ? rest_init (init/main.c:727)
[   29.637649][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   29.637653][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   29.637656][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   29.637659][    C0]  start_kernel (init/main.c:1185)
[   29.637662][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   29.637664][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   29.637666][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.711288][    C0]
| [   29.711366][    C0]
| [   29.711366][    C0] stack backtrace:
| [   29.711616][    C0] Tainted: [W]=WARN
[   29.711617][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.711618][    C0] Call Trace:
[   29.711620][    C0]  <IRQ>
[   29.711621][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.711625][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   29.711629][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   29.711632][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   29.711634][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   29.711636][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   29.711638][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.711640][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.711648][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.711651][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.711653][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.711660][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   29.711661][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.711668][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   29.711675][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.711682][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   29.711684][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   29.711686][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   29.711690][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.711691][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.711693][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.711695][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   29.711697][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   29.711704][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   29.711706][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.711709][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.711711][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   29.711713][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   29.711715][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.711718][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.711719][    C0]  handle_softirqs (kernel/softirq.c:645)
[   29.711722][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.711723][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   29.711725][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   29.711727][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   29.711728][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   29.711730][    C0]  </IRQ>
[   29.711731][    C0]  <TASK>
[   29.711731][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   29.711733][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   29.711735][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   29.711737][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   29.711739][    C0] RSP: 0018:ffffffffb3407cf8 EFLAGS: 00000296
[   29.711743][    C0] RAX: 00000000000e18a5 RBX: ffffffffb341c600 RCX: ffffffffb04f0307
[   29.711744][    C0] RDX: ffffffffb341c600 RSI: ffffffffb3238b01 RDI: ffffffffb2c8d8e0
[   29.711745][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   29.711746][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff6680fa2
[   29.711746][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   29.711748][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.711750][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.711752][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   29.711754][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   29.711755][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   29.711757][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   29.711758][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   29.711761][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.711763][    C0]  do_idle (kernel/sched/idle.c:355)
[   29.711765][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   29.711766][    C0]  rest_init (init/main.c:727)
[   29.711768][    C0]  ? __cpuidle_text_end (??:?)
[   29.711771][    C0]  ? rest_init (init/main.c:727)
[   29.711773][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   29.711776][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   29.711779][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   29.711782][    C0]  start_kernel (init/main.c:1185)
[   29.711783][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   29.711785][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   29.711787][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   31.884802][   T12] softirqs last disabled at (39078): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   31.884804][   T12] Preemption disabled at:
| [   31.884805][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   31.884817][   T12] Tainted: [W]=WARN
[   31.884818][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.884821][   T12] Workqueue: netns cleanup_net
[   31.884827][   T12] Call Trace:
[   31.884828][   T12]  <TASK>
[   31.884830][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.884835][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   31.884837][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.884841][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.884844][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884848][   T12]  __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))
[   31.884851][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   31.884854][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.884858][   T12]  ? 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)
[   31.884859][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.884861][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   31.884863][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   31.884865][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.884867][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   31.884869][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.884872][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.884873][   T12]  ? 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)
[   31.884875][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   31.884877][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884879][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884880][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.884883][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.884885][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.884887][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884889][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884891][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884893][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.884895][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   31.884896][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.884899][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.884902][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.884903][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.884905][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.884907][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884908][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   31.884910][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   31.884911][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   31.884913][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.884915][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.884917][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.884920][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.884921][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   31.884924][   T12]  ? kthread (kernel/kthread.c:436)
[   31.884926][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   31.884929][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   31.884931][   T12]  _printk (kernel/printk/printk.c:2504)
[   31.884934][   T12]  ? snapshot_read.cold (user.c:?)
[   31.884937][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   31.884940][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   31.884941][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   31.884943][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   31.884945][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.884947][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   31.884948][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   31.884951][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   31.884952][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   31.884955][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   31.884958][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   31.884960][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   31.884974][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   31.884983][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   31.884990][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   31.884993][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   31.884994][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   31.885005][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   31.885007][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   31.885009][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.885010][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.885013][   T12]  process_one_work (kernel/workqueue.c:3387)
[   31.885015][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   31.885017][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.885020][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   31.885022][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   31.885025][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   31.885027][   T12]  kthread (kernel/kthread.c:436)
[   31.885028][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.885030][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.885032][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.885033][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   31.885035][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.885037][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print