======================================
| [   21.509930][  T546] softirqs last disabled at (41519): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   21.509933][  T546] Preemption disabled at:
| [   21.509934][  T546] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.509942][  T546] Tainted: [W]=WARN
[   21.509943][  T546] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.509944][  T546] Call Trace:
[   21.509946][  T546]  <TASK>
[   21.509947][  T546]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.509952][  T546]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.509954][  T546]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.509959][  T546]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.509962][  T546]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.509967][  T546]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   21.509969][  T546]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.509975][  T546]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.509978][  T546]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.509982][  T546]  put_chars (drivers/char/virtio_console.c:1176)
[   21.509984][  T546]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.509987][  T546]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.509993][  T546]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.510000][  T546]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.510002][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.510006][  T546]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.510010][  T546]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.510013][  T546]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.510014][  T546]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   21.510017][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.510019][  T546]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.510023][  T546]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.510027][  T546]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.510028][  T546]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.510033][  T546]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.510036][  T546]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.510037][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.510039][  T546]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   21.510043][  T546]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.510045][  T546]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.510047][  T546]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.510051][  T546]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.510057][  T546]  ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip
[   21.510060][  T546]  _printk (kernel/printk/printk.c:2504)
[   21.510063][  T546]  ? snapshot_read.cold (user.c:?)
[   21.510069][  T546]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   21.510073][  T546] ipip_init (net/ipv4/ipip.c:438) ipip
[   21.510076][  T546]  do_one_initcall (init/main.c:1357)
[   21.510078][  T546]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   21.510083][  T546]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   21.510085][  T546]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   21.510090][  T546]  do_init_module (kernel/module/main.c:3117)
[   21.510093][  T546]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   21.510098][  T546]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   21.510100][  T546]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   21.510104][  T546]  load_module (kernel/module/main.c:3593)
[   21.510111][  T546]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   21.510115][  T546]  ? __ia32_sys_fsconfig (??:?)
[   21.510118][  T546]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   21.510122][  T546]  ? backing_file_read_iter (fs/backing-file.c:211)
[   21.510125][  T546]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.510129][  T546]  init_module_from_file (kernel/module/main.c:3790)
[   21.510131][  T546]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   21.510139][  T546]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   21.510143][  T546]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   21.510146][  T546]  idempotent_init_module (kernel/module/main.c:3802)
[   21.510149][  T546]  ? init_module_from_file (kernel/module/main.c:3791)
[   21.510154][  T546]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.510156][  T546]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   21.510161][  T546]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   21.510163][  T546]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   21.510167][  T546]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.510169][  T546]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.510172][  T546]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.510174][  T546] RIP: 0033:0x7fbcdc86837d
[   21.510178][  T546] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   21.510179][  T546] RSP: 002b:00007ffee1236eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   21.510182][  T546] RAX: ffffffffffffffda RBX: 00005598ccc59810 RCX: 00007fbcdc86837d
[   21.510183][  T546] RDX: 0000000000000000 RSI: 00005598b0d48ffd RDI: 0000000000000002
[   21.510184][  T546] RBP: 00007ffee1236f50 R08: 0000000000000000 R09: 0000000000000000
[   21.510185][  T546] R10: 0000000000000000 R11: 0000000000000246 R12: 00005598b0d48ffd
[   21.510186][  T546] R13: 00005598ccc599b0 R14: 0000000000040000 R15: 0000000000000000
| [   24.057527][  T645] softirqs last disabled at (18285): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   24.057529][  T645] Preemption disabled at:
| [   24.057530][  T645] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.057539][  T645] Tainted: [W]=WARN
[   24.057540][  T645] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.057541][  T645] Call Trace:
[   24.057543][  T645]  <TASK>
[   24.057544][  T645]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.057549][  T645]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.057551][  T645]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.057556][  T645]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.057559][  T645]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.057564][  T645]  __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))
[   24.057567][  T645]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.057573][  T645]  ? 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)
[   24.057576][  T645]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.057580][  T645]  put_chars (drivers/char/virtio_console.c:1176)
[   24.057587][  T645]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.057590][  T645]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.057596][  T645]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.057603][  T645]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.057605][  T645]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.057609][  T645]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.057613][  T645]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.057617][  T645]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.057618][  T645]  ? 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))
[   24.057621][  T645]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.057622][  T645]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.057627][  T645]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.057630][  T645]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.057632][  T645]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.057637][  T645]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.057640][  T645]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.057641][  T645]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.057643][  T645]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.057647][  T645]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.057649][  T645]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.057652][  T645]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.057656][  T645]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.057661][  T645]  ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip
[   24.057664][  T645]  _printk (kernel/printk/printk.c:2504)
[   24.057668][  T645]  ? snapshot_read.cold (user.c:?)
[   24.057674][  T645]  ? 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)
[   24.057678][  T645] 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
[   24.057683][  T645]  do_one_initcall (init/main.c:1357)
[   24.057686][  T645]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   24.057691][  T645]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   24.057694][  T645]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   24.057699][  T645]  do_init_module (kernel/module/main.c:3117)
[   24.057702][  T645]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   24.057707][  T645]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   24.057710][  T645]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   24.057714][  T645]  load_module (kernel/module/main.c:3593)
[   24.057721][  T645]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   24.057724][  T645]  ? __ia32_sys_fsconfig (??:?)
[   24.057728][  T645]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   24.057732][  T645]  ? backing_file_read_iter (fs/backing-file.c:211)
[   24.057736][  T645]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.057740][  T645]  init_module_from_file (kernel/module/main.c:3790)
[   24.057742][  T645]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   24.057750][  T645]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.057754][  T645]  ? 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)
[   24.057758][  T645]  idempotent_init_module (kernel/module/main.c:3802)
[   24.057761][  T645]  ? init_module_from_file (kernel/module/main.c:3791)
[   24.057767][  T645]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.057769][  T645]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   24.057774][  T645]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   24.057775][  T645]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.057780][  T645]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.057782][  T645]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.057785][  T645]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.057787][  T645] RIP: 0033:0x7fe0ca63337d
[   24.057790][  T645] 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
[   24.057792][  T645] RSP: 002b:00007ffe221ebeb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   24.057794][  T645] RAX: ffffffffffffffda RBX: 0000558ef0885810 RCX: 00007fe0ca63337d
[   24.057796][  T645] RDX: 0000000000000000 RSI: 0000558eeefb4ffd RDI: 0000000000000000
[   24.057797][  T645] RBP: 00007ffe221ebf50 R08: 0000000000000000 R09: 0000000000000000
[   24.057798][  T645] R10: 0000000000000000 R11: 0000000000000246 R12: 0000558eeefb4ffd
[   24.057798][  T645] R13: 0000558ef0885960 R14: 0000000000040000 R15: 0000000000000000
| [   27.416910][  T751] softirqs last disabled at (86442): llc_sap_open (./include/linux/spinlock.h:353 net/llc/llc_core.c:93) llc
| [   27.416913][  T751] Preemption disabled at:
| [   27.416913][  T751] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.416922][  T751] Tainted: [W]=WARN
[   27.416923][  T751] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.416925][  T751] Call Trace:
[   27.416926][  T751]  <TASK>
[   27.416928][  T751]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.416932][  T751]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.416934][  T751]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.416939][  T751]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.416942][  T751]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.416947][  T751]  __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))
[   27.416949][  T751]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.416955][  T751]  ? 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)
[   27.416959][  T751]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.416962][  T751]  put_chars (drivers/char/virtio_console.c:1176)
[   27.416965][  T751]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.416968][  T751]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.416973][  T751]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.416980][  T751]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.416982][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.416985][  T751]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.416990][  T751]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.416993][  T751]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.416994][  T751]  ? 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))
[   27.416997][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.416999][  T751]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.417003][  T751]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.417006][  T751]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.417007][  T751]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.417013][  T751]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.417015][  T751]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.417016][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.417018][  T751]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.417022][  T751]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.417024][  T751]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.417027][  T751]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.417030][  T751]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.417031][  T751]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.417034][  T751]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.417038][  T751]  ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip
[   27.417041][  T751]  _printk (kernel/printk/printk.c:2504)
[   27.417044][  T751]  ? snapshot_read.cold (user.c:?)
[   27.417046][  T751]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   27.417051][  T751]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   27.417055][  T751]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   27.417058][  T751] br_init (bridge.mod.c:?) bridge
[   27.417074][  T751]  do_one_initcall (init/main.c:1357)
[   27.417077][  T751]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   27.417082][  T751]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   27.417084][  T751]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   27.417089][  T751]  do_init_module (kernel/module/main.c:3117)
[   27.417092][  T751]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.417096][  T751]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   27.417098][  T751]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   27.417102][  T751]  load_module (kernel/module/main.c:3593)
[   27.417109][  T751]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   27.417114][  T751]  ? backing_file_read_iter (fs/backing-file.c:211)
[   27.417117][  T751]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.417121][  T751]  init_module_from_file (kernel/module/main.c:3790)
[   27.417124][  T751]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   27.417131][  T751]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.417135][  T751]  ? 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)
[   27.417138][  T751]  idempotent_init_module (kernel/module/main.c:3802)
[   27.417141][  T751]  ? init_module_from_file (kernel/module/main.c:3791)
[   27.417147][  T751]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.417149][  T751]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   27.417154][  T751]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   27.417155][  T751]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.417159][  T751]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.417161][  T751]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.417164][  T751]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.417166][  T751] RIP: 0033:0x7feb7951f37d
[   27.417170][  T751] 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
[   27.417172][  T751] RSP: 002b:00007ffe2b540528 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   27.417174][  T751] RAX: ffffffffffffffda RBX: 00005600cad11810 RCX: 00007feb7951f37d
[   27.417176][  T751] RDX: 0000000000000000 RSI: 00005600c0d9affd RDI: 0000000000000002
[   27.417177][  T751] RBP: 00007ffe2b5405c0 R08: 0000000000000000 R09: 0000000000000000
[   27.417178][  T751] R10: 0000000000000000 R11: 0000000000000246 R12: 00005600c0d9affd
[   27.417178][  T751] R13: 00005600cad119c0 R14: 0000000000040000 R15: 0000000000000000
| [   31.606886][  T875] softirqs last disabled at (16484): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   31.606889][  T875] Preemption disabled at:
| [   31.606889][  T875] vprintk_emit (kernel/printk/printk.c:2471)
| [   31.606898][  T875] Tainted: [W]=WARN
[   31.606899][  T875] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.606900][  T875] Call Trace:
[   31.606902][  T875]  <TASK>
[   31.606904][  T875]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.606908][  T875]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   31.606910][  T875]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.606914][  T875]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.606918][  T875]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.606923][  T875]  __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))
[   31.606925][  T875]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.606932][  T875]  ? 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)
[   31.606934][  T875]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.606938][  T875]  put_chars (drivers/char/virtio_console.c:1176)
[   31.606940][  T875]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   31.606942][  T875]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.606946][  T875]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.606949][  T875]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.606952][  T875]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.606956][  T875]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.606960][  T875]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   31.606962][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.606964][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.606968][  T875]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.606970][  T875]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   31.606973][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.606975][  T875]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.606980][  T875]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.606983][  T875]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.606984][  T875]  ? 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))
[   31.606987][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.606989][  T875]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.606993][  T875]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.606997][  T875]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.606998][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.607004][  T875]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.607006][  T875]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.607007][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.607009][  T875]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   31.607013][  T875]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.607015][  T875]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.607018][  T875]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.607021][  T875]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.607023][  T875]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   31.607024][  T875]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.607027][  T875]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.607028][  T875]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.607030][  T875]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   31.607032][  T875]  ? ___sys_sendmsg (net/socket.c:2767)
[   31.607034][  T875]  ? __sys_sendmsg (net/socket.c:2799)
[   31.607038][  T875]  _printk (kernel/printk/printk.c:2504)
[   31.607041][  T875]  ? snapshot_read.cold (user.c:?)
[   31.607046][  T875]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   31.607049][  T875]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   31.607053][  T875]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   31.607055][  T875]  ? netdev_notice (net/core/dev.c:13194)
[   31.607060][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.607062][  T875]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   31.607064][  T875]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   31.607066][  T875]  ? 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)
[   31.607070][  T875]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   31.607074][  T875]  dev_set_allmulti (net/core/dev_api.c:315)
[   31.607078][  T875] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   31.607094][  T875] br_del_if (net/bridge/br_if.c:732) bridge
[   31.607102][  T875]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   31.607106][  T875]  do_set_master (net/core/rtnetlink.c:3055)
[   31.607110][  T875]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   31.607114][  T875]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   31.607117][  T875]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   31.607119][  T875]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   31.607121][  T875]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.607124][  T875]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.607127][  T875]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.607129][  T875]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.607132][  T875]  ? kasan_save_stack (mm/kasan/common.c:58)
[   31.607134][  T875]  ? kasan_save_stack (mm/kasan/common.c:57)
[   31.607136][  T875]  ? kasan_save_track (mm/kasan/common.c:78)
[   31.607139][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.607143][  T875]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   31.607145][  T875]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   31.607148][  T875]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.607150][  T875]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.607153][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.607155][  T875]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.607157][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.607158][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.607160][  T875]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   31.607163][  T875]  ? __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)
[   31.607166][  T875]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   31.607169][  T875]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.607172][  T875]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   31.607174][  T875]  ? nla_get_range_signed (lib/nlattr.c:270)
[   31.607180][  T875]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   31.607185][  T875]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   31.607190][  T875]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.607192][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.607197][  T875]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.607199][  T875]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.607201][  T875]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.607203][  T875]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.607207][  T875]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.607209][  T875]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   31.607212][  T875]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.607213][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.607218][  T875]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.607220][  T875]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.607224][  T875]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.607225][  T875]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.607228][  T875]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.607234][  T875]  ? 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))
[   31.607236][  T875]  ? 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))
[   31.607240][  T875]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.607244][  T875]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.607246][  T875]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   31.607250][  T875]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.607254][  T875]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   31.607256][  T875]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.607259][  T875]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   31.607263][  T875]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   31.607267][  T875]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   31.607269][  T875]  ? copy_msghdr_from_user (net/socket.c:2650)
[   31.607271][  T875]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   31.607273][  T875]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   31.607280][  T875]  ___sys_sendmsg (net/socket.c:2767)
[   31.607283][  T875]  ? copy_msghdr_from_user (net/socket.c:2619)
[   31.607299][  T875]  __sys_sendmsg (net/socket.c:2799)
[   31.607301][  T875]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   31.607307][  T875]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.607311][  T875]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   31.607313][  T875]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   31.607316][  T875]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.607318][  T875] RIP: 0033:0x7f0f5db1254e
[   31.607322][  T875] 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
[   31.607324][  T875] RSP: 002b:00007fffc36085f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.607326][  T875] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0f5db1254e
[   31.607328][  T875] RDX: 0000000000000000 RSI: 00007fffc36086a0 RDI: 0000000000000005
[   31.607329][  T875] RBP: 00007fffc3608600 R08: 0000000000000000 R09: 0000000000000000
[   31.607330][  T875] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c2b
[   31.607330][  T875] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffc3608d70
| [   33.111885][   T72] softirqs last disabled at (52178): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   33.111893][   T72] Preemption disabled at:
| [   33.111894][   T72] 0x0
| [   33.111904][   T72] Tainted: [W]=WARN
[   33.111905][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.111907][   T72] Workqueue: events netdev_work_proc
[   33.111910][   T72] Call Trace:
[   33.111912][   T72]  <TASK>
[   33.111914][   T72]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   33.111919][   T72]  __might_resched.cold (kernel/sched/core.c:9234)
[   33.111924][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   33.111928][   T72]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   33.111933][   T72]  __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))
[   33.111935][   T72]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.111942][   T72]  ? 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)
[   33.111945][   T72]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   33.111948][   T72]  put_chars (drivers/char/virtio_console.c:1176)
[   33.111951][   T72]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   33.111958][   T72]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   33.111965][   T72]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   33.111968][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.111973][   T72]  console_emit_next_record (kernel/printk/printk.c:3183)
[   33.111976][   T72]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   33.111978][   T72]  ? 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))
[   33.111980][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.111984][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.111988][   T72]  console_flush_one_record (kernel/printk/printk.c:3268)
[   33.111992][   T72]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   33.111994][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   33.111999][   T72]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   33.112002][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   33.112003][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.112005][   T72]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   33.112009][   T72]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   33.112011][   T72]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   33.112014][   T72]  vprintk_emit (kernel/printk/printk.c:2479)
[   33.112018][   T72]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   33.112020][   T72]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   33.112025][   T72]  _printk (kernel/printk/printk.c:2504)
[   33.112029][   T72]  ? snapshot_read.cold (user.c:?)
[   33.112031][   T72]  ? kthread_stop_put (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:949 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:401 (discriminator 4) ./include/linux/refcount.h:389 (discriminator 4) ./include/linux/refcount.h:432 (discriminator 4) ./include/linux/refcount.h:450 (discriminator 4) ./include/linux/sched/task.h:131 (discriminator 4) kernel/kthread.c:782 (discriminator 4))
[   33.112039][   T72] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   33.112051][   T72] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   33.112060][   T72] br_device_event (net/bridge/br.c:111) bridge
[   33.112070][   T72]  ? 0xffffffffc0c00000
[   33.112075][   T72]  notifier_call_chain (kernel/notifier.c:85)
[   33.112081][   T72]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   33.112087][   T72]  ? netif_change_name (net/core/dev.c:1517)
[   33.112091][   T72]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   33.112092][   T72]  ? ref_tracker_alloc (lib/ref_tracker.c:283)
[   33.112097][   T72]  ? process_one_work (kernel/workqueue.c:3387)
[   33.112098][   T72]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   33.112099][   T72]  ? kthread (kernel/kthread.c:436)
[   33.112101][   T72]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   33.112104][   T72]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   33.112109][   T72]  netif_change_flags (net/core/dev.c:9882)
[   33.112113][   T72] vlan_dev_work (net/8021q/vlan_dev.c:1035) 8021q
[   33.112118][   T72]  netdev_work_proc (net/core/netdev_work.c:127 net/core/netdev_work.c:171)
[   33.112121][   T72]  ? netdev_work_sched (net/core/netdev_work.c:82)
[   33.112123][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.112125][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   33.112127][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   33.112130][   T72]  process_one_work (kernel/workqueue.c:3387)
[   33.112136][   T72]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   33.112139][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   33.112147][   T72]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   33.112150][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.112152][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   33.112155][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.112157][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   33.112159][   T72]  kthread (kernel/kthread.c:436)
[   33.112161][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   33.112164][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   33.112167][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   33.112170][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   33.112173][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   33.112176][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   33.112179][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   34.208548][  T955] softirqs last disabled at (18931): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   34.208551][  T955] Preemption disabled at:
| [   34.208552][  T955] vprintk_emit (kernel/printk/printk.c:2471)
| [   34.208560][  T955] Tainted: [W]=WARN
[   34.208561][  T955] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.208563][  T955] Call Trace:
[   34.208564][  T955]  <TASK>
[   34.208566][  T955]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   34.208570][  T955]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   34.208572][  T955]  __might_resched.cold (kernel/sched/core.c:9234)
[   34.208576][  T955]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   34.208580][  T955]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   34.208585][  T955]  __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))
[   34.208587][  T955]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.208594][  T955]  ? 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)
[   34.208597][  T955]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   34.208600][  T955]  put_chars (drivers/char/virtio_console.c:1176)
[   34.208603][  T955]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   34.208605][  T955]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   34.208609][  T955]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   34.208612][  T955]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   34.208616][  T955]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   34.208624][  T955]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.208629][  T955]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   34.208632][  T955]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.208636][  T955]  console_emit_next_record (kernel/printk/printk.c:3183)
[   34.208640][  T955]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   34.208641][  T955]  ? 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))
[   34.208644][  T955]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.208645][  T955]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   34.208649][  T955]  console_flush_one_record (kernel/printk/printk.c:3268)
[   34.208653][  T955]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   34.208654][  T955]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   34.208659][  T955]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   34.208662][  T955]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   34.208663][  T955]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.208665][  T955]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   34.208668][  T955]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   34.208670][  T955]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   34.208673][  T955]  vprintk_emit (kernel/printk/printk.c:2479)
[   34.208677][  T955]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   34.208682][  T955]  ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip
[   34.208685][  T955]  _printk (kernel/printk/printk.c:2504)
[   34.208689][  T955]  ? snapshot_read.cold (user.c:?)
[   34.208695][  T955]  ? 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)
[   34.208699][  T955] xfrm_user_init (xfrm_user.mod.c:?) xfrm_user
[   34.208702][  T955]  do_one_initcall (init/main.c:1357)
[   34.208705][  T955]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   34.208710][  T955]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   34.208712][  T955]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   34.208717][  T955]  do_init_module (kernel/module/main.c:3117)
[   34.208720][  T955]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   34.208725][  T955]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   34.208728][  T955]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   34.208732][  T955]  load_module (kernel/module/main.c:3593)
[   34.208739][  T955]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   34.208743][  T955]  ? backing_file_read_iter (fs/backing-file.c:211)
[   34.208747][  T955]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   34.208750][  T955]  init_module_from_file (kernel/module/main.c:3790)
[   34.208753][  T955]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   34.208760][  T955]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   34.208764][  T955]  ? 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)
[   34.208767][  T955]  idempotent_init_module (kernel/module/main.c:3802)
[   34.208770][  T955]  ? init_module_from_file (kernel/module/main.c:3791)
[   34.208775][  T955]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   34.208777][  T955]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   34.208783][  T955]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   34.208784][  T955]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   34.208788][  T955]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   34.208790][  T955]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   34.208793][  T955]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   34.208795][  T955] RIP: 0033:0x7f398270637d
[   34.208798][  T955] 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
[   34.208800][  T955] RSP: 002b:00007ffd06e4ace8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   34.208803][  T955] RAX: ffffffffffffffda RBX: 00005635ebbff810 RCX: 00007f398270637d
[   34.208804][  T955] RDX: 0000000000000000 RSI: 00005635eb8d8ffd RDI: 0000000000000000
[   34.208805][  T955] RBP: 00007ffd06e4ad80 R08: 0000000000000000 R09: 0000000000000000
[   34.208806][  T955] R10: 0000000000000000 R11: 0000000000000246 R12: 00005635eb8d8ffd
[   34.208807][  T955] R13: 00005635ebbff960 R14: 0000000000040000 R15: 0000000000000000
| [   72.779923][ T1584] softirqs last disabled at (19166): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   72.779926][ T1584] Preemption disabled at:
| [   72.779926][ T1584] vprintk_emit (kernel/printk/printk.c:2471)
| [   72.779935][ T1584] Tainted: [W]=WARN
[   72.779936][ T1584] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   72.779937][ T1584] Call Trace:
[   72.779938][ T1584]  <TASK>
[   72.779940][ T1584]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   72.779945][ T1584]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   72.779947][ T1584]  __might_resched.cold (kernel/sched/core.c:9234)
[   72.779951][ T1584]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   72.779954][ T1584]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   72.779959][ T1584]  __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))
[   72.779962][ T1584]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   72.779968][ T1584]  ? 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)
[   72.779971][ T1584]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   72.779975][ T1584]  put_chars (drivers/char/virtio_console.c:1176)
[   72.779977][ T1584]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   72.779980][ T1584]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   72.779984][ T1584]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   72.779987][ T1584]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   72.779991][ T1584]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   72.779995][ T1584]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   72.779997][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.779998][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.780003][ T1584]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   72.780004][ T1584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   72.780009][ T1584]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   72.780013][ T1584]  console_emit_next_record (kernel/printk/printk.c:3183)
[   72.780016][ T1584]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   72.780018][ T1584]  ? 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))
[   72.780020][ T1584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.780023][ T1584]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   72.780027][ T1584]  console_flush_one_record (kernel/printk/printk.c:3268)
[   72.780031][ T1584]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   72.780032][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.780038][ T1584]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   72.780040][ T1584]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   72.780041][ T1584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.780043][ T1584]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   72.780047][ T1584]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   72.780049][ T1584]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   72.780052][ T1584]  vprintk_emit (kernel/printk/printk.c:2479)
[   72.780056][ T1584]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   72.780058][ T1584]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   72.780061][ T1584]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   72.780065][ T1584]  _printk (kernel/printk/printk.c:2504)
[   72.780068][ T1584]  ? snapshot_read.cold (user.c:?)
[   72.780072][ T1584]  ? br_multicast_flood (??:?) bridge
[   72.780085][ T1584]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   72.780086][ T1584]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   72.780087][ T1584]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   72.780092][ T1584] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   72.780103][ T1584] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   72.780112][ T1584] new_nbp (net/bridge/br_if.c:449) bridge
[   72.780121][ T1584] br_add_if (net/bridge/br_if.c:592) bridge
[   72.780128][ T1584]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   72.780133][ T1584]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   72.780139][ T1584]  do_set_master (net/core/rtnetlink.c:3071)
[   72.780144][ T1584]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   72.780147][ T1584]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   72.780151][ T1584]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   72.780152][ T1584]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   72.780154][ T1584]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   72.780158][ T1584]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   72.780160][ T1584]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   72.780162][ T1584]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   72.780165][ T1584]  ? kasan_save_stack (mm/kasan/common.c:58)
[   72.780168][ T1584]  ? kasan_save_stack (mm/kasan/common.c:57)
[   72.780169][ T1584]  ? kasan_save_track (mm/kasan/common.c:78)
[   72.780172][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.780174][ T1584]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   72.780177][ T1584]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   72.780182][ T1584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   72.780184][ T1584]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   72.780186][ T1584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.780188][ T1584]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   72.780190][ T1584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.780191][ T1584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.780193][ T1584]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   72.780195][ T1584]  ? __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)
[   72.780199][ T1584]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   72.780201][ T1584]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   72.780205][ T1584]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   72.780206][ T1584]  ? nla_get_range_signed (lib/nlattr.c:270)
[   72.780212][ T1584]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   72.780219][ T1584]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   72.780225][ T1584]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   72.780227][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.780231][ T1584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   72.780234][ T1584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   72.780236][ T1584]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   72.780238][ T1584]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   72.780242][ T1584]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   72.780244][ T1584]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   72.780247][ T1584]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   72.780248][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   72.780252][ T1584]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   72.780254][ T1584]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   72.780258][ T1584]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   72.780260][ T1584]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   72.780263][ T1584]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   72.780269][ T1584]  ? 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))
[   72.780270][ T1584]  ? 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))
[   72.780274][ T1584]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   72.780278][ T1584]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   72.780281][ T1584]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   72.780285][ T1584]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   72.780289][ T1584]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   72.780290][ T1584]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   72.780293][ T1584]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   72.780297][ T1584]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   72.780301][ T1584]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   72.780303][ T1584]  ? copy_msghdr_from_user (net/socket.c:2650)
[   72.780305][ T1584]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   72.780307][ T1584]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   72.780314][ T1584]  ___sys_sendmsg (net/socket.c:2767)
[   72.780317][ T1584]  ? copy_msghdr_from_user (net/socket.c:2619)
[   72.780332][ T1584]  __sys_sendmsg (net/socket.c:2799)
[   72.780335][ T1584]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   72.780341][ T1584]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   72.780344][ T1584]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   72.780347][ T1584]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   72.780350][ T1584]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   72.780353][ T1584] RIP: 0033:0x7fe5a7b5f54e
[   72.780356][ T1584] 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
[   72.780358][ T1584] RSP: 002b:00007ffd137d45f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   72.780360][ T1584] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe5a7b5f54e
[   72.780362][ T1584] RDX: 0000000000000000 RSI: 00007ffd137d46a0 RDI: 0000000000000005
[   72.780362][ T1584] RBP: 00007ffd137d4600 R08: 0000000000000000 R09: 0000000000000000
[   72.780363][ T1584] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c54
[   72.780364][ T1584] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd137d4d70
| [   82.480708][ T1712] softirqs last disabled at (18162): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   82.480710][ T1712] Preemption disabled at:
| [   82.480711][ T1712] vprintk_emit (kernel/printk/printk.c:2471)
| [   82.480720][ T1712] Tainted: [W]=WARN
[   82.480721][ T1712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.480723][ T1712] Call Trace:
[   82.480724][ T1712]  <TASK>
[   82.480726][ T1712]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   82.480731][ T1712]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   82.480732][ T1712]  __might_resched.cold (kernel/sched/core.c:9234)
[   82.480737][ T1712]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   82.480740][ T1712]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   82.480746][ T1712]  __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))
[   82.480748][ T1712]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.480754][ T1712]  ? 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)
[   82.480757][ T1712]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.480761][ T1712]  put_chars (drivers/char/virtio_console.c:1176)
[   82.480763][ T1712]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   82.480765][ T1712]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   82.480769][ T1712]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.480772][ T1712]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.480775][ T1712]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.480779][ T1712]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   82.480783][ T1712]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   82.480785][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.480787][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.480791][ T1712]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   82.480793][ T1712]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   82.480802][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480805][ T1712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.480809][ T1712]  console_emit_next_record (kernel/printk/printk.c:3183)
[   82.480812][ T1712]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   82.480813][ T1712]  ? 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))
[   82.480816][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480818][ T1712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.480822][ T1712]  console_flush_one_record (kernel/printk/printk.c:3268)
[   82.480825][ T1712]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   82.480827][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.480832][ T1712]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   82.480834][ T1712]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   82.480836][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480837][ T1712]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   82.480841][ T1712]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   82.480843][ T1712]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   82.480846][ T1712]  vprintk_emit (kernel/printk/printk.c:2479)
[   82.480849][ T1712]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   82.480850][ T1712]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.480852][ T1712]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   82.480855][ T1712]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   82.480856][ T1712]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   82.480857][ T1712]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   82.480860][ T1712]  ? ___sys_sendmsg (net/socket.c:2767)
[   82.480861][ T1712]  ? __sys_sendmsg (net/socket.c:2799)
[   82.480865][ T1712]  _printk (kernel/printk/printk.c:2504)
[   82.480869][ T1712]  ? snapshot_read.cold (user.c:?)
[   82.480873][ T1712]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   82.480876][ T1712]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   82.480880][ T1712]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   82.480883][ T1712]  ? netdev_notice (net/core/dev.c:13194)
[   82.480887][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480888][ T1712]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   82.480891][ T1712]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   82.480893][ T1712]  ? 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)
[   82.480896][ T1712]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   82.480900][ T1712]  dev_set_allmulti (net/core/dev_api.c:315)
[   82.480904][ T1712] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   82.480921][ T1712] br_del_if (net/bridge/br_if.c:732) bridge
[   82.480928][ T1712]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   82.480933][ T1712]  do_set_master (net/core/rtnetlink.c:3055)
[   82.480937][ T1712]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   82.480940][ T1712]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   82.480944][ T1712]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   82.480945][ T1712]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   82.480947][ T1712]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   82.480951][ T1712]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.480953][ T1712]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.480955][ T1712]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.480958][ T1712]  ? kasan_save_stack (mm/kasan/common.c:58)
[   82.480960][ T1712]  ? kasan_save_stack (mm/kasan/common.c:57)
[   82.480962][ T1712]  ? kasan_save_track (mm/kasan/common.c:78)
[   82.480965][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.480967][ T1712]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   82.480969][ T1712]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   82.480972][ T1712]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.480974][ T1712]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.480977][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480979][ T1712]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.480980][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480982][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.480983][ T1712]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   82.480986][ T1712]  ? __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)
[   82.480989][ T1712]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   82.480992][ T1712]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.480995][ T1712]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   82.480997][ T1712]  ? nla_get_range_signed (lib/nlattr.c:270)
[   82.481002][ T1712]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   82.481007][ T1712]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.481013][ T1712]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.481015][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.481019][ T1712]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.481021][ T1712]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.481023][ T1712]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.481025][ T1712]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.481029][ T1712]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.481031][ T1712]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   82.481034][ T1712]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.481035][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.481040][ T1712]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.481042][ T1712]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.481045][ T1712]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   82.481047][ T1712]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.481050][ T1712]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   82.481056][ T1712]  ? 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))
[   82.481057][ T1712]  ? 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))
[   82.481061][ T1712]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   82.481065][ T1712]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   82.481067][ T1712]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   82.481071][ T1712]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   82.481075][ T1712]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   82.481076][ T1712]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.481079][ T1712]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   82.481083][ T1712]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   82.481087][ T1712]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   82.481089][ T1712]  ? copy_msghdr_from_user (net/socket.c:2650)
[   82.481091][ T1712]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   82.481093][ T1712]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   82.481100][ T1712]  ___sys_sendmsg (net/socket.c:2767)
[   82.481103][ T1712]  ? copy_msghdr_from_user (net/socket.c:2619)
[   82.481118][ T1712]  __sys_sendmsg (net/socket.c:2799)
[   82.481121][ T1712]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   82.481127][ T1712]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.481130][ T1712]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   82.481132][ T1712]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   82.481135][ T1712]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.481138][ T1712] RIP: 0033:0x7f816e60f54e
[   82.481141][ T1712] 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
[   82.481143][ T1712] RSP: 002b:00007ffc8dd66f60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   82.481146][ T1712] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f816e60f54e
[   82.481147][ T1712] RDX: 0000000000000000 RSI: 00007ffc8dd67010 RDI: 0000000000000005
[   82.481148][ T1712] RBP: 00007ffc8dd66f70 R08: 0000000000000000 R09: 0000000000000000
[   82.481149][ T1712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918c5d
[   82.481149][ T1712] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8dd676e0
| [   87.694123][   T67] softirqs last disabled at (67228): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   87.694131][   T67] Preemption disabled at:
| [   87.694131][   T67] 0x0
| [   87.694141][   T67] Tainted: [W]=WARN
[   87.694142][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.694144][   T67] Workqueue: events netdev_work_proc
[   87.694147][   T67] Call Trace:
[   87.694149][   T67]  <TASK>
[   87.694150][   T67]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.694156][   T67]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.694160][   T67]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.694163][   T67]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   87.694169][   T67]  __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))
[   87.694171][   T67]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.694178][   T67]  ? 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)
[   87.694181][   T67]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.694184][   T67]  put_chars (drivers/char/virtio_console.c:1176)
[   87.694187][   T67]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.694194][   T67]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.694201][   T67]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.694204][   T67]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.694208][   T67]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.694212][   T67]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.694213][   T67]  ? 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))
[   87.694216][   T67]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.694222][   T67]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.694226][   T67]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.694230][   T67]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.694231][   T67]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   87.694237][   T67]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.694239][   T67]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.694241][   T67]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.694243][   T67]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   87.694247][   T67]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.694248][   T67]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.694251][   T67]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.694256][   T67]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.694258][   T67]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   87.694260][   T67]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   87.694262][   T67]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   87.694267][   T67]  _printk (kernel/printk/printk.c:2504)
[   87.694271][   T67]  ? snapshot_read.cold (user.c:?)
[   87.694274][   T67]  ? kthread_stop_put (./arch/x86/include/asm/atomic.h:93 (discriminator 4) ./include/linux/atomic/atomic-arch-fallback.h:949 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:401 (discriminator 4) ./include/linux/refcount.h:389 (discriminator 4) ./include/linux/refcount.h:432 (discriminator 4) ./include/linux/refcount.h:450 (discriminator 4) ./include/linux/sched/task.h:131 (discriminator 4) kernel/kthread.c:782 (discriminator 4))
[   87.694281][   T67] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   87.694292][   T67] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   87.694302][   T67] br_device_event (net/bridge/br.c:111) bridge
[   87.694311][   T67]  ? 0xffffffffc0c00000
[   87.694317][   T67]  notifier_call_chain (kernel/notifier.c:85)
[   87.694322][   T67]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   87.694328][   T67]  ? netif_change_name (net/core/dev.c:1517)
[   87.694332][   T67]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   87.694334][   T67]  ? ref_tracker_alloc (lib/ref_tracker.c:283)
[   87.694338][   T67]  ? process_one_work (kernel/workqueue.c:3387)
[   87.694339][   T67]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   87.694340][   T67]  ? kthread (kernel/kthread.c:436)
[   87.694342][   T67]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   87.694345][   T67]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   87.694350][   T67]  netif_change_flags (net/core/dev.c:9882)
[   87.694354][   T67] vlan_dev_work (net/8021q/vlan_dev.c:1035) 8021q
[   87.694359][   T67]  netdev_work_proc (net/core/netdev_work.c:127 net/core/netdev_work.c:171)
[   87.694361][   T67]  ? netdev_work_sched (net/core/netdev_work.c:82)
[   87.694363][   T67]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.694365][   T67]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.694367][   T67]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.694371][   T67]  process_one_work (kernel/workqueue.c:3387)
[   87.694377][   T67]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   87.694379][   T67]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   87.694387][   T67]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   87.694390][   T67]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   87.694392][   T67]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   87.694395][   T67]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   87.694397][   T67]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   87.694399][   T67]  kthread (kernel/kthread.c:436)
[   87.694401][   T67]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.694404][   T67]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   87.694407][   T67]  ret_from_fork (arch/x86/kernel/process.c:158)
[   87.694410][   T67]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   87.694413][   T67]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   87.694416][   T67]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
llc_sap_open:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars