======================================
| [   19.923052][  T556] softirqs last disabled at (33245): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.923054][  T556] Preemption disabled at:
| [   19.923055][  T556] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.923064][  T556] Tainted: [W]=WARN
[   19.923065][  T556] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.923067][  T556] Call Trace:
[   19.923069][  T556]  <TASK>
[   19.923070][  T556]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.923075][  T556]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.923077][  T556]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.923082][  T556]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.923085][  T556]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.923090][  T556]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   19.923093][  T556]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.923099][  T556]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.923102][  T556]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.923106][  T556]  put_chars (drivers/char/virtio_console.c:1176)
[   19.923109][  T556]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.923112][  T556]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.923117][  T556]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.923124][  T556]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.923127][  T556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.923130][  T556]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.923135][  T556]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.923138][  T556]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.923139][  T556]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   19.923142][  T556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.923144][  T556]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.923148][  T556]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.923152][  T556]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.923153][  T556]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.923159][  T556]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.923161][  T556]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.923163][  T556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.923165][  T556]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.923169][  T556]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.923171][  T556]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.923174][  T556]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.923177][  T556]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.923183][  T556]  ? ipip_fini (net/ipv4/ipip.c:441 (discriminator 1)) ipip
[   19.923186][  T556]  _printk (kernel/printk/printk.c:2504)
[   19.923189][  T556]  ? snapshot_read.cold (user.c:?)
[   19.923196][  T556]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   19.923199][  T556] ipip_init (net/ipv4/ipip.c:438) ipip
[   19.923202][  T556]  do_one_initcall (init/main.c:1357)
[   19.923205][  T556]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   19.923210][  T556]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   19.923213][  T556]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   19.923217][  T556]  do_init_module (kernel/module/main.c:3117)
[   19.923221][  T556]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   19.923226][  T556]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   19.923229][  T556]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   19.923233][  T556]  load_module (kernel/module/main.c:3593)
[   19.923240][  T556]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   19.923243][  T556]  ? __ia32_sys_fsconfig (??:?)
[   19.923246][  T556]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   19.923251][  T556]  ? backing_file_read_iter (fs/backing-file.c:211)
[   19.923254][  T556]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.923258][  T556]  init_module_from_file (kernel/module/main.c:3790)
[   19.923260][  T556]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   19.923268][  T556]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.923272][  T556]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   19.923275][  T556]  idempotent_init_module (kernel/module/main.c:3802)
[   19.923278][  T556]  ? init_module_from_file (kernel/module/main.c:3791)
[   19.923284][  T556]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.923286][  T556]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   19.923291][  T556]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   19.923293][  T556]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   19.923297][  T556]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.923299][  T556]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.923302][  T556]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.923305][  T556] RIP: 0033:0x7f878fe1737d
[   19.923308][  T556] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   19.923310][  T556] RSP: 002b:00007ffc1dff4858 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   19.923312][  T556] RAX: ffffffffffffffda RBX: 000055ea7badf810 RCX: 00007f878fe1737d
[   19.923314][  T556] RDX: 0000000000000000 RSI: 000055ea7ae4affd RDI: 0000000000000002
[   19.923314][  T556] RBP: 00007ffc1dff48f0 R08: 0000000000000000 R09: 0000000000000000
[   19.923315][  T556] R10: 0000000000000000 R11: 0000000000000246 R12: 000055ea7ae4affd
[   19.923316][  T556] R13: 000055ea7badf9b0 R14: 0000000000040000 R15: 0000000000000000
| [   22.740872][  T662] softirqs last disabled at (25763): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   22.740875][  T662] Preemption disabled at:
| [   22.740875][  T662] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.740885][  T662] Tainted: [W]=WARN
[   22.740886][  T662] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.740887][  T662] Call Trace:
[   22.740889][  T662]  <TASK>
[   22.740890][  T662]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.740895][  T662]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.740897][  T662]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.740902][  T662]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.740905][  T662]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.740911][  T662]  __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))
[   22.740913][  T662]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.740920][  T662]  ? 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)
[   22.740923][  T662]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.740926][  T662]  put_chars (drivers/char/virtio_console.c:1176)
[   22.740929][  T662]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.740933][  T662]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.740938][  T662]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.740946][  T662]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.740948][  T662]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.740952][  T662]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.740956][  T662]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.740960][  T662]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.740961][  T662]  ? 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))
[   22.740964][  T662]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.740966][  T662]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.740970][  T662]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.740974][  T662]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.740975][  T662]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.740981][  T662]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.740984][  T662]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.740985][  T662]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.740987][  T662]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.740991][  T662]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.740993][  T662]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.740996][  T662]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.741000][  T662]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.741006][  T662]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   22.741009][  T662]  _printk (kernel/printk/printk.c:2504)
[   22.741013][  T662]  ? snapshot_read.cold (user.c:?)
[   22.741020][  T662]  ? 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)
[   22.741023][  T662] 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
[   22.741027][  T662]  do_one_initcall (init/main.c:1357)
[   22.741030][  T662]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   22.741035][  T662]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   22.741037][  T662]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   22.741042][  T662]  do_init_module (kernel/module/main.c:3117)
[   22.741046][  T662]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   22.741051][  T662]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   22.741053][  T662]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   22.741058][  T662]  load_module (kernel/module/main.c:3593)
[   22.741065][  T662]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   22.741069][  T662]  ? __ia32_sys_fsconfig (??:?)
[   22.741071][  T662]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   22.741076][  T662]  ? backing_file_read_iter (fs/backing-file.c:211)
[   22.741079][  T662]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.741083][  T662]  init_module_from_file (kernel/module/main.c:3790)
[   22.741086][  T662]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   22.741094][  T662]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   22.741098][  T662]  ? 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)
[   22.741101][  T662]  idempotent_init_module (kernel/module/main.c:3802)
[   22.741104][  T662]  ? init_module_from_file (kernel/module/main.c:3791)
[   22.741111][  T662]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.741112][  T662]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   22.741118][  T662]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   22.741119][  T662]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.741123][  T662]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.741125][  T662]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.741128][  T662]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.741130][  T662] RIP: 0033:0x7f68f43d737d
[   22.741134][  T662] 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
[   22.741135][  T662] RSP: 002b:00007ffe3cd141a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   22.741138][  T662] RAX: ffffffffffffffda RBX: 000055e55039d810 RCX: 00007f68f43d737d
[   22.741140][  T662] RDX: 0000000000000000 RSI: 000055e528fcaffd RDI: 0000000000000000
[   22.741140][  T662] RBP: 00007ffe3cd14240 R08: 0000000000000000 R09: 0000000000000000
[   22.741141][  T662] R10: 0000000000000000 R11: 0000000000000246 R12: 000055e528fcaffd
[   22.741142][  T662] R13: 000055e55039d960 R14: 0000000000040000 R15: 0000000000000000
| [   25.746020][  T773] softirqs last disabled at (77876): llc_sap_open (./include/linux/spinlock.h:353 net/llc/llc_core.c:93) llc
| [   25.746022][  T773] Preemption disabled at:
| [   25.746023][  T773] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.746032][  T773] Tainted: [W]=WARN
[   25.746033][  T773] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.746035][  T773] Call Trace:
[   25.746036][  T773]  <TASK>
[   25.746038][  T773]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.746043][  T773]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.746045][  T773]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.746049][  T773]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.746052][  T773]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.746058][  T773]  __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))
[   25.746060][  T773]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.746066][  T773]  ? 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)
[   25.746069][  T773]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.746073][  T773]  put_chars (drivers/char/virtio_console.c:1176)
[   25.746076][  T773]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.746079][  T773]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.746085][  T773]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.746092][  T773]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.746095][  T773]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.746098][  T773]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.746102][  T773]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.746106][  T773]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.746107][  T773]  ? 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))
[   25.746110][  T773]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.746112][  T773]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.746116][  T773]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.746120][  T773]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.746121][  T773]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.746127][  T773]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.746129][  T773]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.746131][  T773]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.746133][  T773]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.746136][  T773]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.746139][  T773]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.746142][  T773]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.746145][  T773]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.746147][  T773]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.746150][  T773]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.746153][  T773]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   25.746155][  T773]  _printk (kernel/printk/printk.c:2504)
[   25.746159][  T773]  ? snapshot_read.cold (user.c:?)
[   25.746161][  T773]  ? __mutex_unlock_slowpath (./include/linux/preempt.h:500 (discriminator 1) kernel/locking/mutex.c:999 (discriminator 1))
[   25.746166][  T773]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   25.746171][  T773]  ? __mutex_unlock_slowpath (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:4480 kernel/locking/mutex.c:1021)
[   25.746174][  T773] br_init (bridge.mod.c:?) bridge
[   25.746188][  T773]  do_one_initcall (init/main.c:1357)
[   25.746191][  T773]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   25.746196][  T773]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   25.746199][  T773]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   25.746204][  T773]  do_init_module (kernel/module/main.c:3117)
[   25.746207][  T773]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.746211][  T773]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   25.746214][  T773]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   25.746218][  T773]  load_module (kernel/module/main.c:3593)
[   25.746225][  T773]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   25.746230][  T773]  ? backing_file_read_iter (fs/backing-file.c:211)
[   25.746234][  T773]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.746238][  T773]  init_module_from_file (kernel/module/main.c:3790)
[   25.746240][  T773]  ? __ia32_sys_init_module (kernel/module/main.c:3647)
[   25.746248][  T773]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   25.746252][  T773]  ? 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)
[   25.746256][  T773]  idempotent_init_module (kernel/module/main.c:3802)
[   25.746259][  T773]  ? init_module_from_file (kernel/module/main.c:3791)
[   25.746265][  T773]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.746267][  T773]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   25.746272][  T773]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   25.746274][  T773]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.746278][  T773]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.746280][  T773]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.746283][  T773]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.746285][  T773] RIP: 0033:0x7f02d6fa637d
[   25.746289][  T773] 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
[   25.746291][  T773] RSP: 002b:00007ffe40dc2848 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   25.746293][  T773] RAX: ffffffffffffffda RBX: 000055fcacd1f810 RCX: 00007f02d6fa637d
[   25.746295][  T773] RDX: 0000000000000000 RSI: 000055fc8d351ffd RDI: 0000000000000002
[   25.746296][  T773] RBP: 00007ffe40dc28e0 R08: 0000000000000000 R09: 0000000000000000
[   25.746297][  T773] R10: 0000000000000000 R11: 0000000000000246 R12: 000055fc8d351ffd
[   25.746298][  T773] R13: 000055fcacd1f9c0 R14: 0000000000040000 R15: 0000000000000000
| [   29.945647][  T895] softirqs last disabled at (16576): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   29.945649][  T895] Preemption disabled at:
| [   29.945650][  T895] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.945659][  T895] Tainted: [W]=WARN
[   29.945660][  T895] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.945662][  T895] Call Trace:
[   29.945663][  T895]  <TASK>
[   29.945665][  T895]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.945670][  T895]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.945672][  T895]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.945677][  T895]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.945680][  T895]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.945685][  T895]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.945688][  T895]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.945694][  T895]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.945697][  T895]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.945700][  T895]  put_chars (drivers/char/virtio_console.c:1176)
[   29.945703][  T895]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   29.945705][  T895]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.945709][  T895]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.945712][  T895]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.945715][  T895]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.945719][  T895]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.945723][  T895]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   29.945725][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.945727][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.945731][  T895]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.945733][  T895]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   29.945736][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945739][  T895]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.945743][  T895]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.945746][  T895]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.945748][  T895]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.945751][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945752][  T895]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.945757][  T895]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.945760][  T895]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.945762][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.945767][  T895]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.945770][  T895]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.945771][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945773][  T895]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.945777][  T895]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.945779][  T895]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.945782][  T895]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.945785][  T895]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.945791][  T895]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.945793][  T895]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.945796][  T895]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.945797][  T895]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.945799][  T895]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.945801][  T895]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.945803][  T895]  ? __sys_sendmsg (net/socket.c:2799)
[   29.945807][  T895]  _printk (kernel/printk/printk.c:2504)
[   29.945811][  T895]  ? snapshot_read.cold (user.c:?)
[   29.945815][  T895]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.945819][  T895]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.945822][  T895]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.945825][  T895]  ? netdev_notice (net/core/dev.c:13194)
[   29.945829][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945831][  T895]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.945834][  T895]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.945836][  T895]  ? 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)
[   29.945839][  T895]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.945844][  T895]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.945848][  T895] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   29.945865][  T895] br_del_if (net/bridge/br_if.c:732) bridge
[   29.945873][  T895]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.945877][  T895]  do_set_master (net/core/rtnetlink.c:3055)
[   29.945882][  T895]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.945885][  T895]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.945889][  T895]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.945890][  T895]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.945892][  T895]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.945896][  T895]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.945898][  T895]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.945900][  T895]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.945903][  T895]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.945906][  T895]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.945908][  T895]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.945911][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.945913][  T895]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   29.945915][  T895]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   29.945919][  T895]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.945921][  T895]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.945923][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945925][  T895]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.945927][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945929][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.945930][  T895]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.945933][  T895]  ? __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)
[   29.945936][  T895]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.945939][  T895]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.945942][  T895]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.945944][  T895]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.945950][  T895]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.945955][  T895]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.945961][  T895]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.945962][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.945967][  T895]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.945969][  T895]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.945971][  T895]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.945973][  T895]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.945977][  T895]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.945980][  T895]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.945983][  T895]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.945984][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.945989][  T895]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.945991][  T895]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.945995][  T895]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.945997][  T895]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.945999][  T895]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.946006][  T895]  ? 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))
[   29.946007][  T895]  ? 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))
[   29.946011][  T895]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.946015][  T895]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.946018][  T895]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   29.946022][  T895]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.946026][  T895]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.946027][  T895]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.946031][  T895]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   29.946034][  T895]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   29.946038][  T895]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.946041][  T895]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.946043][  T895]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.946045][  T895]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   29.946052][  T895]  ___sys_sendmsg (net/socket.c:2767)
[   29.946055][  T895]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.946071][  T895]  __sys_sendmsg (net/socket.c:2799)
[   29.946074][  T895]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.946080][  T895]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.946084][  T895]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.946086][  T895]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.946090][  T895]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.946092][  T895] RIP: 0033:0x7ff30cc7b54e
[   29.946095][  T895] 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
[   29.946097][  T895] RSP: 002b:00007ffcc6079410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.946100][  T895] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff30cc7b54e
[   29.946101][  T895] RDX: 0000000000000000 RSI: 00007ffcc60794c0 RDI: 0000000000000005
[   29.946102][  T895] RBP: 00007ffcc6079420 R08: 0000000000000000 R09: 0000000000000000
[   29.946103][  T895] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9128a2
[   29.946104][  T895] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcc6079b90
| [   31.365993][   T29] softirqs last disabled at (30002): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   31.366001][   T29] Preemption disabled at:
| [   31.366002][   T29] 0x0
| [   31.366013][   T29] Tainted: [W]=WARN
[   31.366014][   T29] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.366015][   T29] Workqueue: events netdev_work_proc
[   31.366019][   T29] Call Trace:
[   31.366020][   T29]  <TASK>
[   31.366022][   T29]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.366028][   T29]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.366033][   T29]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.366036][   T29]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.366041][   T29]  __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))
[   31.366044][   T29]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.366050][   T29]  ? 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)
[   31.366053][   T29]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.366057][   T29]  put_chars (drivers/char/virtio_console.c:1176)
[   31.366060][   T29]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.366067][   T29]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.366074][   T29]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.366077][   T29]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.366082][   T29]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.366086][   T29]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.366087][   T29]  ? 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))
[   31.366090][   T29]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.366094][   T29]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.366098][   T29]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.366102][   T29]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.366103][   T29]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.366109][   T29]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.366112][   T29]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.366113][   T29]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.366115][   T29]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   31.366120][   T29]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.366122][   T29]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.366125][   T29]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.366129][   T29]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.366131][   T29]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.366136][   T29]  _printk (kernel/printk/printk.c:2504)
[   31.366140][   T29]  ? snapshot_read.cold (user.c:?)
[   31.366143][   T29]  ? 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))
[   31.366151][   T29] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   31.366164][   T29] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   31.366176][   T29] br_device_event (net/bridge/br.c:111) bridge
[   31.366185][   T29]  ? 0xffffffffc0c00000
[   31.366191][   T29]  notifier_call_chain (kernel/notifier.c:85)
[   31.366198][   T29]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   31.366203][   T29]  ? netif_change_name (net/core/dev.c:1517)
[   31.366207][   T29]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   31.366209][   T29]  ? ref_tracker_alloc (lib/ref_tracker.c:283)
[   31.366213][   T29]  ? process_one_work (kernel/workqueue.c:3387)
[   31.366214][   T29]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   31.366216][   T29]  ? kthread (kernel/kthread.c:436)
[   31.366217][   T29]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   31.366221][   T29]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   31.366225][   T29]  netif_change_flags (net/core/dev.c:9882)
[   31.366230][   T29] vlan_dev_work (net/8021q/vlan_dev.c:1035) 8021q
[   31.366235][   T29]  netdev_work_proc (net/core/netdev_work.c:127 net/core/netdev_work.c:171)
[   31.366238][   T29]  ? netdev_work_sched (net/core/netdev_work.c:82)
[   31.366240][   T29]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.366242][   T29]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.366244][   T29]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.366248][   T29]  process_one_work (kernel/workqueue.c:3387)
[   31.366254][   T29]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   31.366257][   T29]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.366265][   T29]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   31.366272][   T29]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   31.366273][   T29]  kthread (kernel/kthread.c:436)
[   31.366276][   T29]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   31.366279][   T29]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.366282][   T29]  ret_from_fork (arch/x86/kernel/process.c:158)
[   31.366285][   T29]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   31.366288][   T29]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   31.366292][   T29]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   31.366295][   T29]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   48.667121][ T1593] softirqs last disabled at (16858): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   48.667124][ T1593] Preemption disabled at:
| [   48.667124][ T1593] vprintk_emit (kernel/printk/printk.c:2471)
| [   48.667134][ T1593] Tainted: [W]=WARN
[   48.667135][ T1593] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   48.667137][ T1593] Call Trace:
[   48.667138][ T1593]  <TASK>
[   48.667140][ T1593]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   48.667145][ T1593]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   48.667147][ T1593]  __might_resched.cold (kernel/sched/core.c:9234)
[   48.667151][ T1593]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   48.667155][ T1593]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   48.667160][ T1593]  __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))
[   48.667162][ T1593]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.667168][ T1593]  ? 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)
[   48.667172][ T1593]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   48.667175][ T1593]  put_chars (drivers/char/virtio_console.c:1176)
[   48.667178][ T1593]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   48.667181][ T1593]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.667185][ T1593]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.667188][ T1593]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.667192][ T1593]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   48.667196][ T1593]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   48.667198][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.667200][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.667204][ T1593]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   48.667206][ T1593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.667211][ T1593]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.667215][ T1593]  console_emit_next_record (kernel/printk/printk.c:3183)
[   48.667219][ T1593]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   48.667220][ T1593]  ? 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))
[   48.667223][ T1593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.667225][ T1593]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.667229][ T1593]  console_flush_one_record (kernel/printk/printk.c:3268)
[   48.667233][ T1593]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   48.667234][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.667240][ T1593]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   48.667243][ T1593]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   48.667244][ T1593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.667246][ T1593]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   48.667250][ T1593]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   48.667252][ T1593]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   48.667255][ T1593]  vprintk_emit (kernel/printk/printk.c:2479)
[   48.667259][ T1593]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   48.667261][ T1593]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.667264][ T1593]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   48.667268][ T1593]  _printk (kernel/printk/printk.c:2504)
[   48.667272][ T1593]  ? snapshot_read.cold (user.c:?)
[   48.667276][ T1593]  ? br_multicast_flood (??:?) bridge
[   48.667289][ T1593]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   48.667290][ T1593]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.667291][ T1593]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.667296][ T1593] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   48.667308][ T1593] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   48.667316][ T1593] new_nbp (net/bridge/br_if.c:449) bridge
[   48.667326][ T1593] br_add_if (net/bridge/br_if.c:592) bridge
[   48.667333][ T1593]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   48.667338][ T1593]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   48.667344][ T1593]  do_set_master (net/core/rtnetlink.c:3071)
[   48.667349][ T1593]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   48.667353][ T1593]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   48.667356][ T1593]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   48.667357][ T1593]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   48.667361][ T1593]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   48.667366][ T1593]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   48.667368][ T1593]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   48.667370][ T1593]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   48.667373][ T1593]  ? kasan_save_stack (mm/kasan/common.c:58)
[   48.667376][ T1593]  ? kasan_save_stack (mm/kasan/common.c:57)
[   48.667378][ T1593]  ? kasan_save_track (mm/kasan/common.c:78)
[   48.667381][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.667383][ T1593]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   48.667386][ T1593]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   48.667390][ T1593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.667393][ T1593]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.667395][ T1593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.667397][ T1593]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   48.667399][ T1593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.667400][ T1593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.667402][ T1593]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   48.667404][ T1593]  ? __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)
[   48.667408][ T1593]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   48.667410][ T1593]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   48.667414][ T1593]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   48.667416][ T1593]  ? nla_get_range_signed (lib/nlattr.c:270)
[   48.667422][ T1593]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   48.667427][ T1593]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   48.667432][ T1593]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.667434][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.667439][ T1593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.667441][ T1593]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.667443][ T1593]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.667445][ T1593]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.667449][ T1593]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   48.667451][ T1593]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   48.667454][ T1593]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.667455][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   48.667460][ T1593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   48.667462][ T1593]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   48.667466][ T1593]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   48.667468][ T1593]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   48.667471][ T1593]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   48.667477][ T1593]  ? 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))
[   48.667478][ T1593]  ? 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))
[   48.667483][ T1593]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   48.667486][ T1593]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   48.667489][ T1593]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   48.667494][ T1593]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   48.667497][ T1593]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   48.667499][ T1593]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   48.667502][ T1593]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   48.667506][ T1593]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   48.667510][ T1593]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   48.667512][ T1593]  ? copy_msghdr_from_user (net/socket.c:2650)
[   48.667514][ T1593]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   48.667516][ T1593]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   48.667523][ T1593]  ___sys_sendmsg (net/socket.c:2767)
[   48.667526][ T1593]  ? copy_msghdr_from_user (net/socket.c:2619)
[   48.667542][ T1593]  __sys_sendmsg (net/socket.c:2799)
[   48.667545][ T1593]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   48.667552][ T1593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   48.667555][ T1593]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   48.667558][ T1593]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   48.667561][ T1593]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   48.667563][ T1593] RIP: 0033:0x7f81735b154e
[   48.667567][ T1593] 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
[   48.667569][ T1593] RSP: 002b:00007ffe9e193e40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   48.667571][ T1593] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f81735b154e
[   48.667573][ T1593] RDX: 0000000000000000 RSI: 00007ffe9e193ef0 RDI: 0000000000000005
[   48.667574][ T1593] RBP: 00007ffe9e193e50 R08: 0000000000000000 R09: 0000000000000000
[   48.667574][ T1593] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9128b5
[   48.667575][ T1593] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9e1945c0
| [   51.769894][ T1716] softirqs last disabled at (34828): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   51.769897][ T1716] Preemption disabled at:
| [   51.769897][ T1716] vprintk_emit (kernel/printk/printk.c:2471)
| [   51.769907][ T1716] Tainted: [W]=WARN
[   51.769908][ T1716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   51.769909][ T1716] Call Trace:
[   51.769911][ T1716]  <TASK>
[   51.769913][ T1716]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   51.769918][ T1716]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   51.769920][ T1716]  __might_resched.cold (kernel/sched/core.c:9234)
[   51.769929][ T1716]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   51.769932][ T1716]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   51.769937][ T1716]  __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))
[   51.769939][ T1716]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.769945][ T1716]  ? 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)
[   51.769948][ T1716]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   51.769952][ T1716]  put_chars (drivers/char/virtio_console.c:1176)
[   51.769954][ T1716]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   51.769957][ T1716]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   51.769960][ T1716]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.769964][ T1716]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.769967][ T1716]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.769971][ T1716]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   51.769974][ T1716]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   51.769976][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.769978][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.769982][ T1716]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   51.769985][ T1716]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   51.769987][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.769990][ T1716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.769994][ T1716]  console_emit_next_record (kernel/printk/printk.c:3183)
[   51.769998][ T1716]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   51.769999][ T1716]  ? 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))
[   51.770002][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770003][ T1716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.770008][ T1716]  console_flush_one_record (kernel/printk/printk.c:3268)
[   51.770012][ T1716]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   51.770013][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.770018][ T1716]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   51.770021][ T1716]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   51.770022][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770024][ T1716]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   51.770028][ T1716]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   51.770030][ T1716]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   51.770033][ T1716]  vprintk_emit (kernel/printk/printk.c:2479)
[   51.770036][ T1716]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   51.770037][ T1716]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   51.770039][ T1716]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   51.770042][ T1716]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.770043][ T1716]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   51.770045][ T1716]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   51.770047][ T1716]  ? ___sys_sendmsg (net/socket.c:2767)
[   51.770049][ T1716]  ? __sys_sendmsg (net/socket.c:2799)
[   51.770053][ T1716]  _printk (kernel/printk/printk.c:2504)
[   51.770057][ T1716]  ? snapshot_read.cold (user.c:?)
[   51.770061][ T1716]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   51.770065][ T1716]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   51.770068][ T1716]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   51.770071][ T1716]  ? netdev_notice (net/core/dev.c:13194)
[   51.770075][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770077][ T1716]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   51.770080][ T1716]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   51.770082][ T1716]  ? 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)
[   51.770085][ T1716]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   51.770090][ T1716]  dev_set_allmulti (net/core/dev_api.c:315)
[   51.770093][ T1716] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   51.770114][ T1716] br_del_if (net/bridge/br_if.c:732) bridge
[   51.770124][ T1716]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   51.770129][ T1716]  do_set_master (net/core/rtnetlink.c:3055)
[   51.770134][ T1716]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   51.770137][ T1716]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   51.770141][ T1716]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   51.770142][ T1716]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   51.770144][ T1716]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   51.770148][ T1716]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   51.770150][ T1716]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   51.770152][ T1716]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   51.770155][ T1716]  ? kasan_save_stack (mm/kasan/common.c:58)
[   51.770158][ T1716]  ? kasan_save_stack (mm/kasan/common.c:57)
[   51.770160][ T1716]  ? kasan_save_track (mm/kasan/common.c:78)
[   51.770163][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.770165][ T1716]  ? netlink_update_listeners (net/netlink/af_netlink.c:532)
[   51.770167][ T1716]  ? ___sys_sendmsg (net/socket.c:2744 net/socket.c:2763)
[   51.770171][ T1716]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.770173][ T1716]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.770175][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770177][ T1716]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   51.770179][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770181][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770182][ T1716]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   51.770185][ T1716]  ? __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)
[   51.770188][ T1716]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   51.770191][ T1716]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   51.770194][ T1716]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   51.770196][ T1716]  ? nla_get_range_signed (lib/nlattr.c:270)
[   51.770202][ T1716]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   51.770207][ T1716]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   51.770213][ T1716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.770215][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.770220][ T1716]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.770222][ T1716]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.770224][ T1716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.770226][ T1716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.770230][ T1716]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   51.770232][ T1716]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   51.770235][ T1716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.770236][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   51.770241][ T1716]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   51.770243][ T1716]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   51.770247][ T1716]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   51.770249][ T1716]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   51.770252][ T1716]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   51.770258][ T1716]  ? 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))
[   51.770259][ T1716]  ? 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))
[   51.770264][ T1716]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   51.770267][ T1716]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   51.770270][ T1716]  ? __lock_acquire (kernel/locking/lockdep.c:5251 (discriminator 3))
[   51.770275][ T1716]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   51.770278][ T1716]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   51.770280][ T1716]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   51.770283][ T1716]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   51.770287][ T1716]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   51.770291][ T1716]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   51.770293][ T1716]  ? copy_msghdr_from_user (net/socket.c:2650)
[   51.770296][ T1716]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   51.770297][ T1716]  ? move_addr_to_kernel (./include/linux/audit.h:354 (discriminator 1))
[   51.770305][ T1716]  ___sys_sendmsg (net/socket.c:2767)
[   51.770308][ T1716]  ? copy_msghdr_from_user (net/socket.c:2619)
[   51.770324][ T1716]  __sys_sendmsg (net/socket.c:2799)
[   51.770327][ T1716]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   51.770333][ T1716]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   51.770336][ T1716]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   51.770339][ T1716]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   51.770343][ T1716]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   51.770345][ T1716] RIP: 0033:0x7efc9321b54e
[   51.770348][ T1716] 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
[   51.770350][ T1716] RSP: 002b:00007fff1f40dd60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   51.770353][ T1716] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007efc9321b54e
[   51.770354][ T1716] RDX: 0000000000000000 RSI: 00007fff1f40de10 RDI: 0000000000000005
[   51.770355][ T1716] RBP: 00007fff1f40dd70 R08: 0000000000000000 R09: 0000000000000000
[   51.770356][ T1716] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9128b8
[   51.770357][ T1716] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff1f40e4e0
| [   53.169837][   T10] softirqs last disabled at (79684): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   53.169845][   T10] Preemption disabled at:
| [   53.169846][   T10] 0x0
| [   53.169857][   T10] Tainted: [W]=WARN
[   53.169858][   T10] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.169860][   T10] Workqueue: events netdev_work_proc
[   53.169864][   T10] Call Trace:
[   53.169865][   T10]  <TASK>
[   53.169867][   T10]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   53.169873][   T10]  __might_resched.cold (kernel/sched/core.c:9234)
[   53.169878][   T10]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   53.169881][   T10]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   53.169887][   T10]  __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))
[   53.169889][   T10]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   53.169895][   T10]  ? 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)
[   53.169899][   T10]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   53.169903][   T10]  put_chars (drivers/char/virtio_console.c:1176)
[   53.169906][   T10]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   53.169913][   T10]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   53.169921][   T10]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   53.169924][   T10]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.169929][   T10]  console_emit_next_record (kernel/printk/printk.c:3183)
[   53.169936][   T10]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   53.169937][   T10]  ? 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))
[   53.169940][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.169944][   T10]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.169949][   T10]  console_flush_one_record (kernel/printk/printk.c:3268)
[   53.169953][   T10]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   53.169954][   T10]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   53.169960][   T10]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   53.169963][   T10]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   53.169964][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.169966][   T10]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   53.169970][   T10]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   53.169972][   T10]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   53.169975][   T10]  vprintk_emit (kernel/printk/printk.c:2479)
[   53.169980][   T10]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   53.169982][   T10]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   53.169984][   T10]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   53.169986][   T10]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   53.169991][   T10]  _printk (kernel/printk/printk.c:2504)
[   53.169995][   T10]  ? snapshot_read.cold (user.c:?)
[   53.169998][   T10]  ? 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))
[   53.170006][   T10] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   53.170019][   T10] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   53.170028][   T10] br_device_event (net/bridge/br.c:111) bridge
[   53.170037][   T10]  ? 0xffffffffc0c00000
[   53.170044][   T10]  notifier_call_chain (kernel/notifier.c:85)
[   53.170050][   T10]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   53.170055][   T10]  ? netif_change_name (net/core/dev.c:1517)
[   53.170059][   T10]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   53.170061][   T10]  ? ref_tracker_alloc (lib/ref_tracker.c:283)
[   53.170066][   T10]  ? process_one_work (kernel/workqueue.c:3387)
[   53.170067][   T10]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   53.170068][   T10]  ? kthread (kernel/kthread.c:436)
[   53.170070][   T10]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   53.170073][   T10]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   53.170078][   T10]  netif_change_flags (net/core/dev.c:9882)
[   53.170082][   T10] vlan_dev_work (net/8021q/vlan_dev.c:1035) 8021q
[   53.170088][   T10]  netdev_work_proc (net/core/netdev_work.c:127 net/core/netdev_work.c:171)
[   53.170091][   T10]  ? netdev_work_sched (net/core/netdev_work.c:82)
[   53.170093][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.170095][   T10]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.170097][   T10]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.170101][   T10]  process_one_work (kernel/workqueue.c:3387)
[   53.170107][   T10]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   53.170110][   T10]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   53.170118][   T10]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   53.170122][   T10]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   53.170123][   T10]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   53.170126][   T10]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   53.170129][   T10]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   53.170130][   T10]  kthread (kernel/kthread.c:436)
[   53.170132][   T10]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   53.170136][   T10]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   53.170139][   T10]  ret_from_fork (arch/x86/kernel/process.c:158)
[   53.170142][   T10]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   53.170146][   T10]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   53.170149][   T10]  ? 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