======================================
| [   10.215779][  T187] softirqs last disabled at (53582): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.215781][  T187] Preemption disabled at:
| [   10.215782][  T187] 0x0
| [   10.215792][  T187] Tainted: [W]=WARN
[   10.215793][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.215795][  T187] Call Trace:
[   10.215797][  T187]  <TASK>
[   10.215798][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.215805][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.215810][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.215814][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.215819][  T187]  __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))
[   10.215822][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.215827][  T187]  ? 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)
[   10.215830][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.215833][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[   10.215836][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.215838][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.215843][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.215848][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.215855][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.215857][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.215860][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.215864][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.215868][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.215869][  T187]  ? 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))
[   10.215873][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.215875][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.215879][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.215884][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.215886][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.215891][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.215894][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.215896][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.215898][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.215902][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.215903][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.215907][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.215911][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.215914][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.215918][  T187]  _printk (kernel/printk/printk.c:2504)
[   10.215922][  T187]  ? snapshot_read.cold (user.c:?)
[   10.215925][  T187]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.215928][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.215932][  T187]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.215934][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.215938][  T187]  ? exit_notify (kernel/exit.c:780)
[   10.215940][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.215943][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.215947][  T187]  do_group_exit (kernel/exit.c:1151)
[   10.215950][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.215952][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.215954][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.215958][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.215961][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.215963][  T187] RIP: 0033:0x7fd768d141b8
[   10.215965][  T187] Code: Unable to access opcode bytes at 0x7fd768d1418e.

Code starting with the faulting instruction
===========================================
[   10.215967][  T187] RSP: 002b:00007ffe216aef18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.215969][  T187] RAX: ffffffffffffffda RBX: 00007fd768e44f88 RCX: 00007fd768d141b8
[   10.215970][  T187] RDX: 00007fd768a5efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.215971][  T187] RBP: 00007ffe216aef70 R08: 0000000000000000 R09: 0000000000008010
[   10.215972][  T187] R10: 00007ffe216aed30 R11: 0000000000000246 R12: 0000000000000001
[   10.215973][  T187] R13: 0000000000000000 R14: 00007fd768e43680 R15: 00007fd768e44fa0
| [   11.322533][  T238] softirqs last disabled at (27163): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.322535][  T238] Preemption disabled at:
| [   11.322536][  T238] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.322546][  T238] Tainted: [W]=WARN
[   11.322547][  T238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.322548][  T238] Call Trace:
[   11.322550][  T238]  <TASK>
[   11.322551][  T238]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.322557][  T238]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.322559][  T238]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.322563][  T238]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.322567][  T238]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.322573][  T238]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.322575][  T238]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.322583][  T238]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.322586][  T238]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.322589][  T238]  put_chars (drivers/char/virtio_console.c:1176)
[   11.322592][  T238]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.322594][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.322599][  T238]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.322601][  T238]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.322605][  T238]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.322608][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.322613][  T238]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.322616][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.322620][  T238]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.322624][  T238]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.322626][  T238]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.322629][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.322631][  T238]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.322635][  T238]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.322639][  T238]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.322641][  T238]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.322646][  T238]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.322649][  T238]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.322651][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.322653][  T238]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.322657][  T238]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.322658][  T238]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.322662][  T238]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.322666][  T238]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.322671][  T238]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   11.322676][  T238]  _printk (kernel/printk/printk.c:2504)
[   11.322679][  T238]  ? snapshot_read.cold (user.c:?)
[   11.322686][  T238]  ? 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)
[   11.322689][  T238] 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
[   11.322692][  T238]  do_one_initcall (init/main.c:1357)
[   11.322695][  T238]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   11.322699][  T238]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   11.322702][  T238]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   11.322707][  T238]  do_init_module (kernel/module/main.c:3117)
[   11.322710][  T238]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   11.322715][  T238]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   11.322718][  T238]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   11.322722][  T238]  load_module (kernel/module/main.c:3593)
[   11.322729][  T238]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   11.322733][  T238]  ? __ia32_sys_fsconfig (??:?)
[   11.322736][  T238]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   11.322740][  T238]  ? backing_file_read_iter (fs/backing-file.c:211)
[   11.322743][  T238]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.322747][  T238]  init_module_from_file (kernel/module/main.c:3790)
[   11.322750][  T238]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   11.322758][  T238]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.322761][  T238]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.322764][  T238]  idempotent_init_module (kernel/module/main.c:3802)
[   11.322768][  T238]  ? init_module_from_file (kernel/module/main.c:3791)
[   11.322774][  T238]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.322776][  T238]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   11.322782][  T238]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   11.322784][  T238]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   11.322787][  T238]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.322789][  T238]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.322792][  T238]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.322794][  T238] RIP: 0033:0x7f519ad5737d
[   11.322797][  T238] 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
[   11.322799][  T238] RSP: 002b:00007fff9820dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   11.322802][  T238] RAX: ffffffffffffffda RBX: 000056269a63d810 RCX: 00007f519ad5737d
[   11.322803][  T238] RDX: 0000000000000000 RSI: 00005626869f8ffd RDI: 0000000000000000
[   11.322804][  T238] RBP: 00007fff9820dd50 R08: 0000000000000000 R09: 0000000000000000
[   11.322805][  T238] R10: 0000000000000000 R11: 0000000000000246 R12: 00005626869f8ffd
[   11.322806][  T238] R13: 000056269a63d960 R14: 0000000000040000 R15: 0000000000000000
| [   12.577438][  T285] softirqs last disabled at (19224): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.577440][  T285] Preemption disabled at:
| [   12.577441][  T285] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.577450][  T285] Tainted: [W]=WARN
[   12.577451][  T285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.577452][  T285] Call Trace:
[   12.577454][  T285]  <TASK>
[   12.577455][  T285]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.577461][  T285]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.577463][  T285]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.577468][  T285]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.577472][  T285]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.577477][  T285]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.577479][  T285]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.577484][  T285]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.577487][  T285]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.577490][  T285]  put_chars (drivers/char/virtio_console.c:1176)
[   12.577493][  T285]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.577497][  T285]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.577500][  T285]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.577503][  T285]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.577505][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577507][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577510][  T285]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.577512][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.577515][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577519][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.577523][  T285]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.577527][  T285]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.577528][  T285]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.577532][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577534][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.577538][  T285]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.577542][  T285]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.577543][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577548][  T285]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.577551][  T285]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.577553][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577555][  T285]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.577558][  T285]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.577560][  T285]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.577563][  T285]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.577567][  T285]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.577569][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.577571][  T285]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.577575][  T285]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.577581][  T285]  _printk (kernel/printk/printk.c:2504)
[   12.577584][  T285]  ? snapshot_read.cold (user.c:?)
[   12.577588][  T285]  ? br_multicast_flood (??:?) bridge
[   12.577600][  T285]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.577602][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.577603][  T285]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.577607][  T285] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.577617][  T285] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.577625][  T285] new_nbp (net/bridge/br_if.c:449) bridge
[   12.577634][  T285] br_add_if (net/bridge/br_if.c:592) bridge
[   12.577640][  T285]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.577644][  T285]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.577647][  T285]  ? __kernel_text_address (kernel/extable.c:79)
[   12.577651][  T285]  do_set_master (net/core/rtnetlink.c:3071)
[   12.577656][  T285]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.577659][  T285]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.577662][  T285]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.577663][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.577666][  T285]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.577669][  T285]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.577672][  T285]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.577673][  T285]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.577676][  T285]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.577679][  T285]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.577680][  T285]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.577683][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577684][  T285]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.577688][  T285]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.577692][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.577694][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.577696][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577699][  T285]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.577700][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577702][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577704][  T285]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.577708][  T285]  ? __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)
[   12.577710][  T285]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.577712][  T285]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.577715][  T285]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.577716][  T285]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.577721][  T285]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.577726][  T285]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.577731][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.577733][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577737][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.577739][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.577741][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.577742][  T285]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.577746][  T285]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.577748][  T285]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.577751][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.577752][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577756][  T285]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.577758][  T285]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.577761][  T285]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.577763][  T285]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.577766][  T285]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.577771][  T285]  ? 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))
[   12.577773][  T285]  ? 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))
[   12.577777][  T285]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.577780][  T285]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.577783][  T285]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.577787][  T285]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.577790][  T285]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.577794][  T285]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.577800][  T285]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.577802][  T285]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.577804][  T285]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.577805][  T285]  ? move_addr_to_kernel (net/socket.c:258)
[   12.577812][  T285]  ___sys_sendmsg (net/socket.c:2767)
[   12.577815][  T285]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.577830][  T285]  __sys_sendmsg (net/socket.c:2799)
[   12.577833][  T285]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.577838][  T285]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.577842][  T285]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.577844][  T285]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.577847][  T285]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.577849][  T285] RIP: 0033:0x7f2d1bb2f54e
[   12.577852][  T285] 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
[   12.577854][  T285] RSP: 002b:00007fff4b8e9c70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.577857][  T285] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2d1bb2f54e
[   12.577858][  T285] RDX: 0000000000000000 RSI: 00007fff4b8e9d20 RDI: 0000000000000005
[   12.577859][  T285] RBP: 00007fff4b8e9c80 R08: 0000000000000000 R09: 0000000000000000
[   12.577860][  T285] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918dbe
[   12.577860][  T285] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff4b8ea3e0
| [   14.386923][  T342] softirqs last disabled at (12540): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.386926][  T342] Preemption disabled at:
| [   14.386926][  T342] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.386936][  T342] Tainted: [W]=WARN
[   14.386937][  T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.386939][  T342] Call Trace:
[   14.386940][  T342]  <TASK>
[   14.386942][  T342]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.386948][  T342]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.386950][  T342]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.386955][  T342]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.386959][  T342]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.386965][  T342]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   14.386967][  T342]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.386973][  T342]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   14.386976][  T342]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.386979][  T342]  put_chars (drivers/char/virtio_console.c:1176)
[   14.386981][  T342]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   14.386983][  T342]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.386986][  T342]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.386990][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.386993][  T342]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.386996][  T342]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.386999][  T342]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   14.387001][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387003][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387007][  T342]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.387009][  T342]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   14.387012][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387015][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.387019][  T342]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.387022][  T342]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.387024][  T342]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   14.387027][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387030][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.387034][  T342]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.387038][  T342]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.387040][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387045][  T342]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.387048][  T342]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.387050][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387052][  T342]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   14.387056][  T342]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.387058][  T342]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.387061][  T342]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.387065][  T342]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.387068][  T342]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.387071][  T342]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.387074][  T342]  _printk (kernel/printk/printk.c:2504)
[   14.387078][  T342]  ? snapshot_read.cold (user.c:?)
[   14.387082][  T342]  ? br_multicast_flood (??:?) bridge
[   14.387095][  T342]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.387096][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.387097][  T342]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.387102][  T342] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   14.387112][  T342] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   14.387121][  T342] new_nbp (net/bridge/br_if.c:449) bridge
[   14.387130][  T342] br_add_if (net/bridge/br_if.c:592) bridge
[   14.387137][  T342]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   14.387141][  T342]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.387144][  T342]  ? __kernel_text_address (kernel/extable.c:79)
[   14.387148][  T342]  do_set_master (net/core/rtnetlink.c:3071)
[   14.387152][  T342]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.387156][  T342]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.387159][  T342]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.387160][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.387162][  T342]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.387165][  T342]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.387168][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.387170][  T342]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.387172][  T342]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.387175][  T342]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.387177][  T342]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.387180][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387182][  T342]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   14.387185][  T342]  ? ___sys_sendmsg (net/socket.c:2757)
[   14.387190][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.387192][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.387194][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387197][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.387198][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387200][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387202][  T342]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.387206][  T342]  ? __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)
[   14.387210][  T342]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.387212][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.387215][  T342]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.387217][  T342]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.387222][  T342]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.387227][  T342]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.387232][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.387234][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387238][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.387240][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.387242][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.387249][  T342]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.387253][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.387255][  T342]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.387258][  T342]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.387259][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387263][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.387265][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.387269][  T342]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.387270][  T342]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.387273][  T342]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.387279][  T342]  ? 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))
[   14.387281][  T342]  ? 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))
[   14.387285][  T342]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.387289][  T342]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.387291][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.387295][  T342]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.387299][  T342]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.387303][  T342]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   14.387308][  T342]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   14.387311][  T342]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.387313][  T342]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   14.387315][  T342]  ? move_addr_to_kernel (net/socket.c:258)
[   14.387322][  T342]  ___sys_sendmsg (net/socket.c:2767)
[   14.387325][  T342]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.387340][  T342]  __sys_sendmsg (net/socket.c:2799)
[   14.387343][  T342]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.387349][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.387353][  T342]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.387355][  T342]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.387358][  T342]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.387361][  T342] RIP: 0033:0x7fe7fb5c054e
[   14.387364][  T342] 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
[   14.387366][  T342] RSP: 002b:00007ffe8da6aae0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.387369][  T342] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe7fb5c054e
[   14.387371][  T342] RDX: 0000000000000000 RSI: 00007ffe8da6ab90 RDI: 0000000000000005
[   14.387372][  T342] RBP: 00007ffe8da6aaf0 R08: 0000000000000000 R09: 0000000000000000
[   14.387373][  T342] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918dbf
[   14.387373][  T342] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe8da6b250
| [   15.943943][  T395] softirqs last disabled at (20576): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   15.943946][  T395] Preemption disabled at:
| [   15.943947][  T395] vprintk_emit (kernel/printk/printk.c:2471)
| [   15.943959][  T395] Tainted: [W]=WARN
[   15.943960][  T395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.943963][  T395] Call Trace:
[   15.943965][  T395]  <TASK>
[   15.943967][  T395]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.943974][  T395]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   15.943977][  T395]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.943983][  T395]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.943988][  T395]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.943996][  T395]  __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))
[   15.943999][  T395]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.944007][  T395]  ? 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)
[   15.944011][  T395]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.944016][  T395]  put_chars (drivers/char/virtio_console.c:1176)
[   15.944018][  T395]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   15.944022][  T395]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.944027][  T395]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.944032][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.944036][  T395]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.944041][  T395]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.944046][  T395]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.944049][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944051][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944058][  T395]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.944061][  T395]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   15.944066][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944070][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.944077][  T395]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.944083][  T395]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.944085][  T395]  ? 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))
[   15.944090][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944094][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.944100][  T395]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.944107][  T395]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.944110][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944119][  T395]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.944123][  T395]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.944126][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944129][  T395]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.944135][  T395]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.944138][  T395]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.944143][  T395]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.944150][  T395]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.944154][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.944158][  T395]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.944164][  T395]  _printk (kernel/printk/printk.c:2504)
[   15.944169][  T395]  ? snapshot_read.cold (user.c:?)
[   15.944176][  T395]  ? br_multicast_flood (??:?) bridge
[   15.944193][  T395]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.944196][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.944198][  T395]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.944206][  T395] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.944223][  T395] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   15.944237][  T395] new_nbp (net/bridge/br_if.c:449) bridge
[   15.944260][  T395] br_add_if (net/bridge/br_if.c:592) bridge
[   15.944272][  T395]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   15.944278][  T395]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   15.944282][  T395]  ? __kernel_text_address (kernel/extable.c:79)
[   15.944289][  T395]  do_set_master (net/core/rtnetlink.c:3071)
[   15.944296][  T395]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   15.944301][  T395]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.944306][  T395]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.944308][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.944311][  T395]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.944315][  T395]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.944319][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.944322][  T395]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.944326][  T395]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.944330][  T395]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.944332][  T395]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.944337][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944340][  T395]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   15.944344][  T395]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.944351][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.944354][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.944359][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944362][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.944364][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944367][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944370][  T395]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.944376][  T395]  ? __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)
[   15.944380][  T395]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.944383][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.944389][  T395]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.944392][  T395]  ? nla_get_range_signed (lib/nlattr.c:270)
[   15.944400][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.944410][  T395]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.944420][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.944423][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944430][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.944433][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.944436][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.944440][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.944446][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.944449][  T395]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.944455][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.944457][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944465][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.944467][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.944473][  T395]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.944476][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.944481][  T395]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.944492][  T395]  ? 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))
[   15.944494][  T395]  ? 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))
[   15.944502][  T395]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.944509][  T395]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.944513][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.944520][  T395]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.944526][  T395]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.944533][  T395]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.944541][  T395]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.944545][  T395]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.944548][  T395]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.944551][  T395]  ? move_addr_to_kernel (net/socket.c:258)
[   15.944564][  T395]  ___sys_sendmsg (net/socket.c:2767)
[   15.944568][  T395]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.944600][  T395]  __sys_sendmsg (net/socket.c:2799)
[   15.944605][  T395]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.944616][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.944622][  T395]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.944625][  T395]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.944630][  T395]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.944633][  T395] RIP: 0033:0x7f64c91d954e
[   15.944638][  T395] 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
[   15.944640][  T395] RSP: 002b:00007ffd53db6150 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.944644][  T395] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f64c91d954e
[   15.944647][  T395] RDX: 0000000000000000 RSI: 00007ffd53db6200 RDI: 0000000000000005
[   15.944648][  T395] RBP: 00007ffd53db6160 R08: 0000000000000000 R09: 0000000000000000
[   15.944649][  T395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918dc1
[   15.944651][  T395] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd53db68c0
| [   17.178587][  T440] softirqs last disabled at (20822): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   17.178589][  T440] Preemption disabled at:
| [   17.178590][  T440] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.178600][  T440] Tainted: [W]=WARN
[   17.178601][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.178602][  T440] Call Trace:
[   17.178604][  T440]  <TASK>
[   17.178606][  T440]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.178611][  T440]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.178613][  T440]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.178618][  T440]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.178622][  T440]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.178628][  T440]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   17.178630][  T440]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.178635][  T440]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.178638][  T440]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.178641][  T440]  put_chars (drivers/char/virtio_console.c:1176)
[   17.178643][  T440]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   17.178646][  T440]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.178649][  T440]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.178653][  T440]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.178655][  T440]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.178659][  T440]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.178662][  T440]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.178664][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178665][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178669][  T440]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.178671][  T440]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   17.178674][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178677][  T440]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.178681][  T440]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.178684][  T440]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.178686][  T440]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   17.178689][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178691][  T440]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.178695][  T440]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.178699][  T440]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.178701][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178706][  T440]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.178709][  T440]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.178710][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178713][  T440]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.178716][  T440]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.178718][  T440]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.178721][  T440]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.178726][  T440]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.178728][  T440]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.178733][  T440]  _printk (kernel/printk/printk.c:2504)
[   17.178737][  T440]  ? snapshot_read.cold (user.c:?)
[   17.178740][  T440]  ? br_multicast_flood (??:?) bridge
[   17.178754][  T440]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.178755][  T440]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.178756][  T440]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.178760][  T440] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.178771][  T440] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   17.178779][  T440] new_nbp (net/bridge/br_if.c:449) bridge
[   17.178789][  T440] br_add_if (net/bridge/br_if.c:592) bridge
[   17.178796][  T440]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   17.178800][  T440]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   17.178803][  T440]  ? __kernel_text_address (kernel/extable.c:79)
[   17.178807][  T440]  do_set_master (net/core/rtnetlink.c:3071)
[   17.178812][  T440]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.178815][  T440]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.178818][  T440]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.178819][  T440]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.178821][  T440]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.178824][  T440]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.178827][  T440]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.178829][  T440]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.178831][  T440]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.178834][  T440]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.178836][  T440]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.178839][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178840][  T440]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   17.178843][  T440]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.178848][  T440]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.178850][  T440]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.178852][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178854][  T440]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.178856][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178858][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178860][  T440]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.178864][  T440]  ? __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)
[   17.178867][  T440]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.178869][  T440]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.178873][  T440]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.178874][  T440]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.178879][  T440]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.178884][  T440]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.178889][  T440]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.178891][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178895][  T440]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.178897][  T440]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.178899][  T440]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.178901][  T440]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.178905][  T440]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.178907][  T440]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.178910][  T440]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.178911][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178915][  T440]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.178917][  T440]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.178920][  T440]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.178922][  T440]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.178925][  T440]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.178931][  T440]  ? 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))
[   17.178933][  T440]  ? 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))
[   17.178937][  T440]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.178940][  T440]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.178943][  T440]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178947][  T440]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.178951][  T440]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.178954][  T440]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.178959][  T440]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.178962][  T440]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.178964][  T440]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.178965][  T440]  ? move_addr_to_kernel (net/socket.c:258)
[   17.178973][  T440]  ___sys_sendmsg (net/socket.c:2767)
[   17.178975][  T440]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.178990][  T440]  __sys_sendmsg (net/socket.c:2799)
[   17.178993][  T440]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.178999][  T440]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.179003][  T440]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.179005][  T440]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.179008][  T440]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.179011][  T440] RIP: 0033:0x7f8e1401554e
[   17.179014][  T440] 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
[   17.179016][  T440] RSP: 002b:00007fff714696d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.179019][  T440] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f8e1401554e
[   17.179020][  T440] RDX: 0000000000000000 RSI: 00007fff71469780 RDI: 0000000000000005
[   17.179021][  T440] RBP: 00007fff714696e0 R08: 0000000000000000 R09: 0000000000000000
[   17.179022][  T440] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918dc2
[   17.179023][  T440] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff71469e40
| [   25.670950][   T68] softirqs last disabled at (34097): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [   25.670952][   T68] Preemption disabled at:
| [   25.670953][   T68] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.670962][   T68] Tainted: [W]=WARN
[   25.670963][   T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.670965][   T68] Workqueue: netns cleanup_net
[   25.670968][   T68] Call Trace:
[   25.670970][   T68]  <TASK>
[   25.670972][   T68]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.670978][   T68]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.670980][   T68]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.670985][   T68]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.670989][   T68]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.670994][   T68]  __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))
[   25.670997][   T68]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.671003][   T68]  ? 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)
[   25.671005][   T68]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.671008][   T68]  put_chars (drivers/char/virtio_console.c:1176)
[   25.671011][   T68]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.671015][   T68]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   25.671020][   T68]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.671022][   T68]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.671024][   T68]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.671029][   T68]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.671030][   T68]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   25.671033][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.671037][   T68]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.671041][   T68]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.671045][   T68]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.671047][   T68]  ? 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))
[   25.671052][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.671056][   T68]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.671060][   T68]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.671064][   T68]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.671066][   T68]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.671071][   T68]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.671074][   T68]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.671076][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.671078][   T68]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   25.671082][   T68]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.671084][   T68]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.671087][   T68]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.671091][   T68]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.671093][   T68]  ? process_one_work (kernel/workqueue.c:3387)
[   25.671095][   T68]  ? kthread (kernel/kthread.c:436)
[   25.671097][   T68]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   25.671100][   T68]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   25.671104][   T68]  _printk (kernel/printk/printk.c:2504)
[   25.671108][   T68]  ? snapshot_read.cold (user.c:?)
[   25.671112][   T68]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   25.671116][   T68]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   25.671120][   T68]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   25.671122][   T68]  ? netdev_notice (net/core/dev.c:13194)
[   25.671126][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.671129][   T68]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   25.671132][   T68]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   25.671133][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.671135][   T68]  ? 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)
[   25.671139][   T68]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   25.671144][   T68]  dev_set_allmulti (net/core/dev_api.c:315)
[   25.671147][   T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   25.671164][   T68] br_dev_delete (net/bridge/br_if.c:387) bridge
[   25.671173][   T68] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   25.671182][   T68]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   25.671186][   T68]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.671190][   T68]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   25.671192][   T68]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.671195][   T68]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   25.671200][   T68]  cleanup_net (net/core/net_namespace.c:706)
[   25.671203][   T68]  ? net_passive_dec (./include/linux/llist.h:241)
[   25.671207][   T68]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.671209][   T68]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.671213][   T68]  process_one_work (kernel/workqueue.c:3387)
[   25.671220][   T68]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   25.671223][   T68]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.671231][   T68]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   25.671235][   T68]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.671237][   T68]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   25.671240][   T68]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.671243][   T68]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   25.671245][   T68]  kthread (kernel/kthread.c:436)
[   25.671246][   T68]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.671249][   T68]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.671252][   T68]  ret_from_fork (arch/x86/kernel/process.c:158)
[   25.671255][   T68]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   25.671258][   T68]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   25.671261][   T68]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   25.671264][   T68]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   26.741608][  T567] softirqs last disabled at (20890): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   26.741616][  T567] Preemption disabled at:
| [   26.741617][  T567] 0x0
| [   26.741627][  T567] Tainted: [W]=WARN
[   26.741628][  T567] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.741630][  T567] Call Trace:
[   26.741632][  T567]  <TASK>
[   26.741633][  T567]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.741640][  T567]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.741644][  T567]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.741649][  T567]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.741654][  T567]  __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))
[   26.741657][  T567]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.741662][  T567]  ? 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)
[   26.741665][  T567]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.741668][  T567]  put_chars (drivers/char/virtio_console.c:1176)
[   26.741671][  T567]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.741674][  T567]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.741678][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.741681][  T567]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.741685][  T567]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.741688][  T567]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   26.741689][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741691][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741695][  T567]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.741697][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.741701][  T567]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.741705][  T567]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.741709][  T567]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.741711][  T567]  ? 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))
[   26.741714][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.741716][  T567]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.741720][  T567]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.741724][  T567]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.741726][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741732][  T567]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.741734][  T567]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.741736][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.741739][  T567]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.741742][  T567]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.741744][  T567]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.741747][  T567]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.741752][  T567]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.741754][  T567]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.741756][  T567]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.741759][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.741762][  T567]  _printk (kernel/printk/printk.c:2504)
[   26.741766][  T567]  ? snapshot_read.cold (user.c:?)
[   26.741774][  T567] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   26.741785][  T567] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   26.741795][  T567] br_device_event (net/bridge/br.c:111) bridge
[   26.741802][  T567]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.741806][  T567]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   26.741813][  T567]  notifier_call_chain (kernel/notifier.c:85)
[   26.741819][  T567]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   26.741824][  T567]  ? netif_change_name (net/core/dev.c:1517)
[   26.741828][  T567]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   26.741831][  T567]  ? __kernel_text_address (kernel/extable.c:79)
[   26.741833][  T567]  ? write_profile (profile.c:?)
[   26.741836][  T567]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   26.741840][  T567]  netif_change_flags (net/core/dev.c:9882)
[   26.741844][  T567]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   26.741848][  T567]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.741850][  T567]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.741852][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.741853][  T567]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.741857][  T567]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.741860][  T567]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.741862][  T567]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.741864][  T567]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.741867][  T567]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.741869][  T567]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.741872][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741873][  T567]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   26.741877][  T567]  ? ___sys_sendmsg (net/socket.c:2757)
[   26.741881][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.741883][  T567]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.741886][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.741888][  T567]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.741890][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.741892][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.741894][  T567]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.741898][  T567]  ? __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)
[   26.741900][  T567]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.741902][  T567]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.741905][  T567]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.741910][  T567]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.741916][  T567]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.741921][  T567]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.741923][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741927][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.741929][  T567]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.741931][  T567]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.741933][  T567]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.741937][  T567]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.741939][  T567]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.741942][  T567]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.741943][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741948][  T567]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.741950][  T567]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.741953][  T567]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.741955][  T567]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.741958][  T567]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.741964][  T567]  ? 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))
[   26.741965][  T567]  ? 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))
[   26.741970][  T567]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.741973][  T567]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.741976][  T567]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.741980][  T567]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.741984][  T567]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.741988][  T567]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   26.741994][  T567]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   26.741996][  T567]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.741998][  T567]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   26.742000][  T567]  ? move_addr_to_kernel (net/socket.c:258)
[   26.742007][  T567]  ___sys_sendmsg (net/socket.c:2767)
[   26.742010][  T567]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.742026][  T567]  __sys_sendmsg (net/socket.c:2799)
[   26.742030][  T567]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.742036][  T567]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.742040][  T567]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.742042][  T567]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.742045][  T567]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.742047][  T567] RIP: 0033:0x7f0a9d9b954e
[   26.742050][  T567] 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
[   26.742052][  T567] RSP: 002b:00007fff58648240 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.742054][  T567] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0a9d9b954e
[   26.742056][  T567] RDX: 0000000000000000 RSI: 00007fff586482f0 RDI: 0000000000000005
[   26.742057][  T567] RBP: 00007fff58648250 R08: 0000000000000000 R09: 0000000000000000
[   26.742057][  T567] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918dcc


Finger prints:
do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars