======================================
| [    9.045979][  T131] softirqs last disabled at (18935): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.045981][  T131] Preemption disabled at:
| [    9.045982][  T131] 0x0
| [    9.045993][  T131] Tainted: [W]=WARN
[    9.045994][  T131] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.045996][  T131] Call Trace:
[    9.045998][  T131]  <TASK>
[    9.045999][  T131]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.046005][  T131]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.046010][  T131]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.046014][  T131]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.046019][  T131]  __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))
[    9.046022][  T131]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.046027][  T131]  ? 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)
[    9.046030][  T131]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.046034][  T131]  put_chars (drivers/char/virtio_console.c:1176)
[    9.046036][  T131]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.046038][  T131]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.046043][  T131]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.046048][  T131]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.046054][  T131]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.046056][  T131]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.046058][  T131]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.046062][  T131]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.046066][  T131]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.046068][  T131]  ? 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))
[    9.046071][  T131]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.046074][  T131]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.046077][  T131]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.046082][  T131]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.046083][  T131]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.046089][  T131]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.046091][  T131]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.046093][  T131]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.046095][  T131]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.046099][  T131]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.046101][  T131]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.046104][  T131]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.046108][  T131]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.046111][  T131]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.046115][  T131]  _printk (kernel/printk/printk.c:2504)
[    9.046119][  T131]  ? snapshot_read.cold (user.c:?)
[    9.046122][  T131]  ? 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)
[    9.046124][  T131]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.046128][  T131]  ? 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)
[    9.046130][  T131]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.046134][  T131]  ? exit_notify (kernel/exit.c:780)
[    9.046136][  T131]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.046140][  T131]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.046145][  T131]  do_group_exit (kernel/exit.c:1151)
[    9.046147][  T131]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.046149][  T131]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.046151][  T131]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.046154][  T131]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.046157][  T131]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.046160][  T131] RIP: 0033:0x7f415bc7d1b8
[    9.046162][  T131] Code: Unable to access opcode bytes at 0x7f415bc7d18e.

Code starting with the faulting instruction
===========================================
[    9.046164][  T131] RSP: 002b:00007fffefe82ad8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.046166][  T131] RAX: ffffffffffffffda RBX: 00007f415bdadf88 RCX: 00007f415bc7d1b8
[    9.046167][  T131] RDX: 00007f415badab48 RSI: fffffffffffffec8 RDI: 0000000000000000
[    9.046168][  T131] RBP: 00007fffefe82b30 R08: 00000000ffffffff R09: 0000000000001010
[    9.046169][  T131] R10: 00007fffefe82950 R11: 0000000000000246 R12: 0000000000000002
[    9.046170][  T131] R13: 0000000000000000 R14: 00007f415bdac680 R15: 00007f415bdadfa0
| [   10.738802][  T223] softirqs last disabled at (29019): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.738804][  T223] Preemption disabled at:
| [   10.738805][  T223] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.738815][  T223] Tainted: [W]=WARN
[   10.738816][  T223] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.738818][  T223] Call Trace:
[   10.738819][  T223]  <TASK>
[   10.738820][  T223]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.738826][  T223]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.738828][  T223]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.738832][  T223]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.738836][  T223]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.738841][  T223]  __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))
[   10.738843][  T223]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.738849][  T223]  ? 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)
[   10.738852][  T223]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.738855][  T223]  put_chars (drivers/char/virtio_console.c:1176)
[   10.738858][  T223]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.738859][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.738864][  T223]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.738866][  T223]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.738871][  T223]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.738873][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.738878][  T223]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.738881][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.738886][  T223]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.738889][  T223]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.738891][  T223]  ? 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))
[   10.738894][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.738897][  T223]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.738900][  T223]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.738904][  T223]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.738906][  T223]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.738911][  T223]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.738914][  T223]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.738916][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.738918][  T223]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.738921][  T223]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.738923][  T223]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.738926][  T223]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.738931][  T223]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.738936][  T223]  ? vlan_netlink_fini (./include/linux/etherdevice.h:306 net/8021q/vlan.c:316 net/8021q/vlan.c:416) 8021q
[   10.738940][  T223]  _printk (kernel/printk/printk.c:2504)
[   10.738944][  T223]  ? snapshot_read.cold (user.c:?)
[   10.738950][  T223]  ? 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)
[   10.738952][  T223] 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
[   10.738955][  T223]  do_one_initcall (init/main.c:1357)
[   10.738958][  T223]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   10.738962][  T223]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   10.738965][  T223]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   10.738970][  T223]  do_init_module (kernel/module/main.c:3117)
[   10.738974][  T223]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   10.738978][  T223]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   10.738981][  T223]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   10.738985][  T223]  load_module (kernel/module/main.c:3593)
[   10.738992][  T223]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   10.738996][  T223]  ? __ia32_sys_fsconfig (??:?)
[   10.738999][  T223]  ? ovl_real_file (fs/overlayfs/file.c:195)
[   10.739003][  T223]  ? backing_file_read_iter (fs/backing-file.c:211)
[   10.739006][  T223]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.739010][  T223]  init_module_from_file (kernel/module/main.c:3790)
[   10.739013][  T223]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   10.739020][  T223]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.739024][  T223]  ? 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)
[   10.739027][  T223]  idempotent_init_module (kernel/module/main.c:3802)
[   10.739030][  T223]  ? init_module_from_file (kernel/module/main.c:3791)
[   10.739036][  T223]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.739039][  T223]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.739044][  T223]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   10.739046][  T223]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.739050][  T223]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.739052][  T223]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.739054][  T223]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.739057][  T223] RIP: 0033:0x7fdf5749237d
[   10.739060][  T223] 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
[   10.739062][  T223] RSP: 002b:00007fffc3c329f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   10.739065][  T223] RAX: ffffffffffffffda RBX: 000055aef5d85810 RCX: 00007fdf5749237d
[   10.739066][  T223] RDX: 0000000000000000 RSI: 000055aeba53cffd RDI: 0000000000000000
[   10.739067][  T223] RBP: 00007fffc3c32a90 R08: 0000000000000000 R09: 0000000000000000
[   10.739068][  T223] R10: 0000000000000000 R11: 0000000000000246 R12: 000055aeba53cffd
[   10.739069][  T223] R13: 000055aef5d85960 R14: 0000000000040000 R15: 0000000000000000
| [   12.037191][  T267] softirqs last disabled at (13338): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.037193][  T267] Preemption disabled at:
| [   12.037194][  T267] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.037204][  T267] Tainted: [W]=WARN
[   12.037205][  T267] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.037207][  T267] Call Trace:
[   12.037208][  T267]  <TASK>
[   12.037210][  T267]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.037216][  T267]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.037218][  T267]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.037223][  T267]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.037227][  T267]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.037233][  T267]  __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))
[   12.037235][  T267]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.037241][  T267]  ? 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)
[   12.037243][  T267]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.037247][  T267]  put_chars (drivers/char/virtio_console.c:1176)
[   12.037250][  T267]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.037254][  T267]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.037258][  T267]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.037261][  T267]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.037263][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037265][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037269][  T267]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.037272][  T267]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.037275][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037279][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.037283][  T267]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.037287][  T267]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.037289][  T267]  ? 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))
[   12.037292][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037295][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.037299][  T267]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.037303][  T267]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.037305][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037311][  T267]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.037314][  T267]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.037316][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037318][  T267]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.037322][  T267]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.037324][  T267]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.037328][  T267]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.037332][  T267]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.037334][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.037336][  T267]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.037343][  T267]  _printk (kernel/printk/printk.c:2504)
[   12.037346][  T267]  ? snapshot_read.cold (user.c:?)
[   12.037350][  T267]  ? br_multicast_flood (??:?) bridge
[   12.037363][  T267]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.037365][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.037366][  T267]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.037371][  T267] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.037381][  T267] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.037390][  T267] new_nbp (net/bridge/br_if.c:449) bridge
[   12.037399][  T267] br_add_if (net/bridge/br_if.c:592) bridge
[   12.037407][  T267]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.037411][  T267]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.037414][  T267]  ? __kernel_text_address (kernel/extable.c:79)
[   12.037418][  T267]  do_set_master (net/core/rtnetlink.c:3071)
[   12.037423][  T267]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.037426][  T267]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.037429][  T267]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.037431][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.037433][  T267]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.037437][  T267]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.037440][  T267]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.037442][  T267]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.037444][  T267]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.037447][  T267]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.037449][  T267]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.037452][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037454][  T267]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   12.037457][  T267]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.037462][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.037464][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.037467][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037469][  T267]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.037471][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037473][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037475][  T267]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.037479][  T267]  ? __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)
[   12.037481][  T267]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.037483][  T267]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.037487][  T267]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.037488][  T267]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.037493][  T267]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.037499][  T267]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.037504][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.037506][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037511][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.037513][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.037515][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.037517][  T267]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.037521][  T267]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.037523][  T267]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.037527][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.037528][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037533][  T267]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.037535][  T267]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.037538][  T267]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.037540][  T267]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.037543][  T267]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.037550][  T267]  ? 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))
[   12.037551][  T267]  ? 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))
[   12.037556][  T267]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.037560][  T267]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.037562][  T267]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.037567][  T267]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.037571][  T267]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.037575][  T267]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.037580][  T267]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.037582][  T267]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.037587][  T267]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.037589][  T267]  ? move_addr_to_kernel (net/socket.c:258)
[   12.037597][  T267]  ___sys_sendmsg (net/socket.c:2767)
[   12.037600][  T267]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.037616][  T267]  __sys_sendmsg (net/socket.c:2799)
[   12.037619][  T267]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.037626][  T267]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.037630][  T267]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.037632][  T267]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.037635][  T267]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.037637][  T267] RIP: 0033:0x7fa451ac054e
[   12.037642][  T267] 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
[   12.037644][  T267] RSP: 002b:00007fffe54e4020 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.037647][  T267] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa451ac054e
[   12.037648][  T267] RDX: 0000000000000000 RSI: 00007fffe54e40d0 RDI: 0000000000000005
[   12.037649][  T267] RBP: 00007fffe54e4030 R08: 0000000000000000 R09: 0000000000000000
[   12.037650][  T267] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac59
[   12.037651][  T267] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffe54e4790
| [   22.329583][  T351] softirqs last disabled at (23386): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.329587][  T351] Preemption disabled at:
| [   22.329588][  T351] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.329599][  T351] Tainted: [W]=WARN
[   22.329600][  T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.329601][  T351] Call Trace:
[   22.329603][  T351]  <TASK>
[   22.329605][  T351]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.329611][  T351]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.329613][  T351]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.329618][  T351]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.329622][  T351]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.329628][  T351]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.329630][  T351]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.329636][  T351]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.329639][  T351]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.329642][  T351]  put_chars (drivers/char/virtio_console.c:1176)
[   22.329645][  T351]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.329646][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.329651][  T351]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.329656][  T351]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.329663][  T351]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.329665][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329667][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.329671][  T351]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.329675][  T351]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.329677][  T351]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.329680][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329683][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.329687][  T351]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.329691][  T351]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.329693][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.329698][  T351]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.329701][  T351]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.329703][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329705][  T351]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.329709][  T351]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.329711][  T351]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.329714][  T351]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.329718][  T351]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.329720][  T351]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.329722][  T351]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.329724][  T351]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.329726][  T351]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.329729][  T351]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.329730][  T351]  ? __sys_sendmsg (net/socket.c:2799)
[   22.329732][  T351]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.329737][  T351]  _printk (kernel/printk/printk.c:2504)
[   22.329741][  T351]  ? snapshot_read.cold (user.c:?)
[   22.329745][  T351]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.329749][  T351]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.329752][  T351]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.329755][  T351]  ? netdev_notice (net/core/dev.c:13194)
[   22.329759][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329761][  T351]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.329764][  T351]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.329765][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.329768][  T351]  ? 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)
[   22.329771][  T351]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.329776][  T351]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.329780][  T351] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   22.329794][  T351]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.329800][  T351] br_del_if (net/bridge/br_if.c:732) bridge
[   22.329808][  T351]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.329811][  T351]  do_set_master (net/core/rtnetlink.c:3055)
[   22.329821][  T351]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.329824][  T351]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.329827][  T351]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.329829][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.329832][  T351]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.329835][  T351]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.329838][  T351]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.329840][  T351]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.329842][  T351]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.329846][  T351]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.329847][  T351]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.329850][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.329852][  T351]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   22.329854][  T351]  ? ___sys_sendmsg (net/socket.c:2757)
[   22.329857][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.329859][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.329862][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329864][  T351]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.329866][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329868][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.329870][  T351]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.329873][  T351]  ? __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)
[   22.329876][  T351]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.329878][  T351]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.329881][  T351]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.329883][  T351]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.329888][  T351]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.329893][  T351]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.329899][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.329900][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.329905][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.329907][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.329909][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.329911][  T351]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.329914][  T351]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.329917][  T351]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.329920][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.329921][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.329925][  T351]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.329927][  T351]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.329931][  T351]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.329932][  T351]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.329935][  T351]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.329941][  T351]  ? 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))
[   22.329943][  T351]  ? 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))
[   22.329947][  T351]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.329951][  T351]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.329953][  T351]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.329958][  T351]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.329961][  T351]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.329965][  T351]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   22.329970][  T351]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   22.329973][  T351]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.329975][  T351]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   22.329977][  T351]  ? move_addr_to_kernel (net/socket.c:258)
[   22.329984][  T351]  ___sys_sendmsg (net/socket.c:2767)
[   22.329987][  T351]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.330002][  T351]  __sys_sendmsg (net/socket.c:2799)
[   22.330005][  T351]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.330011][  T351]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.330015][  T351]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.330016][  T351]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.330019][  T351]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.330021][  T351] RIP: 0033:0x7f40217de54e
[   22.330025][  T351] 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
[   22.330027][  T351] RSP: 002b:00007ffee90591d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.330030][  T351] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f40217de54e
[   22.330031][  T351] RDX: 0000000000000000 RSI: 00007ffee9059280 RDI: 0000000000000005
[   22.330032][  T351] RBP: 00007ffee90591e0 R08: 0000000000000000 R09: 0000000000000000
[   22.330033][  T351] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac63
[   22.330034][  T351] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee9059940
| [   24.465424][  T354] softirqs last disabled at (12792): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.465426][  T354] Preemption disabled at:
| [   24.465427][  T354] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.465437][  T354] Tainted: [W]=WARN
[   24.465438][  T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.465439][  T354] Call Trace:
[   24.465441][  T354]  <TASK>
[   24.465443][  T354]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.465448][  T354]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.465451][  T354]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.465455][  T354]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.465459][  T354]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.465465][  T354]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.465467][  T354]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.465472][  T354]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.465475][  T354]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.465478][  T354]  put_chars (drivers/char/virtio_console.c:1176)
[   24.465480][  T354]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   24.465482][  T354]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.465485][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.465490][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.465492][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.465496][  T354]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.465499][  T354]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.465501][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465502][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465506][  T354]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.465509][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   24.465512][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465514][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.465518][  T354]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.465522][  T354]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.465524][  T354]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.465527][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465530][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.465534][  T354]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.465538][  T354]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.465540][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465545][  T354]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.465548][  T354]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.465549][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465552][  T354]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.465555][  T354]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.465557][  T354]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.465561][  T354]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.465565][  T354]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.465568][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.465572][  T354]  _printk (kernel/printk/printk.c:2504)
[   24.465576][  T354]  ? snapshot_read.cold (user.c:?)
[   24.465580][  T354]  ? br_multicast_flood (??:?) bridge
[   24.465596][  T354]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.465598][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.465599][  T354]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.465603][  T354] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.465614][  T354] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   24.465622][  T354] new_nbp (net/bridge/br_if.c:449) bridge
[   24.465631][  T354] br_add_if (net/bridge/br_if.c:592) bridge
[   24.465638][  T354]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.465642][  T354]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.465645][  T354]  ? __kernel_text_address (kernel/extable.c:79)
[   24.465649][  T354]  do_set_master (net/core/rtnetlink.c:3071)
[   24.465654][  T354]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.465657][  T354]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.465660][  T354]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.465661][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.465663][  T354]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.465667][  T354]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.465669][  T354]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.465671][  T354]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.465674][  T354]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.465677][  T354]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.465678][  T354]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.465681][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465683][  T354]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   24.465686][  T354]  ? ___sys_sendmsg (net/socket.c:2757)
[   24.465691][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.465693][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.465695][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465698][  T354]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.465699][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465701][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465704][  T354]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.465708][  T354]  ? __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)
[   24.465711][  T354]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.465713][  T354]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.465716][  T354]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.465718][  T354]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.465723][  T354]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.465728][  T354]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.465733][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.465735][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465739][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.465741][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.465743][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.465745][  T354]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.465749][  T354]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.465751][  T354]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.465754][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.465755][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465760][  T354]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.465762][  T354]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.465765][  T354]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.465767][  T354]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.465770][  T354]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.465776][  T354]  ? 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))
[   24.465777][  T354]  ? 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))
[   24.465782][  T354]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.465786][  T354]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.465788][  T354]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.465792][  T354]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.465796][  T354]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.465800][  T354]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   24.465805][  T354]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.465807][  T354]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.465809][  T354]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.465811][  T354]  ? move_addr_to_kernel (net/socket.c:258)
[   24.465818][  T354]  ___sys_sendmsg (net/socket.c:2767)
[   24.465821][  T354]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.465841][  T354]  __sys_sendmsg (net/socket.c:2799)
[   24.465844][  T354]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.465850][  T354]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.465854][  T354]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.465856][  T354]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.465860][  T354]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.465862][  T354] RIP: 0033:0x7f29aa2a054e
[   24.465865][  T354] 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
[   24.465868][  T354] RSP: 002b:00007ffcb4b46650 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.465870][  T354] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f29aa2a054e
[   24.465872][  T354] RDX: 0000000000000000 RSI: 00007ffcb4b46700 RDI: 0000000000000005
[   24.465873][  T354] RBP: 00007ffcb4b46660 R08: 0000000000000000 R09: 0000000000000000
[   24.465874][  T354] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac65
[   24.465874][  T354] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcb4b46dc0
| [   29.186427][  T407] softirqs last disabled at (14386): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   29.186430][  T407] Preemption disabled at:
| [   29.186431][  T407] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.186441][  T407] Tainted: [W]=WARN
[   29.186442][  T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.186443][  T407] Call Trace:
[   29.186445][  T407]  <TASK>
[   29.186447][  T407]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.186453][  T407]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.186455][  T407]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.186460][  T407]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.186464][  T407]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.186470][  T407]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.186472][  T407]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.186478][  T407]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.186481][  T407]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.186484][  T407]  put_chars (drivers/char/virtio_console.c:1176)
[   29.186487][  T407]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.186489][  T407]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.186493][  T407]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.186499][  T407]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.186505][  T407]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.186508][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186510][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.186514][  T407]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.186518][  T407]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.186520][  T407]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.186523][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186526][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.186530][  T407]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.186534][  T407]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.186536][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.186542][  T407]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.186545][  T407]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.186547][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186549][  T407]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.186553][  T407]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.186554][  T407]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.186558][  T407]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.186562][  T407]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.186564][  T407]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.186566][  T407]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.186568][  T407]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.186570][  T407]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.186572][  T407]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.186574][  T407]  ? __sys_sendmsg (net/socket.c:2799)
[   29.186576][  T407]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.186580][  T407]  _printk (kernel/printk/printk.c:2504)
[   29.186584][  T407]  ? snapshot_read.cold (user.c:?)
[   29.186593][  T407]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.186596][  T407]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.186600][  T407]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.186602][  T407]  ? netdev_notice (net/core/dev.c:13194)
[   29.186606][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186609][  T407]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   29.186612][  T407]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   29.186613][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.186616][  T407]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   29.186619][  T407]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   29.186624][  T407]  dev_set_allmulti (net/core/dev_api.c:315)
[   29.186628][  T407] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   29.186642][  T407]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.186648][  T407] br_del_if (net/bridge/br_if.c:732) bridge
[   29.186656][  T407]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   29.186659][  T407]  do_set_master (net/core/rtnetlink.c:3055)
[   29.186664][  T407]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   29.186668][  T407]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.186671][  T407]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.186672][  T407]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.186675][  T407]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.186679][  T407]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.186681][  T407]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.186683][  T407]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.186686][  T407]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.186689][  T407]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.186691][  T407]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.186693][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.186695][  T407]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   29.186697][  T407]  ? ___sys_sendmsg (net/socket.c:2757)
[   29.186701][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.186703][  T407]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.186706][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186708][  T407]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.186710][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186711][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186714][  T407]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.186717][  T407]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   29.186719][  T407]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.186721][  T407]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.186725][  T407]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.186727][  T407]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.186732][  T407]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.186737][  T407]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.186743][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.186744][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.186749][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.186751][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.186753][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.186755][  T407]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.186759][  T407]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.186761][  T407]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.186764][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.186765][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.186770][  T407]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.186772][  T407]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.186775][  T407]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.186777][  T407]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.186780][  T407]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.186786][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   29.186788][  T407]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   29.186792][  T407]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.186796][  T407]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.186799][  T407]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.186803][  T407]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.186807][  T407]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.186810][  T407]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   29.186816][  T407]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.186818][  T407]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.186820][  T407]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.186822][  T407]  ? move_addr_to_kernel (net/socket.c:258)
[   29.186830][  T407]  ___sys_sendmsg (net/socket.c:2767)
[   29.186832][  T407]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.186854][  T407]  __sys_sendmsg (net/socket.c:2799)
[   29.186857][  T407]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.186864][  T407]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.186867][  T407]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.186869][  T407]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.186872][  T407]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.186874][  T407] RIP: 0033:0x7f9b4862754e
[   29.186878][  T407] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.186880][  T407] RSP: 002b:00007ffc38e48af0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.186883][  T407] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9b4862754e
[   29.186885][  T407] RDX: 0000000000000000 RSI: 00007ffc38e48ba0 RDI: 0000000000000005
[   29.186885][  T407] RBP: 00007ffc38e48b00 R08: 0000000000000000 R09: 0000000000000000
[   29.186886][  T407] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ac6a


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