======================================
| [   10.101755][  T213] softirqs last disabled at (13494): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.101757][  T213] Preemption disabled at:
| [   10.101758][  T213] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.101767][  T213] Tainted: [W]=WARN
[   10.101768][  T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.101770][  T213] Call Trace:
[   10.101771][  T213]  <TASK>
[   10.101773][  T213]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.101779][  T213]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.101782][  T213]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.101787][  T213]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.101791][  T213]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.101796][  T213]  __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))
[   10.101798][  T213]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.101804][  T213]  ? 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)
[   10.101807][  T213]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.101810][  T213]  put_chars (drivers/char/virtio_console.c:1176)
[   10.101813][  T213]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.101818][  T213]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.101821][  T213]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.101824][  T213]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.101826][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.101828][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.101832][  T213]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.101834][  T213]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.101837][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.101842][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.101846][  T213]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.101849][  T213]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.101851][  T213]  ? 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))
[   10.101855][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.101857][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.101861][  T213]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.101866][  T213]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.101868][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.101873][  T213]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.101876][  T213]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.101878][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.101888][  T213]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.101892][  T213]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.101894][  T213]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.101898][  T213]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.101902][  T213]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.101904][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.101906][  T213]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.101910][  T213]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.101914][  T213]  _printk (kernel/printk/printk.c:2504)
[   10.101917][  T213]  ? snapshot_read.cold (user.c:?)
[   10.101921][  T213]  ? br_multicast_flood (??:?) bridge
[   10.101935][  T213]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.101936][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.101937][  T213]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.101942][  T213] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.101955][  T213] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.101965][  T213] new_nbp (net/bridge/br_if.c:449) bridge
[   10.101975][  T213] br_add_if (net/bridge/br_if.c:592) bridge
[   10.101983][  T213]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.101988][  T213]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.101991][  T213]  ? __kernel_text_address (kernel/extable.c:79)
[   10.101995][  T213]  do_set_master (net/core/rtnetlink.c:3071)
[   10.102000][  T213]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.102003][  T213]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.102007][  T213]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.102009][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.102011][  T213]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.102015][  T213]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.102018][  T213]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.102020][  T213]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.102023][  T213]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.102026][  T213]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.102028][  T213]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.102031][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.102033][  T213]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.102036][  T213]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.102041][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.102043][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.102046][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.102049][  T213]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.102051][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.102052][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.102055][  T213]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.102059][  T213]  ? __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)
[   10.102061][  T213]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.102063][  T213]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.102066][  T213]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.102068][  T213]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.102073][  T213]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.102078][  T213]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.102084][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.102086][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.102090][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.102092][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.102094][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.102096][  T213]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.102100][  T213]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.102102][  T213]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.102106][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.102107][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.102112][  T213]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.102114][  T213]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.102117][  T213]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.102119][  T213]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.102122][  T213]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.102128][  T213]  ? 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))
[   10.102130][  T213]  ? 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))
[   10.102134][  T213]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.102138][  T213]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.102141][  T213]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.102145][  T213]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.102148][  T213]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.102152][  T213]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.102158][  T213]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.102160][  T213]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.102162][  T213]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.102164][  T213]  ? move_addr_to_kernel (net/socket.c:258)
[   10.102171][  T213]  ___sys_sendmsg (net/socket.c:2767)
[   10.102174][  T213]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.102190][  T213]  __sys_sendmsg (net/socket.c:2799)
[   10.102193][  T213]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.102199][  T213]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.102206][  T213]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.102208][  T213]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.102212][  T213]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.102214][  T213] RIP: 0033:0x7f22dc0ca54e
[   10.102217][  T213] 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
[   10.102219][  T213] RSP: 002b:00007ffdff26c120 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.102222][  T213] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f22dc0ca54e
[   10.102224][  T213] RDX: 0000000000000000 RSI: 00007ffdff26c1d0 RDI: 0000000000000005
[   10.102224][  T213] RBP: 00007ffdff26c130 R08: 0000000000000000 R09: 0000000000000000
[   10.102225][  T213] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910698
[   10.102226][  T213] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdff26c890
| [   15.804849][  T254] softirqs last disabled at (23324): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   15.804857][  T254] Preemption disabled at:
| [   15.804857][  T254] 0x0
| [   15.804867][  T254] Tainted: [W]=WARN
[   15.804868][  T254] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.804869][  T254] Call Trace:
[   15.804871][  T254]  <TASK>
[   15.804872][  T254]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.804879][  T254]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.804884][  T254]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.804888][  T254]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.804899][  T254]  __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))
[   15.804901][  T254]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.804907][  T254]  ? 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)
[   15.804909][  T254]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.804912][  T254]  put_chars (drivers/char/virtio_console.c:1176)
[   15.804915][  T254]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.804917][  T254]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   15.804920][  T254]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   15.804924][  T254]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.804927][  T254]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.804929][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804930][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804935][  T254]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.804936][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.804940][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.804944][  T254]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.804948][  T254]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.804950][  T254]  ? 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))
[   15.804953][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804957][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.804961][  T254]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.804965][  T254]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.804966][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.804971][  T254]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.804974][  T254]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.804976][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.804978][  T254]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.804982][  T254]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.804984][  T254]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.804987][  T254]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.804991][  T254]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.804993][  T254]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.804995][  T254]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.804998][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.805002][  T254]  _printk (kernel/printk/printk.c:2504)
[   15.805006][  T254]  ? snapshot_read.cold (user.c:?)
[   15.805013][  T254] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.805024][  T254] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   15.805033][  T254] br_device_event (net/bridge/br.c:111) bridge
[   15.805040][  T254]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   15.805044][  T254]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   15.805050][  T254]  notifier_call_chain (kernel/notifier.c:85)
[   15.805056][  T254]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   15.805060][  T254]  ? netif_change_name (net/core/dev.c:1517)
[   15.805064][  T254]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   15.805067][  T254]  ? __kernel_text_address (kernel/extable.c:79)
[   15.805069][  T254]  ? write_profile (profile.c:?)
[   15.805072][  T254]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.805076][  T254]  netif_change_flags (net/core/dev.c:9882)
[   15.805080][  T254]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   15.805084][  T254]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.805086][  T254]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.805087][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.805089][  T254]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.805092][  T254]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.805095][  T254]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.805097][  T254]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.805099][  T254]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.805102][  T254]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.805104][  T254]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.805107][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.805108][  T254]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.805111][  T254]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.805116][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.805118][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.805120][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.805123][  T254]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.805124][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.805126][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.805128][  T254]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.805132][  T254]  ? __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)
[   15.805133][  T254]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.805136][  T254]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.805139][  T254]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.805144][  T254]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.805149][  T254]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.805154][  T254]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.805156][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.805161][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.805162][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.805164][  T254]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.805166][  T254]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.805170][  T254]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.805172][  T254]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.805175][  T254]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.805176][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.805181][  T254]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.805182][  T254]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.805186][  T254]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.805188][  T254]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.805190][  T254]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.805197][  T254]  ? 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))
[   15.805198][  T254]  ? 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))
[   15.805206][  T254]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.805210][  T254]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.805212][  T254]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.805216][  T254]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.805220][  T254]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.805224][  T254]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.805229][  T254]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.805232][  T254]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.805234][  T254]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.805235][  T254]  ? move_addr_to_kernel (net/socket.c:258)
[   15.805243][  T254]  ___sys_sendmsg (net/socket.c:2767)
[   15.805245][  T254]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.805261][  T254]  __sys_sendmsg (net/socket.c:2799)
[   15.805264][  T254]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.805270][  T254]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.805274][  T254]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.805276][  T254]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.805279][  T254]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.805281][  T254] RIP: 0033:0x7f832762f54e
[   15.805283][  T254] 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
[   15.805285][  T254] RSP: 002b:00007ffcf26fe3e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.805288][  T254] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f832762f54e
[   15.805289][  T254] RDX: 0000000000000000 RSI: 00007ffcf26fe490 RDI: 0000000000000005
[   15.805290][  T254] RBP: 00007ffcf26fe3f0 R08: 0000000000000000 R09: 0000000000000000
[   15.805291][  T254] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91069e


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