======================================
| [   11.479769][  T241] softirqs last disabled at (14592): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.479771][  T241] Preemption disabled at:
| [   11.479772][  T241] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.479782][  T241] Tainted: [W]=WARN
[   11.479783][  T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.479785][  T241] Call Trace:
[   11.479786][  T241]  <TASK>
[   11.479788][  T241]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.479794][  T241]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.479796][  T241]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.479801][  T241]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.479805][  T241]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.479811][  T241]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.479813][  T241]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.479818][  T241]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.479821][  T241]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.479824][  T241]  put_chars (drivers/char/virtio_console.c:1176)
[   11.479827][  T241]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.479832][  T241]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.479835][  T241]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.479838][  T241]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.479840][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.479842][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.479846][  T241]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.479848][  T241]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.479851][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.479855][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.479859][  T241]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.479863][  T241]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.479870][  T241]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.479873][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.479875][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.479879][  T241]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.479883][  T241]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.479885][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.479891][  T241]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.479893][  T241]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.479895][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.479898][  T241]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.479901][  T241]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.479903][  T241]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.479906][  T241]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.479910][  T241]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.479913][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.479914][  T241]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.479919][  T241]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.479922][  T241]  _printk (kernel/printk/printk.c:2504)
[   11.479926][  T241]  ? snapshot_read.cold (user.c:?)
[   11.479929][  T241]  ? br_multicast_flood (??:?) bridge
[   11.479942][  T241]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.479944][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.479945][  T241]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.479950][  T241] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.479960][  T241] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.479968][  T241] new_nbp (net/bridge/br_if.c:449) bridge
[   11.479977][  T241] br_add_if (net/bridge/br_if.c:592) bridge
[   11.479984][  T241]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.479989][  T241]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.479992][  T241]  ? __kernel_text_address (kernel/extable.c:79)
[   11.479996][  T241]  do_set_master (net/core/rtnetlink.c:3071)
[   11.480000][  T241]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.480004][  T241]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.480007][  T241]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.480008][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.480011][  T241]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.480014][  T241]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.480017][  T241]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.480019][  T241]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.480021][  T241]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.480025][  T241]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.480026][  T241]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.480029][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.480031][  T241]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   11.480034][  T241]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.480039][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.480041][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.480043][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.480045][  T241]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.480047][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.480049][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.480051][  T241]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.480055][  T241]  ? __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)
[   11.480057][  T241]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.480059][  T241]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.480063][  T241]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.480064][  T241]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.480069][  T241]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.480075][  T241]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.480080][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.480082][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.480086][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.480088][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.480090][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.480092][  T241]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.480096][  T241]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.480098][  T241]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.480101][  T241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.480102][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.480107][  T241]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.480109][  T241]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.480112][  T241]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.480114][  T241]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.480117][  T241]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.480123][  T241]  ? 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))
[   11.480124][  T241]  ? 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))
[   11.480129][  T241]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.480133][  T241]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.480135][  T241]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.480139][  T241]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.480143][  T241]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.480147][  T241]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.480152][  T241]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.480155][  T241]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.480157][  T241]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.480159][  T241]  ? move_addr_to_kernel (net/socket.c:258)
[   11.480166][  T241]  ___sys_sendmsg (net/socket.c:2767)
[   11.480169][  T241]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.480185][  T241]  __sys_sendmsg (net/socket.c:2799)
[   11.480188][  T241]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.480194][  T241]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.480198][  T241]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.480200][  T241]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.480203][  T241]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.480206][  T241] RIP: 0033:0x7efe85d3d54e
[   11.480209][  T241] 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
[   11.480211][  T241] RSP: 002b:00007ffee56edb10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.480214][  T241] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007efe85d3d54e
[   11.480215][  T241] RDX: 0000000000000000 RSI: 00007ffee56edbc0 RDI: 0000000000000005
[   11.480216][  T241] RBP: 00007ffee56edb20 R08: 0000000000000000 R09: 0000000000000000
[   11.480217][  T241] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918dd5
[   11.480218][  T241] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee56ee280
| [   26.600765][  T623] softirqs last disabled at (15524): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   26.600772][  T623] Preemption disabled at:
| [   26.600773][  T623] 0x0
| [   26.600783][  T623] Tainted: [W]=WARN
[   26.600784][  T623] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.600786][  T623] Call Trace:
[   26.600787][  T623]  <TASK>
[   26.600789][  T623]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.600795][  T623]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.600800][  T623]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.600804][  T623]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.600810][  T623]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.600812][  T623]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.600818][  T623]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.600821][  T623]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.600824][  T623]  put_chars (drivers/char/virtio_console.c:1176)
[   26.600827][  T623]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.600828][  T623]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   26.600832][  T623]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   26.600836][  T623]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.600839][  T623]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   26.600841][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.600842][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.600846][  T623]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.600848][  T623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.600852][  T623]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.600856][  T623]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.600860][  T623]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.600862][  T623]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   26.600865][  T623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.600869][  T623]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.600873][  T623]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.600877][  T623]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.600879][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.600884][  T623]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.600887][  T623]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.600889][  T623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.600891][  T623]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.600895][  T623]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.600896][  T623]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.600900][  T623]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.600904][  T623]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.600906][  T623]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.600908][  T623]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.600911][  T623]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.600916][  T623]  _printk (kernel/printk/printk.c:2504)
[   26.600919][  T623]  ? snapshot_read.cold (user.c:?)
[   26.600932][  T623] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   26.600943][  T623] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   26.600953][  T623] br_device_event (net/bridge/br.c:111) bridge
[   26.600960][  T623]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.600964][  T623]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   26.600971][  T623]  notifier_call_chain (kernel/notifier.c:85)
[   26.600976][  T623]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   26.600981][  T623]  ? netif_change_name (net/core/dev.c:1517)
[   26.600985][  T623]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   26.600988][  T623]  ? __kernel_text_address (kernel/extable.c:79)
[   26.600991][  T623]  ? write_profile (profile.c:?)
[   26.600993][  T623]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   26.600998][  T623]  netif_change_flags (net/core/dev.c:9882)
[   26.601002][  T623]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   26.601005][  T623]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.601008][  T623]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.601009][  T623]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.601011][  T623]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.601014][  T623]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.601017][  T623]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.601019][  T623]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.601021][  T623]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.601024][  T623]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.601026][  T623]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.601029][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.601031][  T623]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   26.601034][  T623]  ? ___sys_sendmsg (net/socket.c:2757)
[   26.601038][  T623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.601040][  T623]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.601043][  T623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.601045][  T623]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.601047][  T623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.601049][  T623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.601051][  T623]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.601055][  T623]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   26.601057][  T623]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.601059][  T623]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.601062][  T623]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.601068][  T623]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.601073][  T623]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.601078][  T623]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.601080][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.601085][  T623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.601086][  T623]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.601089][  T623]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.601090][  T623]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.601094][  T623]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.601096][  T623]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.601099][  T623]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.601101][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.601105][  T623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.601107][  T623]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.601111][  T623]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.601112][  T623]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.601115][  T623]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.601122][  T623]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   26.601123][  T623]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   26.601127][  T623]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.601131][  T623]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.601134][  T623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.601138][  T623]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.601142][  T623]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.601146][  T623]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   26.601152][  T623]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   26.601154][  T623]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.601156][  T623]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   26.601158][  T623]  ? move_addr_to_kernel (net/socket.c:258)
[   26.601166][  T623]  ___sys_sendmsg (net/socket.c:2767)
[   26.601169][  T623]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.601186][  T623]  __sys_sendmsg (net/socket.c:2799)
[   26.601189][  T623]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.601195][  T623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.601199][  T623]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.601201][  T623]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.601205][  T623]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.601207][  T623] RIP: 0033:0x7f7baccf654e
[   26.601209][  T623] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   26.601211][  T623] RSP: 002b:00007ffcc5041af0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.601214][  T623] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7baccf654e
[   26.601216][  T623] RDX: 0000000000000000 RSI: 00007ffcc5041ba0 RDI: 0000000000000005
[   26.601217][  T623] RBP: 00007ffcc5041b00 R08: 0000000000000000 R09: 0000000000000000
[   26.601217][  T623] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918de4


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