======================================
| [   11.383356][  T218] softirqs last disabled at (20376): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.383358][  T218] Preemption disabled at:
| [   11.383359][  T218] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.383368][  T218] Tainted: [W]=WARN
[   11.383368][  T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.383370][  T218] Call Trace:
[   11.383372][  T218]  <TASK>
[   11.383373][  T218]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.383379][  T218]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.383381][  T218]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.383386][  T218]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.383390][  T218]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.383395][  T218]  __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))
[   11.383397][  T218]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.383402][  T218]  ? 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)
[   11.383405][  T218]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.383408][  T218]  put_chars (drivers/char/virtio_console.c:1176)
[   11.383411][  T218]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.383415][  T218]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.383418][  T218]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.383421][  T218]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.383423][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383424][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383428][  T218]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.383430][  T218]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.383433][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383437][  T218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.383441][  T218]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.383444][  T218]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.383446][  T218]  ? 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))
[   11.383449][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383451][  T218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.383455][  T218]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.383459][  T218]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.383461][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383465][  T218]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.383468][  T218]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.383470][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383472][  T218]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.383476][  T218]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.383477][  T218]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.383480][  T218]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.383484][  T218]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.383487][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.383488][  T218]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.383493][  T218]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.383496][  T218]  _printk (kernel/printk/printk.c:2504)
[   11.383499][  T218]  ? snapshot_read.cold (user.c:?)
[   11.383503][  T218]  ? br_multicast_flood (??:?) bridge
[   11.383516][  T218]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.383517][  T218]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.383518][  T218]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.383522][  T218] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.383532][  T218] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.383540][  T218] new_nbp (net/bridge/br_if.c:449) bridge
[   11.383549][  T218] br_add_if (net/bridge/br_if.c:592) bridge
[   11.383556][  T218]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.383560][  T218]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.383562][  T218]  ? __kernel_text_address (kernel/extable.c:79)
[   11.383566][  T218]  do_set_master (net/core/rtnetlink.c:3071)
[   11.383570][  T218]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.383573][  T218]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.383576][  T218]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.383578][  T218]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.383580][  T218]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.383583][  T218]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.383586][  T218]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.383588][  T218]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.383590][  T218]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.383593][  T218]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.383595][  T218]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.383597][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383599][  T218]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.383602][  T218]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.383606][  T218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.383608][  T218]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.383611][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383613][  T218]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.383615][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383616][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383619][  T218]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.383622][  T218]  ? __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)
[   11.383624][  T218]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.383626][  T218]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.383629][  T218]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.383631][  T218]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.383635][  T218]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.383640][  T218]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.383645][  T218]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.383647][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383651][  T218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.383653][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.383655][  T218]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.383657][  T218]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.383661][  T218]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.383663][  T218]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.383665][  T218]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.383667][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383671][  T218]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.383673][  T218]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.383676][  T218]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.383678][  T218]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.383680][  T218]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.383686][  T218]  ? 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))
[   11.383688][  T218]  ? 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))
[   11.383692][  T218]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.383695][  T218]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.383698][  T218]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.383702][  T218]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.383705][  T218]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.383709][  T218]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.383714][  T218]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.383716][  T218]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.383719][  T218]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.383720][  T218]  ? move_addr_to_kernel (net/socket.c:258)
[   11.383727][  T218]  ___sys_sendmsg (net/socket.c:2767)
[   11.383730][  T218]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.383747][  T218]  __sys_sendmsg (net/socket.c:2799)
[   11.383750][  T218]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.383756][  T218]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.383759][  T218]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.383762][  T218]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.383765][  T218]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.383767][  T218] RIP: 0033:0x7f688bfbb54e
[   11.383770][  T218] 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
[   11.383772][  T218] RSP: 002b:00007ffe85738f60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.383774][  T218] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f688bfbb54e
[   11.383776][  T218] RDX: 0000000000000000 RSI: 00007ffe85739010 RDI: 0000000000000005
[   11.383777][  T218] RBP: 00007ffe85738f70 R08: 0000000000000000 R09: 0000000000000000
[   11.383777][  T218] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de42
[   11.383778][  T218] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe857396d0
| [   17.100445][  T263] softirqs last disabled at (19940): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   17.100453][  T263] Preemption disabled at:
| [   17.100454][  T263] 0x0
| [   17.100464][  T263] Tainted: [W]=WARN
[   17.100465][  T263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.100466][  T263] Call Trace:
[   17.100468][  T263]  <TASK>
[   17.100469][  T263]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.100476][  T263]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.100481][  T263]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.100485][  T263]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.100490][  T263]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   17.100493][  T263]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.100498][  T263]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   17.100501][  T263]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.100504][  T263]  put_chars (drivers/char/virtio_console.c:1176)
[   17.100507][  T263]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.100508][  T263]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   17.100512][  T263]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   17.100516][  T263]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.100519][  T263]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   17.100521][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100522][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100526][  T263]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.100528][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.100532][  T263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.100536][  T263]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.100540][  T263]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.100542][  T263]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   17.100545][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.100549][  T263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.100553][  T263]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.100557][  T263]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.100559][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100565][  T263]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.100567][  T263]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.100569][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.100572][  T263]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   17.100576][  T263]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.100577][  T263]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.100581][  T263]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.100585][  T263]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.100587][  T263]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.100590][  T263]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.100592][  T263]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.100597][  T263]  _printk (kernel/printk/printk.c:2504)
[   17.100600][  T263]  ? snapshot_read.cold (user.c:?)
[   17.100608][  T263] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   17.100619][  T263] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   17.100629][  T263] br_device_event (net/bridge/br.c:111) bridge
[   17.100637][  T263]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   17.100641][  T263]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   17.100647][  T263]  notifier_call_chain (kernel/notifier.c:85)
[   17.100653][  T263]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   17.100657][  T263]  ? netif_change_name (net/core/dev.c:1517)
[   17.100661][  T263]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   17.100664][  T263]  ? __kernel_text_address (kernel/extable.c:79)
[   17.100666][  T263]  ? write_profile (profile.c:?)
[   17.100669][  T263]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   17.100674][  T263]  netif_change_flags (net/core/dev.c:9882)
[   17.100678][  T263]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   17.100682][  T263]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.100684][  T263]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.100685][  T263]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.100687][  T263]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.100690][  T263]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.100693][  T263]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.100695][  T263]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.100698][  T263]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.100701][  T263]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.100702][  T263]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.100705][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100707][  T263]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   17.100710][  T263]  ? ___sys_sendmsg (net/socket.c:2757)
[   17.100715][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.100717][  T263]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.100719][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.100722][  T263]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.100723][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.100725][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.100728][  T263]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.100731][  T263]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   17.100733][  T263]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.100735][  T263]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.100739][  T263]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.100747][  T263]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.100752][  T263]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.100758][  T263]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.100760][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100764][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.100766][  T263]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.100768][  T263]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.100770][  T263]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.100774][  T263]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.100776][  T263]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.100779][  T263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.100781][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100785][  T263]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.100787][  T263]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.100790][  T263]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.100792][  T263]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.100795][  T263]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.100802][  T263]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   17.100803][  T263]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   17.100807][  T263]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.100811][  T263]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.100814][  T263]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.100818][  T263]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.100822][  T263]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.100826][  T263]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   17.100832][  T263]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   17.100834][  T263]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.100836][  T263]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   17.100838][  T263]  ? move_addr_to_kernel (net/socket.c:258)
[   17.100845][  T263]  ___sys_sendmsg (net/socket.c:2767)
[   17.100848][  T263]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.100864][  T263]  __sys_sendmsg (net/socket.c:2799)
[   17.100867][  T263]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.100874][  T263]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.100878][  T263]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.100880][  T263]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.100883][  T263]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.100886][  T263] RIP: 0033:0x7f1252d0954e
[   17.100888][  T263] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   17.100890][  T263] RSP: 002b:00007ffd2c92b100 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.100892][  T263] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1252d0954e
[   17.100894][  T263] RDX: 0000000000000000 RSI: 00007ffd2c92b1b0 RDI: 0000000000000005
[   17.100895][  T263] RBP: 00007ffd2c92b110 R08: 0000000000000000 R09: 0000000000000000
[   17.100895][  T263] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90de48


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