======================================
| [   10.129822][  T219] softirqs last disabled at (13436): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.129824][  T219] Preemption disabled at:
| [   10.129825][  T219] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.129834][  T219] Tainted: [W]=WARN
[   10.129835][  T219] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.129837][  T219] Call Trace:
[   10.129838][  T219]  <TASK>
[   10.129840][  T219]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.129846][  T219]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.129848][  T219]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.129853][  T219]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.129857][  T219]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.129862][  T219]  __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))
[   10.129865][  T219]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.129871][  T219]  ? 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)
[   10.129873][  T219]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.129877][  T219]  put_chars (drivers/char/virtio_console.c:1176)
[   10.129879][  T219]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.129884][  T219]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.129887][  T219]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.129891][  T219]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.129892][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.129894][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.129898][  T219]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.129900][  T219]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.129903][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.129907][  T219]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.129911][  T219]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.129915][  T219]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.129917][  T219]  ? 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))
[   10.129920][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.129922][  T219]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.129927][  T219]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.129931][  T219]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.129933][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.129938][  T219]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.129941][  T219]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.129943][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.129945][  T219]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.129949][  T219]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.129950][  T219]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.129954][  T219]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.129958][  T219]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.129960][  T219]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.129962][  T219]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.129967][  T219]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.129970][  T219]  _printk (kernel/printk/printk.c:2504)
[   10.129974][  T219]  ? snapshot_read.cold (user.c:?)
[   10.129977][  T219]  ? br_multicast_flood (??:?) bridge
[   10.129990][  T219]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.129991][  T219]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.129992][  T219]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.129997][  T219] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.130007][  T219] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.130015][  T219] new_nbp (net/bridge/br_if.c:449) bridge
[   10.130025][  T219] br_add_if (net/bridge/br_if.c:592) bridge
[   10.130032][  T219]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.130036][  T219]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.130039][  T219]  ? __kernel_text_address (kernel/extable.c:79)
[   10.130043][  T219]  do_set_master (net/core/rtnetlink.c:3071)
[   10.130048][  T219]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.130051][  T219]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.130054][  T219]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.130055][  T219]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.130058][  T219]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.130062][  T219]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.130064][  T219]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.130066][  T219]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.130069][  T219]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.130072][  T219]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.130074][  T219]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.130076][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.130078][  T219]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.130081][  T219]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.130086][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.130088][  T219]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.130090][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.130093][  T219]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.130094][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.130096][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.130099][  T219]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.130103][  T219]  ? __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)
[   10.130104][  T219]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.130106][  T219]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.130110][  T219]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.130114][  T219]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.130119][  T219]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.130124][  T219]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.130130][  T219]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.130132][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.130136][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.130138][  T219]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.130140][  T219]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.130142][  T219]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.130146][  T219]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.130148][  T219]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.130151][  T219]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.130152][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.130157][  T219]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.130158][  T219]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.130162][  T219]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.130164][  T219]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.130167][  T219]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.130173][  T219]  ? 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))
[   10.130174][  T219]  ? 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))
[   10.130179][  T219]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.130182][  T219]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.130185][  T219]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.130189][  T219]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.130193][  T219]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.130197][  T219]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.130202][  T219]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.130205][  T219]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.130207][  T219]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.130209][  T219]  ? move_addr_to_kernel (net/socket.c:258)
[   10.130216][  T219]  ___sys_sendmsg (net/socket.c:2767)
[   10.130219][  T219]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.130235][  T219]  __sys_sendmsg (net/socket.c:2799)
[   10.130238][  T219]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.130244][  T219]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.130248][  T219]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.130250][  T219]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.130253][  T219]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.130255][  T219] RIP: 0033:0x7f1e31b4b54e
[   10.130259][  T219] 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
[   10.130261][  T219] RSP: 002b:00007ffd0b7db200 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.130263][  T219] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1e31b4b54e
[   10.130265][  T219] RDX: 0000000000000000 RSI: 00007ffd0b7db2b0 RDI: 0000000000000005
[   10.130266][  T219] RBP: 00007ffd0b7db210 R08: 0000000000000000 R09: 0000000000000000
[   10.130267][  T219] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9110c1
[   10.130268][  T219] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd0b7db970
| [   15.781147][  T264] softirqs last disabled at (18892): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   15.781155][  T264] Preemption disabled at:
| [   15.781156][  T264] 0x0
| [   15.781165][  T264] Tainted: [W]=WARN
[   15.781166][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   15.781168][  T264] Call Trace:
[   15.781170][  T264]  <TASK>
[   15.781171][  T264]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   15.781178][  T264]  __might_resched.cold (kernel/sched/core.c:9234)
[   15.781182][  T264]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   15.781186][  T264]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   15.781191][  T264]  __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))
[   15.781194][  T264]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.781200][  T264]  ? 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)
[   15.781202][  T264]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   15.781205][  T264]  put_chars (drivers/char/virtio_console.c:1176)
[   15.781208][  T264]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   15.781210][  T264]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   15.781214][  T264]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   15.781217][  T264]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   15.781220][  T264]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   15.781222][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781224][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781228][  T264]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   15.781229][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.781233][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.781237][  T264]  console_emit_next_record (kernel/printk/printk.c:3183)
[   15.781241][  T264]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   15.781243][  T264]  ? 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))
[   15.781246][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.781250][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.781254][  T264]  console_flush_one_record (kernel/printk/printk.c:3268)
[   15.781258][  T264]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   15.781260][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781265][  T264]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   15.781268][  T264]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   15.781270][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.781272][  T264]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   15.781276][  T264]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   15.781277][  T264]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   15.781281][  T264]  vprintk_emit (kernel/printk/printk.c:2479)
[   15.781285][  T264]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   15.781287][  T264]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   15.781289][  T264]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.781292][  T264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.781296][  T264]  _printk (kernel/printk/printk.c:2504)
[   15.781300][  T264]  ? snapshot_read.cold (user.c:?)
[   15.781307][  T264] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   15.781318][  T264] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   15.781329][  T264] br_device_event (net/bridge/br.c:111) bridge
[   15.781337][  T264]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   15.781341][  T264]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   15.781347][  T264]  notifier_call_chain (kernel/notifier.c:85)
[   15.781352][  T264]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   15.781357][  T264]  ? netif_change_name (net/core/dev.c:1517)
[   15.781361][  T264]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   15.781364][  T264]  ? __kernel_text_address (kernel/extable.c:79)
[   15.781366][  T264]  ? write_profile (profile.c:?)
[   15.781369][  T264]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   15.781373][  T264]  netif_change_flags (net/core/dev.c:9882)
[   15.781377][  T264]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   15.781381][  T264]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   15.781383][  T264]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   15.781384][  T264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   15.781386][  T264]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   15.781389][  T264]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   15.781392][  T264]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   15.781394][  T264]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   15.781397][  T264]  ? kasan_save_stack (mm/kasan/common.c:58)
[   15.781399][  T264]  ? kasan_save_stack (mm/kasan/common.c:57)
[   15.781401][  T264]  ? kasan_save_track (mm/kasan/common.c:78)
[   15.781404][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781406][  T264]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   15.781409][  T264]  ? ___sys_sendmsg (net/socket.c:2757)
[   15.781413][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.781415][  T264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.781418][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.781421][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   15.781422][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.781424][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.781426][  T264]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   15.781430][  T264]  ? __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)
[   15.781432][  T264]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   15.781434][  T264]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   15.781437][  T264]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   15.781442][  T264]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   15.781448][  T264]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   15.781453][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.781455][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781459][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.781461][  T264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.781463][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.781470][  T264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   15.781473][  T264]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   15.781475][  T264]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   15.781479][  T264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.781480][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781485][  T264]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   15.781486][  T264]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   15.781490][  T264]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   15.781492][  T264]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   15.781495][  T264]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   15.781501][  T264]  ? 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))
[   15.781502][  T264]  ? 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))
[   15.781507][  T264]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   15.781510][  T264]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   15.781513][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   15.781517][  T264]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   15.781521][  T264]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   15.781525][  T264]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   15.781531][  T264]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   15.781533][  T264]  ? copy_msghdr_from_user (net/socket.c:2650)
[   15.781535][  T264]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   15.781537][  T264]  ? move_addr_to_kernel (net/socket.c:258)
[   15.781544][  T264]  ___sys_sendmsg (net/socket.c:2767)
[   15.781547][  T264]  ? copy_msghdr_from_user (net/socket.c:2619)
[   15.781563][  T264]  __sys_sendmsg (net/socket.c:2799)
[   15.781566][  T264]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   15.781572][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   15.781576][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   15.781578][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   15.781581][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   15.781583][  T264] RIP: 0033:0x7fec655fe54e
[   15.781586][  T264] 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
[   15.781588][  T264] RSP: 002b:00007ffe71041860 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   15.781591][  T264] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fec655fe54e
[   15.781592][  T264] RDX: 0000000000000000 RSI: 00007ffe71041910 RDI: 0000000000000005
[   15.781593][  T264] RBP: 00007ffe71041870 R08: 0000000000000000 R09: 0000000000000000
[   15.781594][  T264] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9110c7


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