======================================
| [   10.446854][  T220] softirqs last disabled at (21514): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.446856][  T220] Preemption disabled at:
| [   10.446857][  T220] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.446866][  T220] Tainted: [W]=WARN
[   10.446867][  T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.446869][  T220] Call Trace:
[   10.446870][  T220]  <TASK>
[   10.446872][  T220]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.446877][  T220]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.446879][  T220]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.446884][  T220]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.446888][  T220]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.446893][  T220]  __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))
[   10.446895][  T220]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.446900][  T220]  ? 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)
[   10.446910][  T220]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.446913][  T220]  put_chars (drivers/char/virtio_console.c:1176)
[   10.446916][  T220]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.446920][  T220]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.446923][  T220]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.446926][  T220]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.446928][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.446930][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.446934][  T220]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.446936][  T220]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.446939][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446943][  T220]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.446947][  T220]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.446950][  T220]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.446952][  T220]  ? 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))
[   10.446955][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446957][  T220]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.446961][  T220]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.446965][  T220]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.446967][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.446972][  T220]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.446974][  T220]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.446976][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.446978][  T220]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.446982][  T220]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.446983][  T220]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.446987][  T220]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.446990][  T220]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.446996][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.446998][  T220]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.447002][  T220]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.447005][  T220]  _printk (kernel/printk/printk.c:2504)
[   10.447009][  T220]  ? snapshot_read.cold (user.c:?)
[   10.447012][  T220]  ? br_multicast_flood (??:?) bridge
[   10.447025][  T220]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.447026][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.447027][  T220]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.447031][  T220] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.447041][  T220] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.447050][  T220] new_nbp (net/bridge/br_if.c:449) bridge
[   10.447059][  T220] br_add_if (net/bridge/br_if.c:592) bridge
[   10.447066][  T220]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.447070][  T220]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.447073][  T220]  ? __kernel_text_address (kernel/extable.c:79)
[   10.447076][  T220]  do_set_master (net/core/rtnetlink.c:3071)
[   10.447081][  T220]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.447084][  T220]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.447087][  T220]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.447088][  T220]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.447091][  T220]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.447094][  T220]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.447097][  T220]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.447099][  T220]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.447102][  T220]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.447105][  T220]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.447107][  T220]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.447109][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.447111][  T220]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   10.447114][  T220]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.447118][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.447120][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.447123][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.447125][  T220]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.447127][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.447128][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.447131][  T220]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.447134][  T220]  ? __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)
[   10.447136][  T220]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.447138][  T220]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.447141][  T220]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.447143][  T220]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.447148][  T220]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.447153][  T220]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.447158][  T220]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.447160][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.447164][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.447166][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.447168][  T220]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.447169][  T220]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.447173][  T220]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.447175][  T220]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.447178][  T220]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.447179][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.447183][  T220]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.447185][  T220]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.447189][  T220]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.447190][  T220]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.447193][  T220]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.447199][  T220]  ? 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))
[   10.447201][  T220]  ? 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))
[   10.447205][  T220]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.447208][  T220]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.447211][  T220]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.447215][  T220]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.447218][  T220]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.447222][  T220]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.447227][  T220]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.447229][  T220]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.447232][  T220]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.447233][  T220]  ? move_addr_to_kernel (net/socket.c:258)
[   10.447240][  T220]  ___sys_sendmsg (net/socket.c:2767)
[   10.447243][  T220]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.447260][  T220]  __sys_sendmsg (net/socket.c:2799)
[   10.447263][  T220]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.447269][  T220]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.447272][  T220]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.447275][  T220]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.447278][  T220]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.447280][  T220] RIP: 0033:0x7f701453f54e
[   10.447283][  T220] 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
[   10.447285][  T220] RSP: 002b:00007ffdfaff3340 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.447288][  T220] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f701453f54e
[   10.447289][  T220] RDX: 0000000000000000 RSI: 00007ffdfaff33f0 RDI: 0000000000000005
[   10.447290][  T220] RBP: 00007ffdfaff3350 R08: 0000000000000000 R09: 0000000000000000
[   10.447291][  T220] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af02
[   10.447291][  T220] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdfaff3ab0
| [   16.190427][  T265] softirqs last disabled at (24818): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   16.190435][  T265] Preemption disabled at:
| [   16.190435][  T265] 0x0
| [   16.190446][  T265] Tainted: [W]=WARN
[   16.190447][  T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.190449][  T265] Call Trace:
[   16.190450][  T265]  <TASK>
[   16.190452][  T265]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.190458][  T265]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.190463][  T265]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.190467][  T265]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.190472][  T265]  __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))
[   16.190474][  T265]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.190480][  T265]  ? 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)
[   16.190482][  T265]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.190485][  T265]  put_chars (drivers/char/virtio_console.c:1176)
[   16.190488][  T265]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.190490][  T265]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   16.190493][  T265]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   16.190497][  T265]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.190500][  T265]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.190502][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190503][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190507][  T265]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.190508][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.190513][  T265]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.190516][  T265]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.190520][  T265]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.190522][  T265]  ? 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))
[   16.190525][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.190529][  T265]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.190533][  T265]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.190537][  T265]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.190539][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190544][  T265]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.190547][  T265]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.190548][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.190551][  T265]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.190554][  T265]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.190556][  T265]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.190559][  T265]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.190563][  T265]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.190565][  T265]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   16.190567][  T265]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.190570][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.190574][  T265]  _printk (kernel/printk/printk.c:2504)
[   16.190578][  T265]  ? snapshot_read.cold (user.c:?)
[   16.190586][  T265] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.190597][  T265] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   16.190606][  T265] br_device_event (net/bridge/br.c:111) bridge
[   16.190614][  T265]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   16.190618][  T265]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   16.190624][  T265]  notifier_call_chain (kernel/notifier.c:85)
[   16.190630][  T265]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   16.190635][  T265]  ? netif_change_name (net/core/dev.c:1517)
[   16.190639][  T265]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   16.190642][  T265]  ? __kernel_text_address (kernel/extable.c:79)
[   16.190644][  T265]  ? write_profile (profile.c:?)
[   16.190646][  T265]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.190651][  T265]  netif_change_flags (net/core/dev.c:9882)
[   16.190655][  T265]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   16.190658][  T265]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.190660][  T265]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.190661][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.190663][  T265]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.190667][  T265]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.190669][  T265]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.190671][  T265]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.190673][  T265]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.190677][  T265]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.190678][  T265]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.190681][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190683][  T265]  ? netlink_seq_next (net/netlink/af_netlink.c:2684)
[   16.190686][  T265]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.190690][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.190692][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.190695][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.190697][  T265]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.190699][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.190700][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.190703][  T265]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.190706][  T265]  ? __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)
[   16.190708][  T265]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.190710][  T265]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.190714][  T265]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.190719][  T265]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.190724][  T265]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.190729][  T265]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.190731][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190735][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.190737][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.190739][  T265]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.190741][  T265]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.190745][  T265]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.190747][  T265]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.190750][  T265]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.190751][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190755][  T265]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.190757][  T265]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.190760][  T265]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.190762][  T265]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.190765][  T265]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.190771][  T265]  ? 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))
[   16.190772][  T265]  ? 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))
[   16.190777][  T265]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.190780][  T265]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.190783][  T265]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.190787][  T265]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.190791][  T265]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.190794][  T265]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.190800][  T265]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.190802][  T265]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.190804][  T265]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.190806][  T265]  ? move_addr_to_kernel (net/socket.c:258)
[   16.190813][  T265]  ___sys_sendmsg (net/socket.c:2767)
[   16.190816][  T265]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.190832][  T265]  __sys_sendmsg (net/socket.c:2799)
[   16.190835][  T265]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.190841][  T265]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.190844][  T265]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.190847][  T265]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.190850][  T265]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.190852][  T265] RIP: 0033:0x7f23c926a54e
[   16.190854][  T265] 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
[   16.190855][  T265] RSP: 002b:00007ffd20559060 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.190858][  T265] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f23c926a54e
[   16.190860][  T265] RDX: 0000000000000000 RSI: 00007ffd20559110 RDI: 0000000000000005
[   16.190860][  T265] RBP: 00007ffd20559070 R08: 0000000000000000 R09: 0000000000000000
[   16.190861][  T265] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af08


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