======================================
| [   10.546969][  T214] softirqs last disabled at (18144): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.546972][  T214] Preemption disabled at:
| [   10.546973][  T214] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.546982][  T214] Tainted: [W]=WARN
[   10.546983][  T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.546985][  T214] Call Trace:
[   10.546986][  T214]  <TASK>
[   10.546988][  T214]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.546994][  T214]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.546996][  T214]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.547001][  T214]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.547005][  T214]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.547010][  T214]  __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))
[   10.547013][  T214]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.547018][  T214]  ? 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)
[   10.547021][  T214]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.547024][  T214]  put_chars (drivers/char/virtio_console.c:1176)
[   10.547027][  T214]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.547032][  T214]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.547035][  T214]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.547038][  T214]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.547040][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547041][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547045][  T214]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.547047][  T214]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.547051][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547055][  T214]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.547059][  T214]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.547062][  T214]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.547064][  T214]  ? 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))
[   10.547067][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547070][  T214]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.547074][  T214]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.547078][  T214]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.547080][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547085][  T214]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.547088][  T214]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.547090][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547092][  T214]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.547096][  T214]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.547098][  T214]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.547101][  T214]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.547105][  T214]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.547107][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.547109][  T214]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.547113][  T214]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.547117][  T214]  _printk (kernel/printk/printk.c:2504)
[   10.547121][  T214]  ? snapshot_read.cold (user.c:?)
[   10.547124][  T214]  ? br_multicast_flood (??:?) bridge
[   10.547138][  T214]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.547139][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.547140][  T214]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.547145][  T214] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.547155][  T214] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.547163][  T214] new_nbp (net/bridge/br_if.c:449) bridge
[   10.547173][  T214] br_add_if (net/bridge/br_if.c:592) bridge
[   10.547180][  T214]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.547184][  T214]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.547187][  T214]  ? __kernel_text_address (kernel/extable.c:79)
[   10.547191][  T214]  do_set_master (net/core/rtnetlink.c:3071)
[   10.547196][  T214]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.547199][  T214]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.547202][  T214]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.547203][  T214]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.547206][  T214]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.547210][  T214]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.547212][  T214]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.547214][  T214]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.547217][  T214]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.547220][  T214]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.547222][  T214]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.547224][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547226][  T214]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.547229][  T214]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.547234][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.547236][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.547238][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547241][  T214]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.547242][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547244][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547246][  T214]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.547250][  T214]  ? __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)
[   10.547252][  T214]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.547254][  T214]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.547257][  T214]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.547259][  T214]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.547264][  T214]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.547269][  T214]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.547275][  T214]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.547277][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547281][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.547283][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.547285][  T214]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.547287][  T214]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.547291][  T214]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.547293][  T214]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.547296][  T214]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.547297][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547302][  T214]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.547304][  T214]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.547307][  T214]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.547309][  T214]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.547312][  T214]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.547318][  T214]  ? 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))
[   10.547320][  T214]  ? 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))
[   10.547324][  T214]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.547328][  T214]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.547330][  T214]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.547335][  T214]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.547338][  T214]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.547342][  T214]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.547348][  T214]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.547350][  T214]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.547352][  T214]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.547354][  T214]  ? move_addr_to_kernel (net/socket.c:258)
[   10.547361][  T214]  ___sys_sendmsg (net/socket.c:2767)
[   10.547364][  T214]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.547380][  T214]  __sys_sendmsg (net/socket.c:2799)
[   10.547383][  T214]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.547389][  T214]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.547393][  T214]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.547396][  T214]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.547399][  T214]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.547401][  T214] RIP: 0033:0x7fd4ede5454e
[   10.547405][  T214] 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
[   10.547407][  T214] RSP: 002b:00007ffddb60a9d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.547409][  T214] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd4ede5454e
[   10.547411][  T214] RDX: 0000000000000000 RSI: 00007ffddb60aa80 RDI: 0000000000000005
[   10.547412][  T214] RBP: 00007ffddb60a9e0 R08: 0000000000000000 R09: 0000000000000000
[   10.547413][  T214] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913a2d
[   10.547414][  T214] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffddb60b140
| [   16.215426][  T253] softirqs last disabled at (16978): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge
| [   16.215434][  T253] Preemption disabled at:
| [   16.215435][  T253] 0x0
| [   16.215444][  T253] Tainted: [W]=WARN
[   16.215445][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.215447][  T253] Call Trace:
[   16.215448][  T253]  <TASK>
[   16.215450][  T253]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.215456][  T253]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.215461][  T253]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.215465][  T253]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.215470][  T253]  __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))
[   16.215472][  T253]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.215478][  T253]  ? 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)
[   16.215480][  T253]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.215484][  T253]  put_chars (drivers/char/virtio_console.c:1176)
[   16.215486][  T253]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.215488][  T253]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   16.215492][  T253]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   16.215495][  T253]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.215498][  T253]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   16.215500][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215501][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215505][  T253]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.215506][  T253]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.215511][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.215514][  T253]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.215518][  T253]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.215520][  T253]  ? 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))
[   16.215523][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.215527][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.215531][  T253]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.215535][  T253]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.215537][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215542][  T253]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.215545][  T253]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.215546][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.215549][  T253]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   16.215552][  T253]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.215554][  T253]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.215557][  T253]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.215561][  T253]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.215563][  T253]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   16.215565][  T253]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.215568][  T253]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.215572][  T253]  _printk (kernel/printk/printk.c:2504)
[   16.215575][  T253]  ? snapshot_read.cold (user.c:?)
[   16.215583][  T253] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   16.215594][  T253] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   16.215603][  T253] br_device_event (net/bridge/br.c:111) bridge
[   16.215611][  T253]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   16.215615][  T253]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   16.215620][  T253]  notifier_call_chain (kernel/notifier.c:85)
[   16.215626][  T253]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   16.215631][  T253]  ? netif_change_name (net/core/dev.c:1517)
[   16.215634][  T253]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   16.215637][  T253]  ? __kernel_text_address (kernel/extable.c:79)
[   16.215639][  T253]  ? write_profile (profile.c:?)
[   16.215642][  T253]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   16.215646][  T253]  netif_change_flags (net/core/dev.c:9882)
[   16.215650][  T253]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   16.215654][  T253]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.215655][  T253]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.215657][  T253]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.215659][  T253]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.215662][  T253]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.215665][  T253]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.215666][  T253]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.215669][  T253]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.215672][  T253]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.215673][  T253]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.215676][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215678][  T253]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   16.215681][  T253]  ? ___sys_sendmsg (net/socket.c:2757)
[   16.215685][  T253]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.215687][  T253]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.215690][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.215692][  T253]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.215694][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.215695][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.215698][  T253]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.215701][  T253]  ? __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)
[   16.215703][  T253]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.215705][  T253]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.215708][  T253]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.215713][  T253]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.215719][  T253]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.215724][  T253]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.215726][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215730][  T253]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.215732][  T253]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.215734][  T253]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.215736][  T253]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.215739][  T253]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.215741][  T253]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.215744][  T253]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.215746][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215750][  T253]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.215752][  T253]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.215755][  T253]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.215757][  T253]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.215759][  T253]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.215765][  T253]  ? 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))
[   16.215767][  T253]  ? 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))
[   16.215771][  T253]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.215775][  T253]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.215777][  T253]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.215787][  T253]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.215790][  T253]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.215794][  T253]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   16.215800][  T253]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   16.215802][  T253]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.215804][  T253]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   16.215806][  T253]  ? move_addr_to_kernel (net/socket.c:258)
[   16.215813][  T253]  ___sys_sendmsg (net/socket.c:2767)
[   16.215816][  T253]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.215831][  T253]  __sys_sendmsg (net/socket.c:2799)
[   16.215834][  T253]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.215840][  T253]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.215844][  T253]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.215846][  T253]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.215849][  T253]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.215851][  T253] RIP: 0033:0x7fc34f75954e
[   16.215853][  T253] 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
[   16.215855][  T253] RSP: 002b:00007ffc5bf99e60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.215858][  T253] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc34f75954e
[   16.215859][  T253] RDX: 0000000000000000 RSI: 00007ffc5bf99f10 RDI: 0000000000000005
[   16.215860][  T253] RBP: 00007ffc5bf99e70 R08: 0000000000000000 R09: 0000000000000000
[   16.215861][  T253] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913a33


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