======================================
| [   11.822132][  T280] softirqs last disabled at (12028): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.822135][  T280] Preemption disabled at:
| [   11.822135][  T280] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.822144][  T280] Tainted: [W]=WARN
[   11.822145][  T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.822146][  T280] Call Trace:
[   11.822148][  T280]  <TASK>
[   11.822149][  T280]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.822155][  T280]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.822157][  T280]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.822161][  T280]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.822165][  T280]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.822169][  T280]  __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))
[   11.822171][  T280]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.822178][  T280]  ? 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)
[   11.822180][  T280]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.822184][  T280]  put_chars (drivers/char/virtio_console.c:1176)
[   11.822187][  T280]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.822189][  T280]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.822194][  T280]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.822202][  T280]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.822204][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822207][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.822211][  T280]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.822214][  T280]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.822216][  T280]  ? 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))
[   11.822219][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822221][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.822225][  T280]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.822229][  T280]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.822231][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.822236][  T280]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.822238][  T280]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.822240][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822242][  T280]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   11.822246][  T280]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.822247][  T280]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.822250][  T280]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.822253][  T280]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.822255][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.822256][  T280]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.822261][  T280]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.822264][  T280]  _printk (kernel/printk/printk.c:2504)
[   11.822267][  T280]  ? snapshot_read.cold (user.c:?)
[   11.822271][  T280]  ? br_multicast_flood (??:?)
[   11.822274][  T280]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.822275][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.822276][  T280]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.822281][  T280]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.822285][  T280]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.822287][  T280]  new_nbp (net/bridge/br_if.c:449)
[   11.822291][  T280]  br_add_if (net/bridge/br_if.c:592)
[   11.822293][  T280]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.822297][  T280]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.822302][  T280]  do_set_master (net/core/rtnetlink.c:3071)
[   11.822306][  T280]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.822309][  T280]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.822312][  T280]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.822313][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.822316][  T280]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.822319][  T280]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.822321][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.822323][  T280]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.822325][  T280]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.822328][  T280]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.822329][  T280]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.822330][  T280]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.822332][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.822334][  T280]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.822337][  T280]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.822341][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.822343][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.822346][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822348][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.822349][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822350][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822352][  T280]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.822354][  T280]  ? __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)
[   11.822355][  T280]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.822357][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.822360][  T280]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.822362][  T280]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.822366][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822368][  T280]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.822373][  T280]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.822379][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.822380][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.822385][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.822387][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.822389][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.822391][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.822394][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.822396][  T280]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.822399][  T280]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.822401][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.822405][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.822407][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.822410][  T280]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.822413][  T280]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.822416][  T280]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.822422][  T280]  ? 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))
[   11.822424][  T280]  ? 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))
[   11.822429][  T280]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.822433][  T280]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.822435][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.822439][  T280]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.822443][  T280]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.822447][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.822448][  T280]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.822453][  T280]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.822456][  T280]  ____sys_sendmsg (net/socket.c:2713)
[   11.822458][  T280]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.822461][  T280]  ? sock_write_iter (net/socket.c:1269)
[   11.822462][  T280]  ? move_addr_to_kernel (net/socket.c:258)
[   11.822469][  T280]  ___sys_sendmsg (net/socket.c:2767)
[   11.822472][  T280]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.822487][  T280]  __sys_sendmsg (net/socket.c:2799)
[   11.822490][  T280]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.822496][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.822499][  T280]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.822502][  T280]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.822505][  T280]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.822507][  T280] RIP: 0033:0x7f5aa42f854e
[   11.822510][  T280] 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
[   11.822512][  T280] RSP: 002b:00007ffde54c8700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.822514][  T280] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f5aa42f854e
[   11.822515][  T280] RDX: 0000000000000000 RSI: 00007ffde54c87b0 RDI: 0000000000000005
[   11.822516][  T280] RBP: 00007ffde54c8710 R08: 0000000000000000 R09: 0000000000000000
[   11.822517][  T280] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9172a9
[   11.822518][  T280] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde54c8e70
| [   14.280999][  T342] softirqs last disabled at (14016): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.281001][  T342] Preemption disabled at:
| [   14.281002][  T342] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.281010][  T342] Tainted: [W]=WARN
[   14.281011][  T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.281012][  T342] Call Trace:
[   14.281014][  T342]  <TASK>
[   14.281015][  T342]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.281021][  T342]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.281023][  T342]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.281028][  T342]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.281032][  T342]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.281036][  T342]  __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))
[   14.281038][  T342]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.281045][  T342]  ? 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)
[   14.281048][  T342]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.281052][  T342]  put_chars (drivers/char/virtio_console.c:1176)
[   14.281054][  T342]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.281057][  T342]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.281062][  T342]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.281069][  T342]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.281072][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281075][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.281079][  T342]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.281083][  T342]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.281085][  T342]  ? 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))
[   14.281088][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281090][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.281094][  T342]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.281098][  T342]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.281100][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.281105][  T342]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.281112][  T342]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.281114][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281116][  T342]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   14.281120][  T342]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.281122][  T342]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.281124][  T342]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.281127][  T342]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.281128][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.281130][  T342]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.281133][  T342]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.281134][  T342]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.281136][  T342]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.281139][  T342]  ? ____sys_sendmsg (net/socket.c:2713)
[   14.281140][  T342]  ? ___sys_sendmsg (net/socket.c:2767)
[   14.281144][  T342]  _printk (kernel/printk/printk.c:2504)
[   14.281147][  T342]  ? snapshot_read.cold (user.c:?)
[   14.281151][  T342]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   14.281155][  T342]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   14.281159][  T342]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   14.281162][  T342]  ? netdev_notice (net/core/dev.c:13194)
[   14.281166][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281168][  T342]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   14.281170][  T342]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   14.281172][  T342]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   14.281174][  T342]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   14.281178][  T342]  dev_set_allmulti (net/core/dev_api.c:315)
[   14.281182][  T342]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   14.281188][  T342]  br_del_if (net/bridge/br_if.c:732)
[   14.281190][  T342]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.281194][  T342]  do_set_master (net/core/rtnetlink.c:3055)
[   14.281197][  T342]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.281201][  T342]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.281204][  T342]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.281205][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.281208][  T342]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.281211][  T342]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.281213][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.281215][  T342]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.281217][  T342]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.281220][  T342]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.281221][  T342]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.281222][  T342]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.281224][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.281226][  T342]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   14.281229][  T342]  ? ___sys_sendmsg (net/socket.c:2758)
[   14.281232][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.281234][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.281237][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281238][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.281240][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281241][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281243][  T342]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.281245][  T342]  ? __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)
[   14.281248][  T342]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.281249][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.281253][  T342]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.281254][  T342]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.281259][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281261][  T342]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.281266][  T342]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.281271][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.281273][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.281278][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.281279][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.281282][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.281283][  T342]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.281287][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.281289][  T342]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.281292][  T342]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.281293][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.281298][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.281300][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.281303][  T342]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.281305][  T342]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.281308][  T342]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.281314][  T342]  ? 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))
[   14.281316][  T342]  ? 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))
[   14.281321][  T342]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.281324][  T342]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.281327][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.281331][  T342]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.281335][  T342]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.281339][  T342]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.281340][  T342]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   14.281345][  T342]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.281348][  T342]  ____sys_sendmsg (net/socket.c:2713)
[   14.281350][  T342]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.281353][  T342]  ? sock_write_iter (net/socket.c:1269)
[   14.281354][  T342]  ? move_addr_to_kernel (net/socket.c:258)
[   14.281361][  T342]  ___sys_sendmsg (net/socket.c:2767)
[   14.281364][  T342]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.281379][  T342]  __sys_sendmsg (net/socket.c:2799)
[   14.281382][  T342]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.281388][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.281391][  T342]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.281394][  T342]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.281397][  T342]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.281399][  T342] RIP: 0033:0x7f17657af54e
[   14.281403][  T342] 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
[   14.281405][  T342] RSP: 002b:00007fff81fd5110 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.281407][  T342] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f17657af54e
[   14.281409][  T342] RDX: 0000000000000000 RSI: 00007fff81fd51c0 RDI: 0000000000000005
[   14.281409][  T342] RBP: 00007fff81fd5120 R08: 0000000000000000 R09: 0000000000000000
[   14.281410][  T342] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9172ab
[   14.281411][  T342] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff81fd5880
| [   16.997321][  T426] softirqs last disabled at (17992): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   16.997324][  T426] Preemption disabled at:
| [   16.997324][  T426] vprintk_emit (kernel/printk/printk.c:2471)
| [   16.997333][  T426] Tainted: [W]=WARN
[   16.997334][  T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.997335][  T426] Call Trace:
[   16.997337][  T426]  <TASK>
[   16.997339][  T426]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   16.997344][  T426]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   16.997346][  T426]  __might_resched.cold (kernel/sched/core.c:9234)
[   16.997351][  T426]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   16.997355][  T426]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   16.997359][  T426]  __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))
[   16.997361][  T426]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.997367][  T426]  ? 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)
[   16.997370][  T426]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   16.997374][  T426]  put_chars (drivers/char/virtio_console.c:1176)
[   16.997376][  T426]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   16.997379][  T426]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.997384][  T426]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   16.997392][  T426]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   16.997395][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997397][  T426]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.997401][  T426]  console_emit_next_record (kernel/printk/printk.c:3183)
[   16.997405][  T426]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   16.997407][  T426]  ? 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))
[   16.997410][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997412][  T426]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.997416][  T426]  console_flush_one_record (kernel/printk/printk.c:3268)
[   16.997420][  T426]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   16.997422][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.997427][  T426]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   16.997430][  T426]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   16.997431][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997433][  T426]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   16.997437][  T426]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   16.997438][  T426]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   16.997441][  T426]  vprintk_emit (kernel/printk/printk.c:2479)
[   16.997444][  T426]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   16.997446][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.997447][  T426]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.997450][  T426]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.997451][  T426]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.997453][  T426]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   16.997456][  T426]  ? ____sys_sendmsg (net/socket.c:2713)
[   16.997457][  T426]  ? ___sys_sendmsg (net/socket.c:2767)
[   16.997460][  T426]  _printk (kernel/printk/printk.c:2504)
[   16.997464][  T426]  ? snapshot_read.cold (user.c:?)
[   16.997468][  T426]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   16.997472][  T426]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   16.997476][  T426]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   16.997478][  T426]  ? netdev_notice (net/core/dev.c:13194)
[   16.997483][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997484][  T426]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   16.997487][  T426]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   16.997489][  T426]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   16.997491][  T426]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   16.997495][  T426]  dev_set_allmulti (net/core/dev_api.c:315)
[   16.997499][  T426]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   16.997505][  T426]  br_del_if (net/bridge/br_if.c:732)
[   16.997507][  T426]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   16.997511][  T426]  do_set_master (net/core/rtnetlink.c:3055)
[   16.997514][  T426]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   16.997518][  T426]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   16.997521][  T426]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   16.997523][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   16.997525][  T426]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   16.997529][  T426]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   16.997531][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   16.997532][  T426]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   16.997535][  T426]  ? kasan_save_stack (mm/kasan/common.c:58)
[   16.997537][  T426]  ? kasan_save_stack (mm/kasan/common.c:57)
[   16.997538][  T426]  ? kasan_save_track (mm/kasan/common.c:78)
[   16.997540][  T426]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   16.997542][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.997544][  T426]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   16.997546][  T426]  ? ___sys_sendmsg (net/socket.c:2758)
[   16.997549][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.997551][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.997554][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997556][  T426]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   16.997557][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997558][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997560][  T426]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   16.997562][  T426]  ? __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)
[   16.997565][  T426]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   16.997566][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   16.997570][  T426]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   16.997571][  T426]  ? nla_get_range_signed (lib/nlattr.c:270)
[   16.997576][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997578][  T426]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   16.997583][  T426]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   16.997589][  T426]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.997590][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.997595][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.997597][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.997599][  T426]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.997601][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.997605][  T426]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   16.997607][  T426]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   16.997610][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.997611][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   16.997616][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   16.997617][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.997621][  T426]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   16.997623][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   16.997626][  T426]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   16.997634][  T426]  ? 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))
[   16.997636][  T426]  ? 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))
[   16.997640][  T426]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   16.997644][  T426]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   16.997647][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   16.997651][  T426]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   16.997655][  T426]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   16.997658][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   16.997660][  T426]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   16.997665][  T426]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   16.997668][  T426]  ____sys_sendmsg (net/socket.c:2713)
[   16.997670][  T426]  ? copy_msghdr_from_user (net/socket.c:2650)
[   16.997672][  T426]  ? sock_write_iter (net/socket.c:1269)
[   16.997673][  T426]  ? move_addr_to_kernel (net/socket.c:258)
[   16.997681][  T426]  ___sys_sendmsg (net/socket.c:2767)
[   16.997683][  T426]  ? copy_msghdr_from_user (net/socket.c:2619)
[   16.997698][  T426]  __sys_sendmsg (net/socket.c:2799)
[   16.997701][  T426]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   16.997707][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   16.997710][  T426]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   16.997713][  T426]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   16.997716][  T426]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   16.997718][  T426] RIP: 0033:0x7f3695f7954e
[   16.997722][  T426] 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
[   16.997723][  T426] RSP: 002b:00007ffe6b054270 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   16.997726][  T426] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3695f7954e
[   16.997727][  T426] RDX: 0000000000000000 RSI: 00007ffe6b054320 RDI: 0000000000000005
[   16.997728][  T426] RBP: 00007ffe6b054280 R08: 0000000000000000 R09: 0000000000000000
[   16.997729][  T426] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9172ae
[   16.997730][  T426] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6b0549e0
| [   19.637299][  T504] softirqs last disabled at (14714): dev_mc_unsync (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/netdevice.h:5008 (discriminator 2) net/core/dev_addr_lists.c:1148 (discriminator 2) net/core/dev_addr_lists.c:1142 (discriminator 2))
| [   19.637301][  T504] Preemption disabled at:
| [   19.637302][  T504] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.637310][  T504] Tainted: [W]=WARN
[   19.637311][  T504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.637313][  T504] Call Trace:
[   19.637314][  T504]  <TASK>
[   19.637316][  T504]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.637321][  T504]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.637323][  T504]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.637328][  T504]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.637332][  T504]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.637336][  T504]  __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))
[   19.637338][  T504]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.637344][  T504]  ? 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)
[   19.637347][  T504]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.637350][  T504]  put_chars (drivers/char/virtio_console.c:1176)
[   19.637353][  T504]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.637354][  T504]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   19.637358][  T504]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   19.637362][  T504]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.637366][  T504]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.637368][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637369][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637374][  T504]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.637375][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.637380][  T504]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.637384][  T504]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.637388][  T504]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.637390][  T504]  ? 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))
[   19.637393][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.637396][  T504]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.637400][  T504]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.637404][  T504]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.637406][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637411][  T504]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.637414][  T504]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.637416][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.637418][  T504]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   19.637421][  T504]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.637423][  T504]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.637426][  T504]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.637429][  T504]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.637431][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637435][  T504]  _printk (kernel/printk/printk.c:2504)
[   19.637439][  T504]  ? snapshot_read.cold (user.c:?)
[   19.637442][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.637443][  T504]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.637445][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.637446][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.637447][  T504]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.637451][  T504]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.637455][  T504]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.637457][  T504]  ? netdev_notice (net/core/dev.c:13194)
[   19.637460][  T504]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.637468][  T504]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   19.637472][  T504]  netif_set_promiscuity (net/core/dev.c:9699)
[   19.637476][  T504]  dev_set_promiscuity (net/core/dev_api.c:288)
[   19.637477][  T504]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   19.637481][  T504]  macvlan_stop (drivers/net/macvlan.c:717)
[   19.637484][  T504]  __dev_close_many (net/core/dev.c:1798)
[   19.637488][  T504]  ? net_generic (./include/linux/rcupdate.h:882 ./include/net/netns/generic.h:48) vxlan
[   19.637495][  T504]  ? netif_open (net/core/dev.c:1755)
[   19.637498][  T504]  ? netif_close_many (net/core/dev.c:1824)
[   19.637502][  T504]  netif_close_many (net/core/dev.c:1824)
[   19.637506][  T504]  ? __dev_close_many (net/core/dev.c:1804)
[   19.637509][  T504]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   19.637513][  T504]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   19.637517][  T504]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.637521][  T504]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   19.637522][  T504]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   19.637525][  T504]  ? netdev_upper_dev_unlink (net/core/dev.c:9114)
[   19.637527][  T504]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   19.637532][  T504]  rtnl_dellink (net/core/rtnetlink.c:3652 net/core/rtnetlink.c:3694)
[   19.637534][  T504]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.637536][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637537][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637539][  T504]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.637561][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.637563][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.637566][  T504]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.637568][  T504]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.637570][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637575][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.637577][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.637579][  T504]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.637580][  T504]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.637584][  T504]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.637586][  T504]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.637590][  T504]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.637591][  T504]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.637596][  T504]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.637597][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.637601][  T504]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.637603][  T504]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.637606][  T504]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.637612][  T504]  ? 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))
[   19.637614][  T504]  ? 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))
[   19.637619][  T504]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.637623][  T504]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.637625][  T504]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.637631][  T504]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.637635][  T504]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.637639][  T504]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.637641][  T504]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   19.637646][  T504]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   19.637650][  T504]  ____sys_sendmsg (net/socket.c:2713)
[   19.637652][  T504]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.637654][  T504]  ? sock_write_iter (net/socket.c:1269)
[   19.637656][  T504]  ? move_addr_to_kernel (net/socket.c:258)
[   19.637663][  T504]  ___sys_sendmsg (net/socket.c:2767)
[   19.637666][  T504]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.637682][  T504]  __sys_sendmsg (net/socket.c:2799)
[   19.637685][  T504]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.637691][  T504]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.637694][  T504]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.637696][  T504]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.637700][  T504]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.637702][  T504] RIP: 0033:0x7f36c769454e
[   19.637705][  T504] 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
[   19.637707][  T504] RSP: 002b:00007ffdf8d4cd40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.637709][  T504] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f36c769454e
[   19.637711][  T504] RDX: 0000000000000000 RSI: 00007ffdf8d4cdf0 RDI: 0000000000000005
[   19.637711][  T504] RBP: 00007ffdf8d4cd50 R08: 0000000000000000 R09: 0000000000000000
[   19.637712][  T504] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9172b1
[   19.637713][  T504] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf8d4d4b0
| [   22.356950][  T591] softirqs last disabled at (12744): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.356953][  T591] Preemption disabled at:
| [   22.356953][  T591] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.356962][  T591] Tainted: [W]=WARN
[   22.356962][  T591] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.356964][  T591] Call Trace:
[   22.356965][  T591]  <TASK>
[   22.356967][  T591]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.356973][  T591]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.356974][  T591]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.356979][  T591]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.356983][  T591]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.356987][  T591]  __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))
[   22.356989][  T591]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.356996][  T591]  ? 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)
[   22.356999][  T591]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.357002][  T591]  put_chars (drivers/char/virtio_console.c:1176)
[   22.357005][  T591]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.357008][  T591]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.357013][  T591]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.357021][  T591]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.357024][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357027][  T591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.357031][  T591]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.357035][  T591]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.357037][  T591]  ? 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))
[   22.357040][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357042][  T591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.357046][  T591]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.357050][  T591]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.357053][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.357058][  T591]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.357061][  T591]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.357063][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357064][  T591]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   22.357068][  T591]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.357070][  T591]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.357073][  T591]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.357076][  T591]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.357077][  T591]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.357079][  T591]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.357081][  T591]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.357083][  T591]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.357085][  T591]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.357087][  T591]  ? ____sys_sendmsg (net/socket.c:2713)
[   22.357089][  T591]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.357092][  T591]  _printk (kernel/printk/printk.c:2504)
[   22.357096][  T591]  ? snapshot_read.cold (user.c:?)
[   22.357100][  T591]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.357104][  T591]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.357108][  T591]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.357111][  T591]  ? netdev_notice (net/core/dev.c:13194)
[   22.357115][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357117][  T591]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.357119][  T591]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.357121][  T591]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.357124][  T591]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.357128][  T591]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.357131][  T591]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   22.357138][  T591]  br_del_if (net/bridge/br_if.c:732)
[   22.357140][  T591]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.357143][  T591]  do_set_master (net/core/rtnetlink.c:3055)
[   22.357147][  T591]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.357155][  T591]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.357158][  T591]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.357160][  T591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.357163][  T591]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.357166][  T591]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.357168][  T591]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.357170][  T591]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.357172][  T591]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.357175][  T591]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.357176][  T591]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.357178][  T591]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.357180][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.357182][  T591]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.357184][  T591]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.357187][  T591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.357189][  T591]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.357192][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357194][  T591]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.357195][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357197][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357198][  T591]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.357200][  T591]  ? __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)
[   22.357203][  T591]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.357205][  T591]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.357208][  T591]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.357209][  T591]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.357214][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357216][  T591]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.357222][  T591]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.357227][  T591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.357229][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.357233][  T591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.357235][  T591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.357238][  T591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.357239][  T591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.357243][  T591]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.357245][  T591]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.357248][  T591]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.357250][  T591]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.357254][  T591]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.357256][  T591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.357260][  T591]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.357261][  T591]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.357264][  T591]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.357271][  T591]  ? 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))
[   22.357273][  T591]  ? 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))
[   22.357277][  T591]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.357281][  T591]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.357284][  T591]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.357288][  T591]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.357292][  T591]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.357296][  T591]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.357298][  T591]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.357303][  T591]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.357306][  T591]  ____sys_sendmsg (net/socket.c:2713)
[   22.357308][  T591]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.357310][  T591]  ? sock_write_iter (net/socket.c:1269)
[   22.357312][  T591]  ? move_addr_to_kernel (net/socket.c:258)
[   22.357319][  T591]  ___sys_sendmsg (net/socket.c:2767)
[   22.357322][  T591]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.357338][  T591]  __sys_sendmsg (net/socket.c:2799)
[   22.357341][  T591]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.357347][  T591]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.357350][  T591]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.357353][  T591]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.357356][  T591]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.357358][  T591] RIP: 0033:0x7f12c6de554e
[   22.357362][  T591] 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
[   22.357364][  T591] RSP: 002b:00007fffe51ca930 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.357366][  T591] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f12c6de554e
[   22.357368][  T591] RDX: 0000000000000000 RSI: 00007fffe51ca9e0 RDI: 0000000000000005
[   22.357369][  T591] RBP: 00007fffe51ca940 R08: 0000000000000000 R09: 0000000000000000
[   22.357369][  T591] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9172b3


Finger prints:
dev_mc_unsync:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars