======================================
| [   12.163711][  T280] softirqs last disabled at (12862): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.163713][  T280] Preemption disabled at:
| [   12.163714][  T280] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.163722][  T280] Tainted: [W]=WARN
[   12.163723][  T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.163725][  T280] Call Trace:
[   12.163726][  T280]  <TASK>
[   12.163728][  T280]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.163733][  T280]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.163735][  T280]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.163740][  T280]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.163744][  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)
[   12.163748][  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))
[   12.163750][  T280]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.163756][  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)
[   12.163759][  T280]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.163762][  T280]  put_chars (drivers/char/virtio_console.c:1176)
[   12.163765][  T280]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.163767][  T280]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.163773][  T280]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.163780][  T280]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.163783][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163785][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.163789][  T280]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.163793][  T280]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.163795][  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))
[   12.163798][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163800][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.163804][  T280]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.163808][  T280]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.163810][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.163815][  T280]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.163818][  T280]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.163820][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163821][  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)
[   12.163825][  T280]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.163827][  T280]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.163829][  T280]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.163832][  T280]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.163834][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.163836][  T280]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   12.163840][  T280]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.163843][  T280]  _printk (kernel/printk/printk.c:2504)
[   12.163846][  T280]  ? snapshot_read.cold (user.c:?)
[   12.163850][  T280]  ? br_multicast_flood (??:?)
[   12.163853][  T280]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.163855][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.163856][  T280]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.163860][  T280]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   12.163865][  T280]  br_init_port (net/bridge/br_stp_if.c:39)
[   12.163867][  T280]  new_nbp (net/bridge/br_if.c:449)
[   12.163871][  T280]  br_add_if (net/bridge/br_if.c:592)
[   12.163873][  T280]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.163877][  T280]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.163882][  T280]  do_set_master (net/core/rtnetlink.c:3071)
[   12.163885][  T280]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.163889][  T280]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.163892][  T280]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.163893][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.163896][  T280]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.163899][  T280]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.163902][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.163903][  T280]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.163906][  T280]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.163908][  T280]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.163909][  T280]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.163910][  T280]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.163912][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.163914][  T280]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.163917][  T280]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.163921][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.163923][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.163925][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163927][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.163928][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163929][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163931][  T280]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.163933][  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)
[   12.163935][  T280]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.163937][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.163940][  T280]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.163941][  T280]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.163946][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.163948][  T280]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.163953][  T280]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.163959][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.163960][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.163965][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.163967][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.163969][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.163971][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.163974][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.163976][  T280]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.163979][  T280]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.163981][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.163985][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.163987][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.163990][  T280]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.163993][  T280]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.163996][  T280]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.164003][  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))
[   12.164005][  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))
[   12.164009][  T280]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.164013][  T280]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.164016][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.164020][  T280]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.164024][  T280]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.164027][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.164029][  T280]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.164034][  T280]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.164037][  T280]  ____sys_sendmsg (net/socket.c:2713)
[   12.164039][  T280]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.164041][  T280]  ? sock_write_iter (net/socket.c:1269)
[   12.164043][  T280]  ? move_addr_to_kernel (net/socket.c:258)
[   12.164050][  T280]  ___sys_sendmsg (net/socket.c:2767)
[   12.164052][  T280]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.164068][  T280]  __sys_sendmsg (net/socket.c:2799)
[   12.164070][  T280]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.164076][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.164079][  T280]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.164082][  T280]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.164085][  T280]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.164087][  T280] RIP: 0033:0x7fc80771454e
[   12.164090][  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
[   12.164092][  T280] RSP: 002b:00007ffeed618f10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.164095][  T280] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc80771454e
[   12.164096][  T280] RDX: 0000000000000000 RSI: 00007ffeed618fc0 RDI: 0000000000000005
[   12.164097][  T280] RBP: 00007ffeed618f20 R08: 0000000000000000 R09: 0000000000000000
[   12.164098][  T280] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f529
[   12.164099][  T280] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeed619680
| [   14.623593][  T343] softirqs last disabled at (15692): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.623596][  T343] Preemption disabled at:
| [   14.623596][  T343] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.623605][  T343] Tainted: [W]=WARN
[   14.623606][  T343] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.623607][  T343] Call Trace:
[   14.623609][  T343]  <TASK>
[   14.623610][  T343]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.623616][  T343]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.623618][  T343]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.623622][  T343]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.623626][  T343]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.623631][  T343]  __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))
[   14.623633][  T343]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.623639][  T343]  ? 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)
[   14.623642][  T343]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.623645][  T343]  put_chars (drivers/char/virtio_console.c:1176)
[   14.623648][  T343]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.623650][  T343]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.623656][  T343]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.623663][  T343]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.623666][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623669][  T343]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.623672][  T343]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.623676][  T343]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.623678][  T343]  ? 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))
[   14.623682][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623683][  T343]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.623687][  T343]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.623691][  T343]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.623693][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.623698][  T343]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.623701][  T343]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.623703][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623705][  T343]  ? 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)
[   14.623711][  T343]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.623712][  T343]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.623715][  T343]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.623719][  T343]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.623720][  T343]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.623722][  T343]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.623725][  T343]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.623726][  T343]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.623728][  T343]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.623730][  T343]  ? ____sys_sendmsg (net/socket.c:2713)
[   14.623732][  T343]  ? ___sys_sendmsg (net/socket.c:2767)
[   14.623735][  T343]  _printk (kernel/printk/printk.c:2504)
[   14.623739][  T343]  ? snapshot_read.cold (user.c:?)
[   14.623743][  T343]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   14.623747][  T343]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   14.623751][  T343]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   14.623754][  T343]  ? netdev_notice (net/core/dev.c:13194)
[   14.623758][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623760][  T343]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   14.623762][  T343]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   14.623764][  T343]  ? 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)
[   14.623767][  T343]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   14.623770][  T343]  dev_set_allmulti (net/core/dev_api.c:315)
[   14.623774][  T343]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   14.623781][  T343]  br_del_if (net/bridge/br_if.c:732)
[   14.623782][  T343]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.623786][  T343]  do_set_master (net/core/rtnetlink.c:3055)
[   14.623789][  T343]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.623793][  T343]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.623796][  T343]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.623798][  T343]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.623800][  T343]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.623804][  T343]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.623806][  T343]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.623808][  T343]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.623810][  T343]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.623813][  T343]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.623814][  T343]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.623815][  T343]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.623817][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.623819][  T343]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   14.623822][  T343]  ? ___sys_sendmsg (net/socket.c:2758)
[   14.623825][  T343]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.623827][  T343]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.623829][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623831][  T343]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.623833][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623834][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623835][  T343]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.623838][  T343]  ? __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)
[   14.623840][  T343]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.623842][  T343]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.623845][  T343]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.623846][  T343]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.623851][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623853][  T343]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.623859][  T343]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.623864][  T343]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.623866][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.623870][  T343]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.623872][  T343]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.623874][  T343]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.623876][  T343]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.623880][  T343]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.623882][  T343]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.623885][  T343]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.623886][  T343]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.623891][  T343]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.623892][  T343]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.623896][  T343]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.623898][  T343]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.623901][  T343]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.623907][  T343]  ? 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))
[   14.623909][  T343]  ? 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))
[   14.623914][  T343]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.623917][  T343]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.623920][  T343]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.623924][  T343]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.623928][  T343]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.623932][  T343]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.623933][  T343]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   14.623939][  T343]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.623941][  T343]  ____sys_sendmsg (net/socket.c:2713)
[   14.623943][  T343]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.623946][  T343]  ? sock_write_iter (net/socket.c:1269)
[   14.623947][  T343]  ? move_addr_to_kernel (net/socket.c:258)
[   14.623955][  T343]  ___sys_sendmsg (net/socket.c:2767)
[   14.623957][  T343]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.623973][  T343]  __sys_sendmsg (net/socket.c:2799)
[   14.623976][  T343]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.623982][  T343]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.623985][  T343]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.623988][  T343]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.623991][  T343]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.623993][  T343] RIP: 0033:0x7fee7a67254e
[   14.623997][  T343] 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
[   14.623999][  T343] RSP: 002b:00007ffed7b24830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.624001][  T343] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fee7a67254e
[   14.624003][  T343] RDX: 0000000000000000 RSI: 00007ffed7b248e0 RDI: 0000000000000005
[   14.624003][  T343] RBP: 00007ffed7b24840 R08: 0000000000000000 R09: 0000000000000000
[   14.624004][  T343] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f52b
[   14.624005][  T343] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffed7b24fa0
| [   17.358813][  T426] softirqs last disabled at (13031): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   17.358816][  T426] Preemption disabled at:
| [   17.358816][  T426] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.358824][  T426] Tainted: [W]=WARN
[   17.358826][  T426] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.358827][  T426] Call Trace:
[   17.358829][  T426]  <TASK>
[   17.358830][  T426]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.358836][  T426]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.358837][  T426]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.358842][  T426]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.358846][  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)
[   17.358851][  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))
[   17.358853][  T426]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.358859][  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)
[   17.358862][  T426]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.358865][  T426]  put_chars (drivers/char/virtio_console.c:1176)
[   17.358868][  T426]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.358870][  T426]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.358876][  T426]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.358883][  T426]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.358886][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.358889][  T426]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.358893][  T426]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.358897][  T426]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.358898][  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))
[   17.358902][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.358903][  T426]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.358907][  T426]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.358911][  T426]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.358913][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.358919][  T426]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.358921][  T426]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.358923][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.358925][  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)
[   17.358929][  T426]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.358930][  T426]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.358933][  T426]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.358936][  T426]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.358938][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.358939][  T426]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.358942][  T426]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.358944][  T426]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.358946][  T426]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   17.358949][  T426]  ? ____sys_sendmsg (net/socket.c:2713)
[   17.358950][  T426]  ? ___sys_sendmsg (net/socket.c:2767)
[   17.358954][  T426]  _printk (kernel/printk/printk.c:2504)
[   17.358957][  T426]  ? snapshot_read.cold (user.c:?)
[   17.358962][  T426]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   17.358965][  T426]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   17.358969][  T426]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   17.358972][  T426]  ? netdev_notice (net/core/dev.c:13194)
[   17.358977][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.358978][  T426]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   17.358981][  T426]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   17.358983][  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)
[   17.358985][  T426]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   17.358989][  T426]  dev_set_allmulti (net/core/dev_api.c:315)
[   17.358993][  T426]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   17.358999][  T426]  br_del_if (net/bridge/br_if.c:732)
[   17.359001][  T426]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.359005][  T426]  do_set_master (net/core/rtnetlink.c:3055)
[   17.359008][  T426]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.359012][  T426]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.359015][  T426]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.359017][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.359019][  T426]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.359023][  T426]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.359025][  T426]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.359027][  T426]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.359029][  T426]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.359031][  T426]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.359032][  T426]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.359034][  T426]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.359036][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.359038][  T426]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   17.359040][  T426]  ? ___sys_sendmsg (net/socket.c:2758)
[   17.359043][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.359045][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.359048][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.359050][  T426]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.359051][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.359052][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.359054][  T426]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.359056][  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)
[   17.359059][  T426]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.359061][  T426]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.359064][  T426]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.359065][  T426]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.359070][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.359072][  T426]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.359078][  T426]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.359083][  T426]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.359085][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.359089][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.359091][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.359094][  T426]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.359095][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.359099][  T426]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.359101][  T426]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.359104][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.359106][  T426]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.359110][  T426]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.359112][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.359116][  T426]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.359118][  T426]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.359120][  T426]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.359127][  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))
[   17.359129][  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))
[   17.359134][  T426]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.359138][  T426]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.359140][  T426]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.359144][  T426]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.359148][  T426]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.359152][  T426]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.359153][  T426]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   17.359159][  T426]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   17.359161][  T426]  ____sys_sendmsg (net/socket.c:2713)
[   17.359163][  T426]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.359166][  T426]  ? sock_write_iter (net/socket.c:1269)
[   17.359167][  T426]  ? move_addr_to_kernel (net/socket.c:258)
[   17.359175][  T426]  ___sys_sendmsg (net/socket.c:2767)
[   17.359177][  T426]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.359193][  T426]  __sys_sendmsg (net/socket.c:2799)
[   17.359196][  T426]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.359202][  T426]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.359205][  T426]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.359208][  T426]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.359211][  T426]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.359213][  T426] RIP: 0033:0x7f2fb34b954e
[   17.359217][  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
[   17.359223][  T426] RSP: 002b:00007ffda738e8a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.359226][  T426] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2fb34b954e
[   17.359227][  T426] RDX: 0000000000000000 RSI: 00007ffda738e950 RDI: 0000000000000005
[   17.359228][  T426] RBP: 00007ffda738e8b0 R08: 0000000000000000 R09: 0000000000000000
[   17.359229][  T426] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f52e
[   17.359230][  T426] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffda738f010
| [   20.032476][  T505] softirqs last disabled at (15400): 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))
| [   20.032479][  T505] Preemption disabled at:
| [   20.032479][  T505] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.032488][  T505] Tainted: [W]=WARN
[   20.032489][  T505] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.032490][  T505] Call Trace:
[   20.032492][  T505]  <TASK>
[   20.032494][  T505]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.032499][  T505]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.032501][  T505]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.032506][  T505]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.032510][  T505]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.032514][  T505]  __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))
[   20.032516][  T505]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.032522][  T505]  ? 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)
[   20.032525][  T505]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.032528][  T505]  put_chars (drivers/char/virtio_console.c:1176)
[   20.032531][  T505]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.032532][  T505]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   20.032536][  T505]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   20.032540][  T505]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.032544][  T505]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   20.032546][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032547][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032552][  T505]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.032554][  T505]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.032558][  T505]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.032562][  T505]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.032566][  T505]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.032568][  T505]  ? 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))
[   20.032571][  T505]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.032573][  T505]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.032577][  T505]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.032582][  T505]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.032583][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032589][  T505]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.032592][  T505]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.032593][  T505]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.032595][  T505]  ? 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)
[   20.032599][  T505]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.032600][  T505]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.032603][  T505]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.032606][  T505]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.032608][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032613][  T505]  _printk (kernel/printk/printk.c:2504)
[   20.032616][  T505]  ? snapshot_read.cold (user.c:?)
[   20.032619][  T505]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.032621][  T505]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.032622][  T505]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.032623][  T505]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.032624][  T505]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   20.032628][  T505]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   20.032632][  T505]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   20.032635][  T505]  ? netdev_notice (net/core/dev.c:13194)
[   20.032637][  T505]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   20.032646][  T505]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   20.032649][  T505]  netif_set_promiscuity (net/core/dev.c:9699)
[   20.032653][  T505]  dev_set_promiscuity (net/core/dev_api.c:288)
[   20.032655][  T505]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   20.032658][  T505]  macvlan_stop (drivers/net/macvlan.c:717)
[   20.032661][  T505]  __dev_close_many (net/core/dev.c:1798)
[   20.032665][  T505]  ? net_generic (./include/linux/rcupdate.h:882 ./include/net/netns/generic.h:48) vxlan
[   20.032672][  T505]  ? netif_open (net/core/dev.c:1755)
[   20.032675][  T505]  ? netif_close_many (net/core/dev.c:1824)
[   20.032679][  T505]  netif_close_many (net/core/dev.c:1824)
[   20.032683][  T505]  ? __dev_close_many (net/core/dev.c:1804)
[   20.032686][  T505]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   20.032690][  T505]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   20.032694][  T505]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.032698][  T505]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   20.032699][  T505]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   20.032702][  T505]  ? netdev_upper_dev_unlink (net/core/dev.c:9114)
[   20.032705][  T505]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   20.032711][  T505]  rtnl_dellink (net/core/rtnetlink.c:3652 net/core/rtnetlink.c:3694)
[   20.032712][  T505]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   20.032714][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032716][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032718][  T505]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   20.032739][  T505]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.032741][  T505]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.032744][  T505]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.032746][  T505]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   20.032748][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032753][  T505]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.032754][  T505]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.032756][  T505]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   20.032758][  T505]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.032762][  T505]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   20.032764][  T505]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   20.032767][  T505]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.032769][  T505]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.032773][  T505]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   20.032775][  T505]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.032778][  T505]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   20.032780][  T505]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   20.032783][  T505]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   20.032790][  T505]  ? 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))
[   20.032792][  T505]  ? 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))
[   20.032796][  T505]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   20.032800][  T505]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   20.032803][  T505]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.032807][  T505]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   20.032811][  T505]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   20.032814][  T505]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   20.032816][  T505]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   20.032821][  T505]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   20.032825][  T505]  ____sys_sendmsg (net/socket.c:2713)
[   20.032827][  T505]  ? copy_msghdr_from_user (net/socket.c:2650)
[   20.032830][  T505]  ? sock_write_iter (net/socket.c:1269)
[   20.032831][  T505]  ? move_addr_to_kernel (net/socket.c:258)
[   20.032839][  T505]  ___sys_sendmsg (net/socket.c:2767)
[   20.032841][  T505]  ? copy_msghdr_from_user (net/socket.c:2619)
[   20.032857][  T505]  __sys_sendmsg (net/socket.c:2799)
[   20.032860][  T505]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   20.032866][  T505]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.032869][  T505]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.032872][  T505]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.032875][  T505]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.032878][  T505] RIP: 0033:0x7f8fbab7454e
[   20.032881][  T505] 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
[   20.032883][  T505] RSP: 002b:00007ffce9056e10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   20.032885][  T505] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8fbab7454e
[   20.032887][  T505] RDX: 0000000000000000 RSI: 00007ffce9056ec0 RDI: 0000000000000005
[   20.032887][  T505] RBP: 00007ffce9056e20 R08: 0000000000000000 R09: 0000000000000000
[   20.032888][  T505] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f531
[   20.032889][  T505] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce9057580
| [   22.778220][  T592] softirqs last disabled at (10887): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   22.778223][  T592] Preemption disabled at:
| [   22.778223][  T592] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.778232][  T592] Tainted: [W]=WARN
[   22.778233][  T592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.778234][  T592] Call Trace:
[   22.778236][  T592]  <TASK>
[   22.778238][  T592]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.778243][  T592]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.778245][  T592]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.778250][  T592]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.778258][  T592]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.778262][  T592]  __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))
[   22.778264][  T592]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.778271][  T592]  ? 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)
[   22.778273][  T592]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.778276][  T592]  put_chars (drivers/char/virtio_console.c:1176)
[   22.778279][  T592]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.778281][  T592]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.778286][  T592]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.778294][  T592]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.778297][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778299][  T592]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.778303][  T592]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.778307][  T592]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.778309][  T592]  ? 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))
[   22.778312][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778313][  T592]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.778317][  T592]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.778321][  T592]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.778323][  T592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.778328][  T592]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.778331][  T592]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.778333][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778335][  T592]  ? 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)
[   22.778338][  T592]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.778340][  T592]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.778343][  T592]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.778346][  T592]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.778347][  T592]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.778349][  T592]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.778352][  T592]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.778353][  T592]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.778355][  T592]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.778358][  T592]  ? ____sys_sendmsg (net/socket.c:2713)
[   22.778359][  T592]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.778363][  T592]  _printk (kernel/printk/printk.c:2504)
[   22.778366][  T592]  ? snapshot_read.cold (user.c:?)
[   22.778370][  T592]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.778374][  T592]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.778378][  T592]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.778381][  T592]  ? netdev_notice (net/core/dev.c:13194)
[   22.778385][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778386][  T592]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.778389][  T592]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.778391][  T592]  ? 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)
[   22.778393][  T592]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.778397][  T592]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.778401][  T592]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   22.778407][  T592]  br_del_if (net/bridge/br_if.c:732)
[   22.778408][  T592]  ? do_set_master (net/core/rtnetlink.c:3053)
[   22.778410][  T592]  do_set_master (net/core/rtnetlink.c:3055)
[   22.778414][  T592]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.778417][  T592]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.778421][  T592]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.778422][  T592]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.778425][  T592]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.778428][  T592]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.778430][  T592]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.778432][  T592]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.778434][  T592]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.778436][  T592]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.778438][  T592]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.778439][  T592]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.778441][  T592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.778443][  T592]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.778445][  T592]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.778448][  T592]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.778450][  T592]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.778453][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778454][  T592]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.778456][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778457][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778459][  T592]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.778461][  T592]  ? __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)
[   22.778463][  T592]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.778465][  T592]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.778468][  T592]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.778470][  T592]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.778474][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778477][  T592]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.778482][  T592]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.778487][  T592]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.778489][  T592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.778493][  T592]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.778495][  T592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.778497][  T592]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.778499][  T592]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.778502][  T592]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.778504][  T592]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.778507][  T592]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.778508][  T592]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.778513][  T592]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.778515][  T592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.778518][  T592]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.778520][  T592]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.778523][  T592]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.778529][  T592]  ? 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))
[   22.778531][  T592]  ? 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))
[   22.778535][  T592]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.778539][  T592]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.778542][  T592]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.778546][  T592]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.778550][  T592]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.778553][  T592]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.778555][  T592]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.778560][  T592]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.778563][  T592]  ____sys_sendmsg (net/socket.c:2713)
[   22.778565][  T592]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.778567][  T592]  ? sock_write_iter (net/socket.c:1269)
[   22.778568][  T592]  ? move_addr_to_kernel (net/socket.c:258)
[   22.778576][  T592]  ___sys_sendmsg (net/socket.c:2767)
[   22.778578][  T592]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.778594][  T592]  __sys_sendmsg (net/socket.c:2799)
[   22.778596][  T592]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.778602][  T592]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.778605][  T592]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.778608][  T592]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.778611][  T592]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.778613][  T592] RIP: 0033:0x7fc59e29b54e
[   22.778617][  T592] 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
[   22.778619][  T592] RSP: 002b:00007ffdbe6f4b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.778621][  T592] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc59e29b54e
[   22.778623][  T592] RDX: 0000000000000000 RSI: 00007ffdbe6f4c20 RDI: 0000000000000005
[   22.778624][  T592] RBP: 00007ffdbe6f4b80 R08: 0000000000000000 R09: 0000000000000000
[   22.778624][  T592] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f534


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