======================================
| [   11.959581][  T280] softirqs last disabled at (14038): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.959583][  T280] Preemption disabled at:
| [   11.959584][  T280] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.959592][  T280] Tainted: [W]=WARN
[   11.959593][  T280] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.959595][  T280] Call Trace:
[   11.959597][  T280]  <TASK>
[   11.959598][  T280]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.959604][  T280]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.959605][  T280]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.959610][  T280]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.959614][  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)
[   11.959619][  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))
[   11.959621][  T280]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.959627][  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)
[   11.959630][  T280]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.959633][  T280]  put_chars (drivers/char/virtio_console.c:1176)
[   11.959636][  T280]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.959638][  T280]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.959644][  T280]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.959652][  T280]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.959654][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959657][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.959661][  T280]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.959665][  T280]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.959666][  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))
[   11.959670][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959671][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.959675][  T280]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.959679][  T280]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.959681][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.959687][  T280]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.959689][  T280]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.959691][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959693][  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)
[   11.959696][  T280]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.959698][  T280]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.959701][  T280]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.959704][  T280]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.959706][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.959707][  T280]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.959711][  T280]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.959715][  T280]  _printk (kernel/printk/printk.c:2504)
[   11.959718][  T280]  ? snapshot_read.cold (user.c:?)
[   11.959722][  T280]  ? br_multicast_flood (??:?)
[   11.959725][  T280]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.959726][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.959727][  T280]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.959732][  T280]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   11.959736][  T280]  br_init_port (net/bridge/br_stp_if.c:39)
[   11.959738][  T280]  new_nbp (net/bridge/br_if.c:449)
[   11.959742][  T280]  br_add_if (net/bridge/br_if.c:592)
[   11.959745][  T280]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.959748][  T280]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.959753][  T280]  do_set_master (net/core/rtnetlink.c:3071)
[   11.959757][  T280]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.959760][  T280]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.959763][  T280]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.959765][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.959767][  T280]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.959770][  T280]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.959772][  T280]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.959774][  T280]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.959777][  T280]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.959779][  T280]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.959780][  T280]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.959781][  T280]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.959784][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.959786][  T280]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.959788][  T280]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.959792][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.959794][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.959797][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959798][  T280]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.959800][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959801][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959803][  T280]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.959805][  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)
[   11.959806][  T280]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.959808][  T280]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.959811][  T280]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.959813][  T280]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.959817][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959820][  T280]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.959825][  T280]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.959830][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.959832][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.959837][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.959839][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.959841][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.959843][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.959846][  T280]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.959848][  T280]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.959851][  T280]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.959853][  T280]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.959857][  T280]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.959859][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.959862][  T280]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.959865][  T280]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.959868][  T280]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.959875][  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))
[   11.959877][  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))
[   11.959881][  T280]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.959885][  T280]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.959888][  T280]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.959892][  T280]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.959896][  T280]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.959900][  T280]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.959901][  T280]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.959906][  T280]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.959909][  T280]  ____sys_sendmsg (net/socket.c:2713)
[   11.959911][  T280]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.959914][  T280]  ? sock_write_iter (net/socket.c:1269)
[   11.959915][  T280]  ? move_addr_to_kernel (net/socket.c:258)
[   11.959923][  T280]  ___sys_sendmsg (net/socket.c:2767)
[   11.959925][  T280]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.959945][  T280]  __sys_sendmsg (net/socket.c:2799)
[   11.959948][  T280]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.959954][  T280]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.959957][  T280]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.959960][  T280]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.959963][  T280]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.959965][  T280] RIP: 0033:0x7f4a2ff3054e
[   11.959969][  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
[   11.959971][  T280] RSP: 002b:00007ffc153b0bf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.959973][  T280] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4a2ff3054e
[   11.959974][  T280] RDX: 0000000000000000 RSI: 00007ffc153b0ca0 RDI: 0000000000000005
[   11.959975][  T280] RBP: 00007ffc153b0c00 R08: 0000000000000000 R09: 0000000000000000
[   11.959976][  T280] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911dc2
[   11.959977][  T280] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc153b1360
| [   14.429796][  T342] softirqs last disabled at (20916): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   14.429798][  T342] Preemption disabled at:
| [   14.429799][  T342] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.429807][  T342] Tainted: [W]=WARN
[   14.429808][  T342] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.429810][  T342] Call Trace:
[   14.429812][  T342]  <TASK>
[   14.429813][  T342]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.429819][  T342]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.429820][  T342]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.429825][  T342]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.429829][  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)
[   14.429834][  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))
[   14.429835][  T342]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.429842][  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)
[   14.429845][  T342]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.429849][  T342]  put_chars (drivers/char/virtio_console.c:1176)
[   14.429851][  T342]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.429854][  T342]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.429859][  T342]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.429866][  T342]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.429869][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429872][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.429876][  T342]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.429880][  T342]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.429882][  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))
[   14.429885][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429887][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.429891][  T342]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.429895][  T342]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.429897][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.429902][  T342]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.429905][  T342]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.429907][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429909][  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)
[   14.429912][  T342]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.429914][  T342]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.429917][  T342]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.429920][  T342]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.429921][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.429922][  T342]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.429925][  T342]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.429927][  T342]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.429929][  T342]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.429931][  T342]  ? ____sys_sendmsg (net/socket.c:2713)
[   14.429932][  T342]  ? ___sys_sendmsg (net/socket.c:2767)
[   14.429936][  T342]  _printk (kernel/printk/printk.c:2504)
[   14.429939][  T342]  ? snapshot_read.cold (user.c:?)
[   14.429943][  T342]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   14.429947][  T342]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   14.429951][  T342]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   14.429954][  T342]  ? netdev_notice (net/core/dev.c:13194)
[   14.429963][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.429965][  T342]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   14.429967][  T342]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   14.429969][  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)
[   14.429971][  T342]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   14.429975][  T342]  dev_set_allmulti (net/core/dev_api.c:315)
[   14.429979][  T342]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   14.429985][  T342]  br_del_if (net/bridge/br_if.c:732)
[   14.429987][  T342]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   14.429992][  T342]  do_set_master (net/core/rtnetlink.c:3055)
[   14.429995][  T342]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.429998][  T342]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.430002][  T342]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.430003][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.430006][  T342]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.430009][  T342]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.430011][  T342]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.430013][  T342]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.430016][  T342]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.430018][  T342]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.430019][  T342]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.430020][  T342]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.430023][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.430024][  T342]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   14.430027][  T342]  ? ___sys_sendmsg (net/socket.c:2758)
[   14.430030][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.430032][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.430034][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.430036][  T342]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.430038][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.430039][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.430040][  T342]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.430042][  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)
[   14.430045][  T342]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.430047][  T342]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.430050][  T342]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.430051][  T342]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.430058][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.430060][  T342]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.430065][  T342]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.430070][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.430072][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.430076][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.430078][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.430080][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.430082][  T342]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.430086][  T342]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.430088][  T342]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.430091][  T342]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.430092][  T342]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.430097][  T342]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.430098][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.430102][  T342]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.430104][  T342]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.430106][  T342]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.430113][  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))
[   14.430115][  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))
[   14.430119][  T342]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.430123][  T342]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.430126][  T342]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.430130][  T342]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.430134][  T342]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.430137][  T342]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.430139][  T342]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   14.430144][  T342]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.430147][  T342]  ____sys_sendmsg (net/socket.c:2713)
[   14.430149][  T342]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.430151][  T342]  ? sock_write_iter (net/socket.c:1269)
[   14.430153][  T342]  ? move_addr_to_kernel (net/socket.c:258)
[   14.430160][  T342]  ___sys_sendmsg (net/socket.c:2767)
[   14.430163][  T342]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.430178][  T342]  __sys_sendmsg (net/socket.c:2799)
[   14.430181][  T342]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.430187][  T342]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.430190][  T342]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.430192][  T342]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.430195][  T342]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.430197][  T342] RIP: 0033:0x7f627bfd254e
[   14.430201][  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
[   14.430203][  T342] RSP: 002b:00007fffc4f54a60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.430205][  T342] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f627bfd254e
[   14.430207][  T342] RDX: 0000000000000000 RSI: 00007fffc4f54b10 RDI: 0000000000000005
[   14.430207][  T342] RBP: 00007fffc4f54a70 R08: 0000000000000000 R09: 0000000000000000
[   14.430208][  T342] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911dc4
[   14.430209][  T342] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffc4f551d0
| [   17.178817][  T427] softirqs last disabled at (10844): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   17.178819][  T427] Preemption disabled at:
| [   17.178820][  T427] vprintk_emit (kernel/printk/printk.c:2471)
| [   17.178828][  T427] Tainted: [W]=WARN
[   17.178829][  T427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.178830][  T427] Call Trace:
[   17.178832][  T427]  <TASK>
[   17.178834][  T427]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.178840][  T427]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   17.178841][  T427]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.178846][  T427]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.178850][  T427]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.178854][  T427]  __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))
[   17.178856][  T427]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.178863][  T427]  ? 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)
[   17.178865][  T427]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.178869][  T427]  put_chars (drivers/char/virtio_console.c:1176)
[   17.178872][  T427]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.178874][  T427]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.178880][  T427]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.178887][  T427]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.178890][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178893][  T427]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.178897][  T427]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.178901][  T427]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.178903][  T427]  ? 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))
[   17.178906][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178907][  T427]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.178911][  T427]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.178915][  T427]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.178917][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.178923][  T427]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.178926][  T427]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.178927][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178929][  T427]  ? 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)
[   17.178933][  T427]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.178934][  T427]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.178937][  T427]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.178940][  T427]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.178941][  T427]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.178943][  T427]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.178946][  T427]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.178947][  T427]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.178949][  T427]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   17.178952][  T427]  ? ____sys_sendmsg (net/socket.c:2713)
[   17.178953][  T427]  ? ___sys_sendmsg (net/socket.c:2767)
[   17.178956][  T427]  _printk (kernel/printk/printk.c:2504)
[   17.178960][  T427]  ? snapshot_read.cold (user.c:?)
[   17.178964][  T427]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   17.178968][  T427]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   17.178977][  T427]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   17.178979][  T427]  ? netdev_notice (net/core/dev.c:13194)
[   17.178984][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.178986][  T427]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   17.178988][  T427]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   17.178990][  T427]  ? 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)
[   17.178992][  T427]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   17.178997][  T427]  dev_set_allmulti (net/core/dev_api.c:315)
[   17.179000][  T427]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   17.179006][  T427]  br_del_if (net/bridge/br_if.c:732)
[   17.179008][  T427]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   17.179012][  T427]  do_set_master (net/core/rtnetlink.c:3055)
[   17.179015][  T427]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   17.179019][  T427]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   17.179022][  T427]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   17.179024][  T427]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   17.179026][  T427]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   17.179030][  T427]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   17.179032][  T427]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.179034][  T427]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   17.179036][  T427]  ? kasan_save_stack (mm/kasan/common.c:58)
[   17.179039][  T427]  ? kasan_save_stack (mm/kasan/common.c:57)
[   17.179040][  T427]  ? kasan_save_track (mm/kasan/common.c:78)
[   17.179041][  T427]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   17.179044][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.179046][  T427]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   17.179048][  T427]  ? ___sys_sendmsg (net/socket.c:2758)
[   17.179051][  T427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.179055][  T427]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.179057][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.179059][  T427]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.179061][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.179062][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.179064][  T427]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   17.179066][  T427]  ? __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)
[   17.179069][  T427]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   17.179071][  T427]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   17.179074][  T427]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   17.179075][  T427]  ? nla_get_range_signed (lib/nlattr.c:270)
[   17.179080][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.179082][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   17.179087][  T427]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   17.179093][  T427]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.179095][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.179099][  T427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.179101][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.179103][  T427]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.179105][  T427]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.179109][  T427]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   17.179111][  T427]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   17.179114][  T427]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.179115][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.179120][  T427]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.179121][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.179125][  T427]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   17.179127][  T427]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   17.179130][  T427]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   17.179136][  T427]  ? 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))
[   17.179138][  T427]  ? 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))
[   17.179143][  T427]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   17.179146][  T427]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   17.179149][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   17.179153][  T427]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   17.179157][  T427]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   17.179161][  T427]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.179162][  T427]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   17.179168][  T427]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   17.179171][  T427]  ____sys_sendmsg (net/socket.c:2713)
[   17.179173][  T427]  ? copy_msghdr_from_user (net/socket.c:2650)
[   17.179175][  T427]  ? sock_write_iter (net/socket.c:1269)
[   17.179176][  T427]  ? move_addr_to_kernel (net/socket.c:258)
[   17.179184][  T427]  ___sys_sendmsg (net/socket.c:2767)
[   17.179187][  T427]  ? copy_msghdr_from_user (net/socket.c:2619)
[   17.179202][  T427]  __sys_sendmsg (net/socket.c:2799)
[   17.179205][  T427]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   17.179211][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.179214][  T427]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   17.179217][  T427]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   17.179220][  T427]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   17.179223][  T427] RIP: 0033:0x7f272e6c854e
[   17.179226][  T427] 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
[   17.179228][  T427] RSP: 002b:00007ffcf96353d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   17.179230][  T427] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f272e6c854e
[   17.179232][  T427] RDX: 0000000000000000 RSI: 00007ffcf9635480 RDI: 0000000000000005
[   17.179233][  T427] RBP: 00007ffcf96353e0 R08: 0000000000000000 R09: 0000000000000000
[   17.179233][  T427] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911dc7
[   17.179234][  T427] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf9635b40
| [   19.838335][  T506] softirqs last disabled at (14624): 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))
| [   19.838338][  T506] Preemption disabled at:
| [   19.838338][  T506] vprintk_emit (kernel/printk/printk.c:2471)
| [   19.838346][  T506] Tainted: [W]=WARN
[   19.838347][  T506] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.838349][  T506] Call Trace:
[   19.838351][  T506]  <TASK>
[   19.838352][  T506]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.838358][  T506]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   19.838359][  T506]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.838364][  T506]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.838368][  T506]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.838372][  T506]  __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))
[   19.838374][  T506]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.838380][  T506]  ? 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)
[   19.838383][  T506]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.838386][  T506]  put_chars (drivers/char/virtio_console.c:1176)
[   19.838389][  T506]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.838390][  T506]  ? check_prev_add (kernel/locking/lockdep.c:3185)
[   19.838395][  T506]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   19.838398][  T506]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.838402][  T506]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.838404][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838406][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838410][  T506]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.838412][  T506]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.838416][  T506]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.838420][  T506]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.838424][  T506]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.838426][  T506]  ? 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))
[   19.838429][  T506]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.838431][  T506]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.838435][  T506]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.838439][  T506]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.838441][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838446][  T506]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.838449][  T506]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.838451][  T506]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.838452][  T506]  ? 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)
[   19.838456][  T506]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.838458][  T506]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.838460][  T506]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.838463][  T506]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.838465][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838470][  T506]  _printk (kernel/printk/printk.c:2504)
[   19.838473][  T506]  ? snapshot_read.cold (user.c:?)
[   19.838476][  T506]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.838478][  T506]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.838479][  T506]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.838480][  T506]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.838481][  T506]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   19.838485][  T506]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   19.838489][  T506]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   19.838492][  T506]  ? netdev_notice (net/core/dev.c:13194)
[   19.838494][  T506]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   19.838502][  T506]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   19.838506][  T506]  netif_set_promiscuity (net/core/dev.c:9699)
[   19.838510][  T506]  dev_set_promiscuity (net/core/dev_api.c:288)
[   19.838511][  T506]  ? __local_bh_enable_ip (kernel/softirq.c:478)
[   19.838515][  T506]  macvlan_stop (drivers/net/macvlan.c:717)
[   19.838518][  T506]  __dev_close_many (net/core/dev.c:1798)
[   19.838522][  T506]  ? net_generic (./include/linux/rcupdate.h:882 ./include/net/netns/generic.h:48) vxlan
[   19.838529][  T506]  ? netif_open (net/core/dev.c:1755)
[   19.838532][  T506]  ? netif_close_many (net/core/dev.c:1824)
[   19.838536][  T506]  netif_close_many (net/core/dev.c:1824)
[   19.838540][  T506]  ? __dev_close_many (net/core/dev.c:1804)
[   19.838543][  T506]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   19.838547][  T506]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   19.838550][  T506]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.838554][  T506]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   19.838556][  T506]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   19.838559][  T506]  ? netdev_upper_dev_unlink (net/core/dev.c:9114)
[   19.838561][  T506]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   19.838565][  T506]  rtnl_dellink (net/core/rtnetlink.c:3652 net/core/rtnetlink.c:3694)
[   19.838567][  T506]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.838569][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838570][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838572][  T506]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.838593][  T506]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.838595][  T506]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.838598][  T506]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.838600][  T506]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   19.838602][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838607][  T506]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.838608][  T506]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.838610][  T506]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.838612][  T506]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.838616][  T506]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   19.838618][  T506]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   19.838621][  T506]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.838622][  T506]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.838626][  T506]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   19.838628][  T506]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.838632][  T506]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   19.838633][  T506]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   19.838636][  T506]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   19.838643][  T506]  ? 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))
[   19.838644][  T506]  ? 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))
[   19.838649][  T506]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   19.838653][  T506]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   19.838655][  T506]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   19.838659][  T506]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   19.838663][  T506]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   19.838667][  T506]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.838669][  T506]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   19.838674][  T506]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   19.838678][  T506]  ____sys_sendmsg (net/socket.c:2713)
[   19.838680][  T506]  ? copy_msghdr_from_user (net/socket.c:2650)
[   19.838682][  T506]  ? sock_write_iter (net/socket.c:1269)
[   19.838684][  T506]  ? move_addr_to_kernel (net/socket.c:258)
[   19.838691][  T506]  ___sys_sendmsg (net/socket.c:2767)
[   19.838694][  T506]  ? copy_msghdr_from_user (net/socket.c:2619)
[   19.838709][  T506]  __sys_sendmsg (net/socket.c:2799)
[   19.838712][  T506]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   19.838718][  T506]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.838721][  T506]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.838724][  T506]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.838727][  T506]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.838729][  T506] RIP: 0033:0x7f0e93fb054e
[   19.838733][  T506] 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
[   19.838734][  T506] RSP: 002b:00007ffcfac0ae30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   19.838737][  T506] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f0e93fb054e
[   19.838738][  T506] RDX: 0000000000000000 RSI: 00007ffcfac0aee0 RDI: 0000000000000005
[   19.838739][  T506] RBP: 00007ffcfac0ae40 R08: 0000000000000000 R09: 0000000000000000
[   19.838740][  T506] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911dca
[   19.838741][  T506] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcfac0b5a0
| [   22.692421][  T593] softirqs last disabled at (13644): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.692424][  T593] Preemption disabled at:
| [   22.692424][  T593] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.692432][  T593] Tainted: [W]=WARN
[   22.692433][  T593] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.692434][  T593] Call Trace:
[   22.692436][  T593]  <TASK>
[   22.692438][  T593]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.692444][  T593]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.692445][  T593]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.692450][  T593]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.692454][  T593]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.692459][  T593]  __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))
[   22.692461][  T593]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.692467][  T593]  ? 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)
[   22.692470][  T593]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.692473][  T593]  put_chars (drivers/char/virtio_console.c:1176)
[   22.692476][  T593]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.692478][  T593]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.692483][  T593]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.692491][  T593]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.692494][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692497][  T593]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.692501][  T593]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.692505][  T593]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.692506][  T593]  ? 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))
[   22.692510][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692511][  T593]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.692515][  T593]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.692520][  T593]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.692521][  T593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.692527][  T593]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.692530][  T593]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.692531][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692533][  T593]  ? 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)
[   22.692537][  T593]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.692538][  T593]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.692541][  T593]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.692544][  T593]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.692545][  T593]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.692547][  T593]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.692550][  T593]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.692552][  T593]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.692553][  T593]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.692556][  T593]  ? ____sys_sendmsg (net/socket.c:2713)
[   22.692557][  T593]  ? ___sys_sendmsg (net/socket.c:2767)
[   22.692561][  T593]  _printk (kernel/printk/printk.c:2504)
[   22.692564][  T593]  ? snapshot_read.cold (user.c:?)
[   22.692568][  T593]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.692572][  T593]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.692576][  T593]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.692578][  T593]  ? netdev_notice (net/core/dev.c:13194)
[   22.692583][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692585][  T593]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.692587][  T593]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.692589][  T593]  ? 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)
[   22.692591][  T593]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.692595][  T593]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.692599][  T593]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   22.692605][  T593]  br_del_if (net/bridge/br_if.c:732)
[   22.692607][  T593]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   22.692610][  T593]  do_set_master (net/core/rtnetlink.c:3055)
[   22.692614][  T593]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.692617][  T593]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.692621][  T593]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.692622][  T593]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.692625][  T593]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.692628][  T593]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.692630][  T593]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.692632][  T593]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.692634][  T593]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.692637][  T593]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.692638][  T593]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.692639][  T593]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.692641][  T593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.692643][  T593]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.692645][  T593]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.692649][  T593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.692651][  T593]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.692653][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692655][  T593]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.692657][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692658][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692659][  T593]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.692661][  T593]  ? __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)
[   22.692664][  T593]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.692666][  T593]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.692669][  T593]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.692670][  T593]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.692675][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692678][  T593]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.692683][  T593]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.692688][  T593]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.692690][  T593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.692695][  T593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.692697][  T593]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.692699][  T593]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.692700][  T593]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.692704][  T593]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.692706][  T593]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.692709][  T593]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.692711][  T593]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.692715][  T593]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.692717][  T593]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.692720][  T593]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.692722][  T593]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.692725][  T593]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.692731][  T593]  ? 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))
[   22.692733][  T593]  ? 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))
[   22.692738][  T593]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.692742][  T593]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.692744][  T593]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.692748][  T593]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.692752][  T593]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.692756][  T593]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.692758][  T593]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.692763][  T593]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.692765][  T593]  ____sys_sendmsg (net/socket.c:2713)
[   22.692768][  T593]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.692770][  T593]  ? sock_write_iter (net/socket.c:1269)
[   22.692771][  T593]  ? move_addr_to_kernel (net/socket.c:258)
[   22.692779][  T593]  ___sys_sendmsg (net/socket.c:2767)
[   22.692781][  T593]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.692797][  T593]  __sys_sendmsg (net/socket.c:2799)
[   22.692800][  T593]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.692806][  T593]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.692809][  T593]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.692812][  T593]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.692815][  T593]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.692817][  T593] RIP: 0033:0x7fd92633a54e
[   22.692821][  T593] 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
[   22.692823][  T593] RSP: 002b:00007ffe63cd11b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.692825][  T593] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd92633a54e
[   22.692827][  T593] RDX: 0000000000000000 RSI: 00007ffe63cd1260 RDI: 0000000000000005
[   22.692827][  T593] RBP: 00007ffe63cd11c0 R08: 0000000000000000 R09: 0000000000000000
[   22.692828][  T593] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911dcd


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